Effects of Forming Conditions of Roll Offset Method on Sectional Shape at the Corner of Square Steel Pipe +
|
|
- Gilbert Jeffery McLaughlin
- 5 years ago
- Views:
Transcription
1 Materials Transactions, Vol. 54, No. 9 (2013) pp to The Japan Society for Technology of Plasticity Effects of Forming Conditions of Roll Offset Method on Sectional Shape at the Corner of Square Steel Pipe + Takuo Nagamachi 1, Takefumi Nakako 2 and Daisuke Nakamura 2 1 Institute of Technology and Science, University of Tokushima, Tokushima , Japan 2 Steel & Technology Development Laboratories, Nisshin Steel Co., Ltd., Sakai , Japan Square steel pipes are reshaped from welded round pipes by roll-forming. Effects of the roll diameter on the cross-sectional size of the square steel pipe were investigated by experimentation and three-dimensional finite element simulation. When the top roll diameter is greater than that of the side roll, then the width of a corner part of the formed pipe is greater than the height. The square steel pipe was formed by offsetting the small roll to the upstream side to make the width and height of a corner part equal. The offsetting result is affected by the longitudinal contact distance between a roll and a pipe. The geometric contact length and relative offset, the offsetting distance/geometric contact length, were defined. The optimum value of the relative offset was clarified, which increased with the expansion of the contact length of a top roll, the roll gap and the round pipe wall thickness. [doi: /matertrans.p-m ] (Received August 31, 2012; Accepted June 8, 2013; Published August 2, 2013) Keywords: roll forming, square steel pipe, roll diameter, offset, finite element (FE) simulation 1. Introduction Square steel pipes, normally produced by roll forming, are used widely as structural elements of buildings and machines. In the forming process, a roll set consisting of a top and bottom pair and a side pair, is generally arranged. Then several roll sets are connected tandemly. A circular pipe is pushed into the virtually square-shaped calibers of the center of the roll set. Bent corners and re-bent sides are formed in the cross section of the circular pipe. Finally the circular pipe is changed into a square pipe. On this subject, Kiuchi et al. 1) have conducted a series of experimental studies. To date Onoda et al. 2) reported an experimental investigation based on their numerical analyses. When designing a roll-forming machine for production of square steel pipes, the diameter of the paired top and bottom rolls is usually set as larger than that of the side roll pair. Thereby interference is avoided between the roll axes driven by electric motors. The authors have conducted experiments and FE simulations for top and bottom rolls with diameters larger than those of side rolls. 3) Results show the following: (1) the width of the formed pipe becomes smaller than its height, (2) it is therefore necessary to perform finish forming with a small increment of reduction to obtain a real square pipe, (3) the width of the corner is larger than its height, (4) offset forming in which roll pairs with smaller diameter are offset in the upstream direction is effective to produce pipes with equal width and height of the corner part. In this study, extended forming experiments and FE simulations are conducted to verify the results of offset forming in our previous report. We were able to ascertain the offset conditions to provide a sound corner shape are verified by examining the effect of the diameter ratio of top-bottom rolls to those of side one, reduction from circular pipe to square one and the initial thickness of the circular pipe, on relationship between amount of the offset and the geometry at the corner. 2. Experiment and Analysis Figure 1 presents a schematic view of the forming process used in this study. Hydraulic cylinder pushes the circular pipe into square-shaped roll calibers consisting of four roll sets. After passing roll sets, the square steel pipe is discharged finally. No rolls are driven in this process. Roll names and their dimensions are presented in Fig. 2 and Table 1. Rolls from A to D listed in the table have different diameters respectively. Three combinations of top and bottom rolls and side rolls, A-B, A-C and A-D, were investigated in a previous Fig. 1 Schematic illustration of forming processes. + This Paper was Originally Published in Japanese in J. JSTP 52 (2011) Fig. 2 Notations of roll dimensions.
2 1704 T. Nagamachi, T. Nakako and D. Nakamura Table 1 Path schedules. Table 2 Mechanical properties of round pipe. Roll gap Square pipe No. 1 process No. 2 process No. 3 process A/mm H 1 /mm r 1 /% H 2 /mm r 2 /% H 3 /mm r 3 /% Wall thickness: 2.11 mm Young s modules: GPa Poisson s ratio: 0.3 Yield stress: MPa n value: Flow stress: ¼ 468:4 ¾ 0:671 þ 387:9 MPa Reduction r i = (d 0 ¹ 2H i )/d 0 Roll dimension Process D Ti, D Si /mm No. i Roll-A Roll-B Roll-C Roll-D R/mm W/mm No No No ¹ Fig. 4 Notation representing corner shape of formed pipe. Fig. 3 Definition of geometrical contact length (L Ti, L Si ). study. 3) Two combinations of B-C and C-D are added for further examination of the effect of diameter ratio D Ti /D Si on the cross-sectional size at the corner. Here, geometric contact lengths are shown in Fig. 3 as a parameter representing diameter and configuration of rolls. These values at i-th process, L Ti and L Si, might be calculated using the following equations for top and bottom rolls and side rolls, respectively. s ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi D 2 Ti L Ti ¼ D 2 Ti 2 2 H i 1 þ H i ð1þ s ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi D 2 Si L Si ¼ D 2 Si 2 2 H i 1 þ H i ð2þ Nomenclature is presented in Fig. 2 and Table 1. For No. 1 process (i = 1), H i¹1 = H 0 = d 0 /2 (radius of the circular pipe). Table 2 presents mechanical properties obtained from tensile tests with a test piece. This is cut from a circular tube with the initial thickness t 0 of 2.11 mm, which is equivalent to a STK400 galvanized steel tube. The experimental apparatus places limits on experimental conditions mm on initial thickness t 0, 21.4% on reduction r i and 7.5 mm on offset Z oi. For conditions of t 0 heavier than 2.11 mm, r 3 larger than 23.3% and roll combinations except A-B, FE simulation is employed. This is conducted separately at each stand using a static implicit scheme applied to transient elasto-plastic analysis. Other details of the analysis are the same as those described in the previous report. 3) The domain for FE simulation is divided into hexahedral elements with eight nodes. Three elements are allocated in the thickness direction. The total number of elements is approximately 15,000 to 20,000 and 0.12 was assumed for the coefficient of Coulomb friction. Mechanical property of a circular pipe with initial thickness t 0 between 1.06 and 4.23 mm is assumed to be the same as that shown in Table 2. A general-purpose code of DEFORM-3D Ver. 6.1 was used for calculation. It took for 12 to 24 h in one forming stand on a PC with a Core 2, 3.0 GHz processor. 3. Results and Discussions 3.1 Influence of diameter ratio of top and bottom rolls to side rolls Although final dimensions of the cross-section that passed through three stands are important, the pipe that passed only the No. 1 stand and No. 1 and No. 2 stands were evaluated to make clear the effects of upstream deformations on crosssectional dimensions of the final product. The nomenclature for cross-sectional dimensions of the formed pipe is shown in Fig. 4. The peripheral part that made contact with the roll is defined as the side, and that which made no contact with it as the corner, while the boundary between these two parts as the shoulder. The width and the height of the corner (between two shoulders) are designated as s x and s y respectively; s a is the average of these two. Figure 5 demonstrates the average s a versus diameter ratio of top and bottom rolls to that of side rolls D Ti /D Si and Fig. 5 deviation of s y from s a,(s y ¹ s a )/s a. Ratio of the thickness to the outer diameter t 0 /d 0 is 3.9% and reduction r 3 is 19.6%. s a for every stand keeps almost constant for increasing D Ti /D Si. Whereas, (s y ¹ s a )/s a decreases with increasing D Ti /D Si and becomes negative, namely s x > s y for D Ti /D Si > 1.0. This status is expressed as corner droop. This occurrence can be explained by contact conditions between the pipe and the roll, 3) as follows. Because of the difference in roll diameters between the top and bottom pair and the side pair, lengths of longitudinal contact differ
3 Effects of Forming Conditions of Roll Offset Method on Sectional Shape at the Corner of Square Steel Pipe 1705 between two roll pairs. The longer contact length by the top and bottom rolls compared with that by side rolls causes the corner to shift from top to side. Then the shoulder of the top side goes away from the corner center and that of the side approaches it. Kondo et al. 4) described four-roll forming of wire and rods, whereby the longitudinal offset of axes of side roll pairs in the upstream direction (¹z direction) made the product wider horizontally. Considering the shift of the corner from top to side in our study as widening deformation by top and bottom rolls, suppression of the widening deformation and therefore the corner droop described above are expected by offsetting side rolls to the upstream direction. In our previous study, 3) experiments and FE simulation for roll combinations of A-B, A-C and A-D were conducted. The effectiveness of side rolls offsetting was confirmed to form products that have a corner with the equal width to the height. In the current study adding some more combinations of rolls, additional FE simulations were conducted. Fig. 5 Relationship between ratio of roll diameter and corner shape of pipe formed by No. i rolls (t 0 /d 0 = 3.9%, r 1 = 12.2%, r 2 = 17.1%, r 3 = 19.6%); Average of height s y and width s x of corner, Deviation of height s y to average s a of corner. Figure 6 shows the corner deviation (s y ¹ s a )/s a versus side roll offsetting Z oi for No. 1 stand. Side roll offsetting Z oi shows the longitudinal distance between the center of top and bottom rolls and that of side rolls, and is presented in Fig. 2. Figure 6 shows that (s y ¹ s a )/s a approaches zero with increasing Z oi. Therefore, the corner droop is balanced. However, too much offsetting of Z o1 causes results with (s y ¹ s a )/s a > 0 and therefore s x < s y, which means an inverse corner droop. To balance corner droop, (s y ¹ s a )/ s a = 0, Z o1 of 6.2 mm is found for D T1 /D S1 = 2.0, the roll combination of A-C and marked by. For combinations B-D, marked by, Z o1 is 4.0 mm for the same value of D T1 /D S For a combination of smaller rolls such as B-D, the longitudinal contact length for top and bottom rolls is short and widening deformation of pipe occurs in the adjacent region to the roll center. This fact might explain the smaller offsetting of side rolls to suppress widening deformation. Relative offset Z o1 /L a1 is introduced to normalize the offset, where L a1 is the average of geometrical contact length between the pipe and the roll denoted by L T1 and L S1, which was defined respectively in eqs. (1) and (2). The relationship between (s y ¹ s a )/s a and Z o1 /L a1 is shown in Fig. 6. L T1 /L S1 is shown in the same figure as a parameter representing the roll combination. This figure suggests that, Z o1 /L a1 that makes (s y ¹ s a )/s a zero becomes larger as L T1 / L S1 is increased. One might find the optimum offset balancing corner droop uniquely for any combination of rolls by making use of the geometrical contact length. Figure 7 shows (s y ¹ s a )/s a of pipes after successive offset forming by stands No. 1 and No. 2. Results for roll combinations of B-C, C-D and B-D are shown. Because the reduction increment at No. 3 finishing process is quite small, pipe shape after No. 3 process marked by, shows little difference in that after No. 2 process, marked by, as shown in Figs. 5 and 5. This fact suggests that forming work should be made only by No. 1 and 2 stands to obtain products with small droop. Fig. 6 Effect of ratio of roll diameter on relationship between offset and deviation of corner shape of pipe formed by No. 1 rolls (t 0 /d 0 = 3.9l%, r 1 = 12.2%, simulation results); (s y ¹ s a )/s a vs. Z o1 (s y ¹ s a )/s a vs. Z o1 /L a1.
4 1706 T. Nagamachi, T. Nakako and D. Nakamura (c) Fig. 7 Effect of offset Z o1 on relationship between offset Z o2 and deviation of corner shape of pipe formed by No. 2 rolls (t 0 /d 0 = 3.91%, r 1 = 12.2%, r 2 = 17.1%, simulation results); L T2 /L S2 = 1.14 L T2 /L S2 = 1.23 (c) L T2 /L S2 = Fig. 9 Effect of reduction r 1 on relationship between ratio of roll diameter and corner shape of pipe formed by No. l rolls (t 0 /d 0 = 3.91%); Average of height s y and width s x of corner Deviation of height s y to average s a of corner. Fig. 8 Effect of ratio of geometrical contact length on offset of rolls in case of becoming s y ¹ s a = 0(t 0 /d 0 = 3.91%, r 1 = 12.2%, r 2 = 17.1%). Several combinations of offset at No. 1 and 2 stands eliminating corner droop are possible for roll diameter ratios of, top-bottom rolls and side rolls, as shown in Fig. 7. Figure 8 summarizes combinations obtained from 7 types of experiments and 127 types of FE simulations. 3.2 Effect of reduction The effect of reduction from a circular pipe to a square one on sectional dimensions of formed pipes is discussed, for 3.9% with ratio of thickness to outer diameter of circular pipe t 0 /d 0, and 19.6, 21.4 and 23.3% with final reduction r 3. Figure 9 demonstrates effects of reduction r 1 on relationship between s a and D Ti /D Si and that between (s y ¹ s a )/s a and D Ti /D Si for No. 1 process. In Fig. 9, s a is almost constant with increasing D Ti /D Si, but it decreases rapidly with increasing r 1 for the fixed D Ti /D Si. In Fig. 9, (s y ¹ s a )/s a is decreased with increasing D Ti /D Si, but this is nearly kept constant with varying r 1 for the fixed D Ti /D Si. These results are the same in the real product. With increasing r 1,(s y ¹ s a )/s a is nearly kept constant, but s a is decreased rapidly. This means that actual difference between height and width of the corner s y ¹ s a (= s y /2 ¹ s x /2) is decreased rapidly with increasing r 1. For small difference of s y ¹ s a, a small offset might eliminate the corner droop. The effect of reduction r 1 on the relationship between Z o1 /L a1 and (s y ¹ s a )/s a for No. 1 process is presented in Fig. 10. Inferring from results presented in Fig. 9, Z o1 /L a1 that makes (s y ¹ s a )/s a zero is decreased with increasing r 1 in every combination of rolls. Figure 11 summarizes those combinations of offset at No. 1 and 2 stands eliminating corner droop. These have been found from 14 types of experiments and 139 types of FE simulations. As reduction becomes larger, corner droop can be eliminated with smaller Z o1 and Z o Effect of initial pipe thickness The effect of the initial thickness on sectional dimensions of formed pipes is discussed, for 19.6% in reduction r 3 with 2.0, 3.9, 5.9 and 7.8% in ratio of the thickness to the outer diameter of circular pipe t 0 /d 0. Figure 12 demonstrates effects of t 0 /d 0 on relationship between s a and D Ti /D Si and that between (s y ¹ s a )/s a and
5 Effects of Forming Conditions of Roll Offset Method on Sectional Shape at the Corner of Square Steel Pipe 1707 (c) Fig. 10 Effect of reduction r 1 on relationship between offset Z o1 and deviation of corner shape of pipe formed by No. l rolls (t 0 /d 0 = 3.9l%); L T1 /L S1 = 1.27 L T1 /L S1 = 1.43 (c) L T1 /L S1 = (c) Fig. 12 Effect of wall thickness t 0 on relationship between ratio of roll diameter and corner shape of pipe formed by No. 1 rolls (r 1 = 12.2%); Average of height s y and width s x of corner Deviation of height s y to average s a of corner. Fig. 11 Effect of reduction r i on offset of rolls in case of becoming s y ¹ s a = 0(t 0 /d 0 = 3.9l%); L Ti /L Si = 1.27 L Ti /L Si = 1.43 (c) L Ti / L Si = D Ti /D Si for No. 1 stand. In Fig. 12, s a is almost constant with increasing D Ti /D Si, but s a is increased rapidly with t 0 /d 0 for the fixed D Ti /D Si. Whereas in Fig. 12, (s y ¹ s a )/s a is decreased with increasing D Ti /D Si. Clear effect is not found for varied t 0 /d 0 for the fixed D Ti /D Si. Even with increasing t 0 /d 0,(s y ¹ s a )/s a is nearly kept constant but s a is increased rapidly. In brief, actual difference s y ¹ s a (= s y /2 ¹ s x /2) is increased rapidly with increasing t 0 /d 0. For large difference of s y ¹ s a, large offset might be necessary to eliminate the corner droop. The effect of ratio of thickness to outer diameter t 0 /d 0 on the relationship between Z o1 /L a1 and (s y ¹ s a )/s a for No. 1 stand is presented in Fig. 13. As expected from Fig. 12, Z o1 / L a1 that makes (s y ¹ s a )/s a zero is increased together with increasing t 0 /d 0 in every combination of rolls examined in through (c). However, for the condition with the largest ratios of 1.77 for L T1 /L S1 and 7.8% for t 0 /d 0 in Fig. 13(c), (s y ¹ s a )/s a was not zero even by a considerable large offset. The corner droop on this condition can not be a eliminated. Figure 14 summarizes combinations of offsets at No. 1 and 2 processes for eliminating corner droop. These have been found from 7 kinds of experiments and 261 kinds of FE simulations. The larger the ratio of thickness to outer diameter is, the larger offset is necessary to eliminate corner droop. In Fig. 14(c) for L T1 /L S1 = 1.77, offsets to eliminate corner droop can not been found for pipes with heavier thicknesses t 0 /d and 7.8%. 4. Conclusions (1) Corner droop can be reduced by offsetting side rolls. This depends on the longitudinal contact length of top and bottom rolls. (2) Defining the geometrical contact length by normalizing the offset by the defined contact length, it is possible to find the optimum offset uniquely for forming conditions.
6 1708 T. Nagamachi, T. Nakako and D. Nakamura (c) Fig. 13 Effect of wall thickness t 0 on relationship between offset Z o1 and deviation of corner shape of pipe formed by No. 1 rolls (r 1 = 12.2%); L T1 /L S1 = 1.27 L T1 /L S1 = 1.43 (c) L T1 /L S1 = (c) Fig. 14 Effect of wall thickness t 0 on offset of rolls in case of becoming s y ¹ s a = 0(r 3 = 19.6%); L Ti /L Si = 1.27 L Ti /L Si = 1.43 (c) L Ti /L Si = (3) The relative offset to eliminate the corner droop is made clear for many forming conditions. The larger the ratio of geometrical contact length of top and bottom rolls to that of side rolls is, the larger the offset becomes. The larger the reduction from the circular pipe to the square one is, the smaller it becomes. The heavier the ratio of thickness to the outer diameter of the circular pipe is, again the larger it becomes. REFERENCES 1) M. Kiuchi, K. Shintani and M. Tozawa: J. JSTP 21 (1980) (in Japanese). 2) Y. Onoda, T. Nagamachi and T. Sugiyama: J. JSTP 36 (1995) (in Japanese). 3) T. Nagamachi, T. Nakako and D. Nakamura: Mater. Trans. 52 (2011) ) H. Kondo, R. Takeda, K. Ohmori and N. Kunita: Kawasaki Steel GIHO 28 (1996) (in Japanese).
Effect of Pass Schedule on Cross-Sectional Shapes of Circular Seamless Pipes Reshaped into Square Shapes by Hot Roll Sizing Mill*
Materials Transactions, Vol. 45, No. 4 (4) pp. 13 to 137 #4 The Japan Institute of Metals Effect of Pass Schedule on Cross-Sectional Shapes of Circular Seamless Pipes Reshaped into Square Shapes b Hot
More informationExpansion of circular tubes by rigid tubes as impact energy absorbers: experimental and theoretical investigation
Expansion of circular tubes by rigid tubes as impact energy absorbers: experimental and theoretical investigation M Shakeri, S Salehghaffari and R. Mirzaeifar Department of Mechanical Engineering, Amirkabir
More informationStresses Analysis of Petroleum Pipe Finite Element under Internal Pressure
ISSN : 48-96, Vol. 6, Issue 8, ( Part -4 August 06, pp.3-38 RESEARCH ARTICLE Stresses Analysis of Petroleum Pipe Finite Element under Internal Pressure Dr.Ragbe.M.Abdusslam Eng. Khaled.S.Bagar ABSTRACT
More informationFinite Element Simulation with Coupled Thermo-Mechanical Analysis of Superplastic Dieless Tube Drawing Considering Strain Rate Sensitivity*
Materials Transactions, Vol., No. 1 (29) pp. 161 to 166 #29 The Japan Society for Technology of Plasticity Finite Element Simulation with Coupled Thermo-Mechanical Analysis of Superplastic Dieless Tube
More informationInfluence of impact velocity on transition time for V-notched Charpy specimen*
[ 溶接学会論文集第 35 巻第 2 号 p. 80s-84s (2017)] Influence of impact velocity on transition time for V-notched Charpy specimen* by Yasuhito Takashima** and Fumiyoshi Minami** This study investigated the influence
More informationREPORT TO D-FLEX LTD APRIL 2009 REPORT. (to D-Flex Ltd, NWDA Innovation Vouchers Award, 28 April 2009)
REPORT (to D-Flex Ltd, NWDA Innovation Vouchers Award, 28 April 2009) Finite Element Modelling of Rigidity of Fishing Rods with Various Cross-sections Report to D-Flex Ltd by Z Guan Department of Engineering,
More informationInfluence of Back Pressure on Slab Edge Deformation Behavior during Width Reduction Pressing *1
Materials Transactions, Vol. 57, No. 9 (2016) pp. 1567 to 1574 2016 The Japan Society for Technology of Plasticity Influence of Back Pressure on Slab Edge Deformation Behavior during Width Reduction Pressing
More informationCHAPTER 7 FINITE ELEMENT ANALYSIS OF DEEP GROOVE BALL BEARING
113 CHAPTER 7 FINITE ELEMENT ANALYSIS OF DEEP GROOVE BALL BEARING 7. 1 INTRODUCTION Finite element computational methodology for rolling contact analysis of the bearing was proposed and it has several
More informationNORMAL STRESS. The simplest form of stress is normal stress/direct stress, which is the stress perpendicular to the surface on which it acts.
NORMAL STRESS The simplest form of stress is normal stress/direct stress, which is the stress perpendicular to the surface on which it acts. σ = force/area = P/A where σ = the normal stress P = the centric
More informationThe University of Melbourne Engineering Mechanics
The University of Melbourne 436-291 Engineering Mechanics Tutorial Four Poisson s Ratio and Axial Loading Part A (Introductory) 1. (Problem 9-22 from Hibbeler - Statics and Mechanics of Materials) A short
More informationCOURSE TITLE : APPLIED MECHANICS & STRENGTH OF MATERIALS COURSE CODE : 4017 COURSE CATEGORY : A PERIODS/WEEK : 6 PERIODS/ SEMESTER : 108 CREDITS : 5
COURSE TITLE : APPLIED MECHANICS & STRENGTH OF MATERIALS COURSE CODE : 4017 COURSE CATEGORY : A PERIODS/WEEK : 6 PERIODS/ SEMESTER : 108 CREDITS : 5 TIME SCHEDULE MODULE TOPICS PERIODS 1 Simple stresses
More informationAnalysis of axisymmetric cup forming of metal foil and micro hydroforming process
University of Wollongong Research Online Faculty of Engineering and Information Sciences - Papers: Part A Faculty of Engineering and Information Sciences 3 Analysis of axisymmetric cup forming of metal
More informationExperiment (4): Flow measurement
Experiment (4): Flow measurement Introduction: The flow measuring apparatus is used to familiarize the students with typical methods of flow measurement of an incompressible fluid and, at the same time
More informationStrength of Material. Shear Strain. Dr. Attaullah Shah
Strength of Material Shear Strain Dr. Attaullah Shah Shear Strain TRIAXIAL DEFORMATION Poisson's Ratio Relationship Between E, G, and ν BIAXIAL DEFORMATION Bulk Modulus of Elasticity or Modulus of Volume
More informationMechanics of Solids. Mechanics Of Solids. Suraj kr. Ray Department of Civil Engineering
Mechanics Of Solids Suraj kr. Ray (surajjj2445@gmail.com) Department of Civil Engineering 1 Mechanics of Solids is a branch of applied mechanics that deals with the behaviour of solid bodies subjected
More informationANALYTICAL PENDULUM METHOD USED TO PREDICT THE ROLLOVER BEHAVIOR OF A BODY STRUCTURE
The 3rd International Conference on Computational Mechanics and Virtual Engineering COMEC 2009 29 30 OCTOBER 2009, Brasov, Romania ANALYTICAL PENDULUM METHOD USED TO PREDICT THE ROLLOVER BEHAVIOR OF A
More informationCHAPTER 3 THE EFFECTS OF FORCES ON MATERIALS
CHAPTER THE EFFECTS OF FORCES ON MATERIALS EXERCISE 1, Page 50 1. A rectangular bar having a cross-sectional area of 80 mm has a tensile force of 0 kn applied to it. Determine the stress in the bar. Stress
More informationBack Calculation of Rock Mass Modulus using Finite Element Code (COMSOL)
Back Calculation of Rock Mass Modulus using Finite Element Code (COMSOL) Amirreza Ghasemi 1. Introduction Deformability is recognized as one of the most important parameters governing the behavior of rock
More informationStress Analysis Lecture 3 ME 276 Spring Dr./ Ahmed Mohamed Nagib Elmekawy
Stress Analysis Lecture 3 ME 276 Spring 2017-2018 Dr./ Ahmed Mohamed Nagib Elmekawy Axial Stress 2 Beam under the action of two tensile forces 3 Beam under the action of two tensile forces 4 Shear Stress
More informationMAAE 2202 A. Come to the PASS workshop with your mock exam complete. During the workshop you can work with other students to review your work.
It is most beneficial to you to write this mock final exam UNDER EXAM CONDITIONS. This means: Complete the exam in 3 hours. Work on your own. Keep your textbook closed. Attempt every question. After the
More informationFluid Mechanics. If deformation is small, the stress in a body is proportional to the corresponding
Fluid Mechanics HOOKE'S LAW If deformation is small, the stress in a body is proportional to the corresponding strain. In the elasticity limit stress and strain Stress/strain = Const. = Modulus of elasticity.
More informationEffect of buttress on reduction of rock slope sliding along geological boundary
Paper No. 20 ISMS 2016 Effect of buttress on reduction of rock slope sliding along geological boundary Ryota MORIYA *, Daisuke FUKUDA, Jun-ichi KODAMA, Yoshiaki FUJII Faculty of Engineering, Hokkaido University,
More information: APPLIED MECHANICS & STRENGTH OF MATERIALS COURSE CODE : 4021 COURSE CATEGORY : A PERIODS/ WEEK : 5 PERIODS/ SEMESTER : 75 CREDIT : 5 TIME SCHEDULE
COURSE TITLE : APPLIED MECHANICS & STRENGTH OF MATERIALS COURSE CODE : 4021 COURSE CATEGORY : A PERIODS/ WEEK : 5 PERIODS/ SEMESTER : 75 CREDIT : 5 TIME SCHEDULE MODULE TOPIC PERIODS 1 Simple stresses
More informationA study of forming pressure in the tube-hydroforming process
Journal of Materials Processing Technology 192 19 (2007) 404 409 A study of forming pressure in the tube-hydroforming process Fuh-Kuo Chen, Shao-Jun Wang, Ray-Hau Lin Department of Mechanical Engineering,
More informationEffect of Forming Conditions on Bending Characteristics in Push-Through Bending of Aluminum Extrusion Sections
Effect of Forming Conditions on Bending Characteristics in Push-Through Bending of Aluminum Extrusion Sections Hidemitsu Hamano, and Hisaki Watari Abstract It has been initially investigated t the clearance
More informationOptimization of blank dimensions to reduce springback in the flexforming process
Journal of Materials Processing Technology 146 (2004) 28 34 Optimization of blank dimensions to reduce springback in the flexforming process Hariharasudhan Palaniswamy, Gracious Ngaile, Taylan Altan ERC
More informationMechanics of Materials II. Chapter III. A review of the fundamental formulation of stress, strain, and deflection
Mechanics of Materials II Chapter III A review of the fundamental formulation of stress, strain, and deflection Outline Introduction Assumtions and limitations Axial loading Torsion of circular shafts
More informationChapter 5 Torsion STRUCTURAL MECHANICS: CE203. Notes are based on Mechanics of Materials: by R. C. Hibbeler, 7th Edition, Pearson
STRUCTURAL MECHANICS: CE203 Chapter 5 Torsion Notes are based on Mechanics of Materials: by R. C. Hibbeler, 7th Edition, Pearson Dr B. Achour & Dr Eng. K. El-kashif Civil Engineering Department, University
More informationModel tests and FE-modelling of dynamic soil-structure interaction
Shock and Vibration 19 (2012) 1061 1069 1061 DOI 10.3233/SAV-2012-0712 IOS Press Model tests and FE-modelling of dynamic soil-structure interaction N. Kodama a, * and K. Komiya b a Waseda Institute for
More informationFriction Properties of Surface with Circular Micro-patterns
Friction Properties of Surface with Circular Micro-patterns Hideo Koguchi Mechanical Engineering, 603- Kamitomioka, Nagaoka Univ. of Tech., Nagaoka, Niigata, Japan Email: koguchi@mech.nagaokaut.ac.jp Takayoshi
More informationEMA 3702 Mechanics & Materials Science (Mechanics of Materials) Chapter 3 Torsion
EMA 3702 Mechanics & Materials Science (Mechanics of Materials) Chapter 3 Torsion Introduction Stress and strain in components subjected to torque T Circular Cross-section shape Material Shaft design Non-circular
More informationNumerical Modelling of Dynamic Earth Force Transmission to Underground Structures
Numerical Modelling of Dynamic Earth Force Transmission to Underground Structures N. Kodama Waseda Institute for Advanced Study, Waseda University, Japan K. Komiya Chiba Institute of Technology, Japan
More informationCHAPTER 4: BENDING OF BEAMS
(74) CHAPTER 4: BENDING OF BEAMS This chapter will be devoted to the analysis of prismatic members subjected to equal and opposite couples M and M' acting in the same longitudinal plane. Such members are
More informationN = Shear stress / Shear strain
UNIT - I 1. What is meant by factor of safety? [A/M-15] It is the ratio between ultimate stress to the working stress. Factor of safety = Ultimate stress Permissible stress 2. Define Resilience. [A/M-15]
More information1. A pure shear deformation is shown. The volume is unchanged. What is the strain tensor.
Elasticity Homework Problems 2014 Section 1. The Strain Tensor. 1. A pure shear deformation is shown. The volume is unchanged. What is the strain tensor. 2. Given a steel bar compressed with a deformation
More information7.6 Stress in symmetrical elastic beam transmitting both shear force and bending moment
7.6 Stress in symmetrical elastic beam transmitting both shear force and bending moment à It is more difficult to obtain an exact solution to this problem since the presence of the shear force means that
More informationDownloaded from Downloaded from / 1
PURWANCHAL UNIVERSITY III SEMESTER FINAL EXAMINATION-2002 LEVEL : B. E. (Civil) SUBJECT: BEG256CI, Strength of Material Full Marks: 80 TIME: 03:00 hrs Pass marks: 32 Candidates are required to give their
More informationLongitudinal buckling of slender pressurised tubes
Fluid Structure Interaction VII 133 Longitudinal buckling of slender pressurised tubes S. Syngellakis Wesse Institute of Technology, UK Abstract This paper is concerned with Euler buckling of long slender
More informationSTANDARD SAMPLE. Reduced section " Diameter. Diameter. 2" Gauge length. Radius
MATERIAL PROPERTIES TENSILE MEASUREMENT F l l 0 A 0 F STANDARD SAMPLE Reduced section 2 " 1 4 0.505" Diameter 3 4 " Diameter 2" Gauge length 3 8 " Radius TYPICAL APPARATUS Load cell Extensometer Specimen
More informationPDDC 1 st Semester Civil Engineering Department Assignments of Mechanics of Solids [ ] Introduction, Fundamentals of Statics
Page1 PDDC 1 st Semester Civil Engineering Department Assignments of Mechanics of Solids [2910601] Introduction, Fundamentals of Statics 1. Differentiate between Scalar and Vector quantity. Write S.I.
More information[5] Stress and Strain
[5] Stress and Strain Page 1 of 34 [5] Stress and Strain [5.1] Internal Stress of Solids [5.2] Design of Simple Connections (will not be covered in class) [5.3] Deformation and Strain [5.4] Hooke s Law
More informationFinite Element Analysis of Shot Peening -On the profile of a single dent-
Finite Element Analysis of Shot Peening -On the profile of a single dent- Masahiro Kitamura, Katsuji Tosha, Emmanuelle Rouhaud 2 Meiji University, -- Higashimita, Tama-ku, Kawasaki 24-857, Japan 2 University
More informationDIVIDED SYLLABUS ( ) - CLASS XI PHYSICS (CODE 042) COURSE STRUCTURE APRIL
DIVIDED SYLLABUS (2015-16 ) - CLASS XI PHYSICS (CODE 042) COURSE STRUCTURE APRIL Unit I: Physical World and Measurement Physics Need for measurement: Units of measurement; systems of units; SI units, fundamental
More informationModeling of Thermo-Mechanical Stresses in Twin-Roll Casting of Aluminum Alloys
Materials Transactions, Vol. 43, No. 2 (2002) pp. 214 to 221 c 2002 The Japan Institute of Metals Modeling of Thermo-Mechanical Stresses in Twin-Roll Casting of Aluminum Alloys Amit Saxena 1 and Yogeshwar
More informationFig. 1. Circular fiber and interphase between the fiber and the matrix.
Finite element unit cell model based on ABAQUS for fiber reinforced composites Tian Tang Composites Manufacturing & Simulation Center, Purdue University West Lafayette, IN 47906 1. Problem Statement In
More informationCHAPTER 6 MECHANICAL PROPERTIES OF METALS PROBLEM SOLUTIONS
CHAPTER 6 MECHANICAL PROPERTIES OF METALS PROBLEM SOLUTIONS Concepts of Stress and Strain 6.1 Using mechanics of materials principles (i.e., equations of mechanical equilibrium applied to a free-body diagram),
More informationmy!wind Ltd 5 kw wind turbine Static Stability Specification
my!wind Ltd 5 kw wind turbine Static Stability Specification 1 P a g e 0 3 / 0 4 / 2 0 1 4 Contents Contents... 2 List of Changes... 2 Appendixes... 2 General remarks... 3 1. Introduction... 4 2. Geometry...
More informationDesign and Analysis of Adjustable Inside Diameter Mandrel for Induction Pipe Bender
International Journal of Engineering Trends and Technology (IJETT) Volume0Number - Apr 0 Design and Analysis of Adjustable Inside Diameter Mandrel for Induction Pipe Bender S.Nantha Gopan, M.Gowtham J.Kirubakaran
More informationNumerical Model of Tube Freeform Bending by Three-Roll-Push-Bending
2 nd International Conference on Engineering Optimization September 6-9, 21, Lisbon, Portugal Numerical Model of Tube Freeform Bending by Three-Roll-Push-Bending H. Hagenah 1, D. Vipavc 1, R. Plettke 1,
More information(Refer Slide Time: 1: 19)
Mechanical Measurements and Metrology Prof. S. P. Venkateshan Department of Mechanical Engineering Indian Institute of Technology, Madras Module - 4 Lecture - 46 Force Measurement So this will be lecture
More informationPurpose of this Guide: To thoroughly prepare students for the exact types of problems that will be on Exam 3.
ES230 STRENGTH OF MTERILS Exam 3 Study Guide Exam 3: Wednesday, March 8 th in-class Updated 3/3/17 Purpose of this Guide: To thoroughly prepare students for the exact types of problems that will be on
More informationRODS: THERMAL STRESS AND STRESS CONCENTRATION
RODS: HERML SRESS ND SRESS CONCENRION Example 5 rod of length L, cross-sectional area, and modulus of elasticity E, has been placed inside a tube of the same length L, but of cross-sectional area and modulus
More informationNumerical simulation of the coil spring and investigation the impact of tension and compression to the spring natural frequencies
Numerical simulation of the coil spring and investigation the impact of tension and compression to the spring natural frequencies F. D. Sorokin 1, Zhou Su 2 Bauman Moscow State Technical University, Moscow,
More informationFlow and heat transfer characteristics of tornado-like vortex flow
Advances in Fluid Mechanics VI 277 Flow and heat transfer characteristics of tornado-like vortex flow Y. Suzuki & T. Inoue Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology
More informationElasticity: Term Paper. Danielle Harper. University of Central Florida
Elasticity: Term Paper Danielle Harper University of Central Florida I. Abstract This research was conducted in order to experimentally test certain components of the theory of elasticity. The theory was
More informationTuesday, February 11, Chapter 3. Load and Stress Analysis. Dr. Mohammad Suliman Abuhaiba, PE
1 Chapter 3 Load and Stress Analysis 2 Chapter Outline Equilibrium & Free-Body Diagrams Shear Force and Bending Moments in Beams Singularity Functions Stress Cartesian Stress Components Mohr s Circle for
More informationQUESTION BANK SEMESTER: III SUBJECT NAME: MECHANICS OF SOLIDS
QUESTION BANK SEMESTER: III SUBJECT NAME: MECHANICS OF SOLIDS UNIT 1- STRESS AND STRAIN PART A (2 Marks) 1. Define longitudinal strain and lateral strain. 2. State Hooke s law. 3. Define modular ratio,
More informationCorrection methods for dropping of simulated water level utilising Preissmann and MOUSE slot models
11 th International Conference on Urban Drainage, Edinburgh, Scotland, UK, 8 Correction methods for dropping of simulated water level utilising Preissmann and MOUSE slot models T. UKON 1, N. SHIGETA, M.
More informationTest Method Applied on One Surface to Corner Defect of Reinforcing Bar in Concrete Pier with Permanent Magnet
Test Method Applied on One Surface to Corner Defect of Reinforcing Bar in Concrete Pier with Permanent Magnet Koki Terasawa 1*, Makoto Hirose 2, Atsushi Hattori 3, Hirotaka Kawano 4 and Toyoaki Miyagawa
More informationBurst pressure estimation of reworked nozzle weld on spherical domes
Indian Journal of Engineering & Materials Science Vol. 21, February 2014, pp. 88-92 Burst pressure estimation of reworked nozzle weld on spherical domes G Jegan Lal a, Jayesh P a & K Thyagarajan b a Cryo
More informationLab Section Date. ME4751 Air Flow Rate Measurement
Name Lab Section Date ME4751 Air Flow Rate Measurement Objective The objective of this experiment is to determine the volumetric flow rate of air flowing through a pipe using a Pitot-static tube and a
More informationDiscrete Element Modelling of a Reinforced Concrete Structure
Discrete Element Modelling of a Reinforced Concrete Structure S. Hentz, L. Daudeville, F.-V. Donzé Laboratoire Sols, Solides, Structures, Domaine Universitaire, BP 38041 Grenoble Cedex 9 France sebastian.hentz@inpg.fr
More informationVane pump theory for mechanical efficiency
1269 Vane pump theory for mechanical efficiency Y Inaguma 1 and A Hibi 2 1 Department of Steering Engineering, Toyoda Machine Works Limited, Okazaki, Japan 2 Department of Mechanical Engineering, Toyohashi
More informationSolution The light plates are at the same heights. In balance, the pressure at both plates has to be the same. m g A A A F A = F B.
43. A piece of metal rests in a toy wood boat floating in water in a bathtub. If the metal is removed from the boat, and kept out of the water, what happens to the water level in the tub? A) It does not
More informationDesign of structural components and radial-build for FFHR-d1
Japan-US Workshop on Fusion Power Plants and Related Advanced Technologies with participations from China and Korea February 26-28, 2013 at Kyoto University in Uji, JAPAN 1 Design of structural components
More informationDEVELOPMENT OF TEST GUIDANCE FOR COMPACT TENSION FRACTURE TOUGHNESS SPECIMENS CONTAINING NOTCHES INSTEAD OF FATIGUE PRE-CRACKS
Transactions, SMiRT-23 Division II, Paper ID 287 Fracture Mechanics and Structural Integrity DEVELOPMENT OF TEST GUIDANCE FOR COMPACT TENSION FRACTURE TOUGHNESS SPECIMENS CONTAINING NOTCHES INSTEAD OF
More informationNAME: Given Formulae: Law of Cosines: Law of Sines:
NME: Given Formulae: Law of Cosines: EXM 3 PST PROBLEMS (LESSONS 21 TO 28) 100 points Thursday, November 16, 2017, 7pm to 9:30, Room 200 You are allowed to use a calculator and drawing equipment, only.
More informationStress Strain Elasticity Modulus Young s Modulus Shear Modulus Bulk Modulus. Case study
Stress Strain Elasticity Modulus Young s Modulus Shear Modulus Bulk Modulus Case study 2 In field of Physics, it explains how an object deforms under an applied force Real rigid bodies are elastic we can
More information9 MECHANICAL PROPERTIES OF SOLIDS
9 MECHANICAL PROPERTIES OF SOLIDS Deforming force Deforming force is the force which changes the shape or size of a body. Restoring force Restoring force is the internal force developed inside the body
More informationmy!wind Ltd 5 kw wind turbine Static Stability Specification
my!wind Ltd 5 kw wind turbine Static Stability Specification 1 P a g e 0 3 / 0 4 / 2 0 1 4 Contents Contents... 2 List of Changes... 2 Appendixes... 2 General remarks... 3 1. Introduction... 4 2. Geometry...
More informationEXPERIMENT 2-6. e/m OF THE ELECTRON GENERAL DISCUSSION
Columbia Physics: Lab -6 (ver. 10) 1 EXPERMENT -6 e/m OF THE ELECTRON GENERAL DSCUSSON The "discovery" of the electron by J. J. Thomson in 1897 refers to the experiment in which it was shown that "cathode
More informationMECHANICS OF MATERIALS
STATICS AND MECHANICS OF MATERIALS Ferdinand P. Beer E. Russell Johnston, Jr, John T. DeWolf David E Mazurek \Cawect Mc / iur/» Craw SugomcT Hilt Introduction 1 1.1 What is Mechanics? 2 1.2 Fundamental
More information22 Which of the following correctly defines the terms stress, strain and Young modulus? stress strain Young modulus
PhysicsndMathsTutor.com Which of the following correctly defines the terms stress, strain and Young modulus? 97/1/M/J/ stress strain Young modulus () x (area) (extension) x (original length) (stress) /
More informationPES Institute of Technology
PES Institute of Technology Bangalore south campus, Bangalore-5460100 Department of Mechanical Engineering Faculty name : Madhu M Date: 29/06/2012 SEM : 3 rd A SEC Subject : MECHANICS OF MATERIALS Subject
More informationNumerical simulation the bottom structures. grounding test by LS-DYNA
5 th European LS-DYNA Users Conference Methods and Techniques (3) Numerical simulation the bottom structures grounding test by LS-DYNA Ainian Zhang Graduate School of Frontier Sciences, The University
More informationRESIDUAL STRESS MEASUREMENT IN STEEL BEAMS USING THE INCREMENTAL SLITTING TECHNIQUE
659 RESIDUAL STRESS MEASUREMENT IN STEEL BEAMS USING THE INCREMENTAL SLITTING TECHNIQUE DZL Hodgson 1, DJ Smith 1, A Shterenlikht 1 1 Department of Mechanical Engineering, University of Bristol University
More informationFEM Analysis of Punching-Process in Consideration of Micro Die Wear
FEM Analysis of Punching-Process in Consideration of Micro Die Wear Takashi Ueda 1,a, Takashi Iizuka 1 and Shinichi Enoki 2 1 Department of Mechanical and System Engineering, Kyoto Institute of Technology,
More informationKINGS COLLEGE OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING QUESTION BANK. Subject code/name: ME2254/STRENGTH OF MATERIALS Year/Sem:II / IV
KINGS COLLEGE OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING QUESTION BANK Subject code/name: ME2254/STRENGTH OF MATERIALS Year/Sem:II / IV UNIT I STRESS, STRAIN DEFORMATION OF SOLIDS PART A (2 MARKS)
More informationMechanical Behaviors of Cylindrical Retaining Structures in Ultra-deep Excavation
Mechanical Behaviors of Cylindrical Retaining Structures in Ultra-deep Excavation Pengfei Xu Tongji University August 4, 2015 Outline Introduction Two circular excavations for anchorage foundations 3D
More informationBurst Pressure Prediction of Multiple Cracks in Pipelines
IOP Conference Series: Materials Science and Engineering OPEN ACCESS Burst Pressure Prediction of Multiple Cracks in Pipelines To cite this article: N A Razak et al 2013 IOP Conf. Ser.: Mater. Sci. Eng.
More informationStudy of Pile Interval of Landslide Restraint Piles by Centrifuge Test and FEM Analysis
Disaster Mitigation of Debris Flows, Slope Failures and Landslides 113 Study of Pile Interval of Landslide Restraint Piles by Centrifuge Test and FEM Analysis Yasuo Ishii, 1) Hisashi Tanaka, 1) Kazunori
More informationME 243. Mechanics of Solids
ME 243 Mechanics of Solids Lecture 2: Stress and Strain Ahmad Shahedi Shakil Lecturer, Dept. of Mechanical Engg, BUET E-mail: sshakil@me.buet.ac.bd, shakil6791@gmail.com Website: teacher.buet.ac.bd/sshakil
More informationStructural Analysis I Chapter 4 - Torsion TORSION
ORSION orsional stress results from the action of torsional or twisting moments acting about the longitudinal axis of a shaft. he effect of the application of a torsional moment, combined with appropriate
More informationINCREASING RUPTURE PREDICTABILITY FOR ALUMINUM
1 INCREASING RUPTURE PREDICTABILITY FOR ALUMINUM Influence of anisotropy Daniel Riemensperger, Adam Opel AG Paul Du Bois, PDB 2 www.opel.com CONTENT Introduction/motivation Isotropic & anisotropic material
More informationSamantha Ramirez, MSE. Stress. The intensity of the internal force acting on a specific plane (area) passing through a point. F 2
Samantha Ramirez, MSE Stress The intensity of the internal force acting on a specific plane (area) passing through a point. Δ ΔA Δ z Δ 1 2 ΔA Δ x Δ y ΔA is an infinitesimal size area with a uniform force
More information**********************************************************************
Department of Civil and Environmental Engineering School of Mining and Petroleum Engineering 3-33 Markin/CNRL Natural Resources Engineering Facility www.engineering.ualberta.ca/civil Tel: 780.492.4235
More informationDetermine the resultant internal loadings acting on the cross section at C of the beam shown in Fig. 1 4a.
E X M P L E 1.1 Determine the resultant internal loadings acting on the cross section at of the beam shown in Fig. 1 a. 70 N/m m 6 m Fig. 1 Support Reactions. This problem can be solved in the most direct
More informationQUESTION BANK ENGINEERS ACADEMY. PL 4Ed d. Ed d. 4PL Ed d. 4Ed d. 42 Axially Loaded Members Junior Engineer
NGINRS CDMY xially oaded Members Junior ngineer QUSTION BNK 1. The stretch in a steel rod of circular section, having a length subjected to a tensile load P and tapering uniformly from a diameter d 1 at
More informationQUESTION BANK DEPARTMENT: CIVIL SEMESTER: III SUBJECT CODE: CE2201 SUBJECT NAME: MECHANICS OF SOLIDS UNIT 1- STRESS AND STRAIN PART A
DEPARTMENT: CIVIL SUBJECT CODE: CE2201 QUESTION BANK SEMESTER: III SUBJECT NAME: MECHANICS OF SOLIDS UNIT 1- STRESS AND STRAIN PART A (2 Marks) 1. Define longitudinal strain and lateral strain. 2. State
More informationThermal load-induced notch stress intensity factors derived from averaged strain energy density
Available online at www.sciencedirect.com Draft ScienceDirect Draft Draft Structural Integrity Procedia 00 (2016) 000 000 www.elsevier.com/locate/procedia 21st European Conference on Fracture, ECF21, 20-24
More informationThe Dynamical Loading of the WWER440/V213 Reactor Pressure Vessel Internals during LOCA Accident in Hot and Cold Leg of the Primary Circuit
The Dynamical Loading of the WWER440/V213 Reactor Pressure Vessel Internals during LOCA Accident in Hot and Cold Leg of the Primary Circuit ABSTRACT Peter Hermansky, Marian Krajčovič VUJE, Inc. Okružná
More informationInfluence of residual stresses in the structural behavior of. tubular columns and arches. Nuno Rocha Cima Gomes
October 2014 Influence of residual stresses in the structural behavior of Abstract tubular columns and arches Nuno Rocha Cima Gomes Instituto Superior Técnico, Universidade de Lisboa, Portugal Contact:
More informationVisualization of flow pattern over or around immersed objects in open channel flow.
EXPERIMENT SEVEN: FLOW VISUALIZATION AND ANALYSIS I OBJECTIVE OF THE EXPERIMENT: Visualization of flow pattern over or around immersed objects in open channel flow. II THEORY AND EQUATION: Open channel:
More informationChapter 4-b Axially Loaded Members
CIVL 222 STRENGTH OF MATERIALS Chapter 4-b Axially Loaded Members AXIAL LOADED MEMBERS Today s Objectives: Students will be able to: a) Determine the elastic deformation of axially loaded member b) Apply
More informationThermohydrodynamic Lubrication Characteristics of High-Speed Tilting Pad Journal Bearings
Thermohydrodynamic Lubrication Characteristics of High-Speed Tilting Pad Journal Bearings OGATA Hideki : Manager, Vibration Engineering & Tribology Department, Research Laboratory, Corporate Research &
More informationDETERMINING THE STRESS PATTERN IN THE HH RAILROAD TIES DUE TO DYNAMIC LOADS 1
PERIODICA POLYTECHNICA SER. CIV. ENG. VOL. 46, NO. 1, PP. 125 148 (2002) DETERMINING THE STRESS PATTERN IN THE HH RAILROAD TIES DUE TO DYNAMIC LOADS 1 Nándor LIEGNER Department of Highway and Railway Engineering
More informationMechanical behavior of tubular welded T-joints with circular and elliptical cross-sections
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X, Volume 9, Issue 6 (Nov. - Dec. 2013), PP 35-39 Mechanical behavior of tubular welded T-joints with circular
More informationMECE 3321: MECHANICS OF SOLIDS CHAPTER 5
MECE 3321: MECHANICS OF SOLIDS CHAPTER 5 SAMANTHA RAMIREZ TORSION Torque A moment that tends to twist a member about its longitudinal axis 1 TORSIONAL DEFORMATION OF A CIRCULAR SHAFT Assumption If the
More informationPERIYAR CENTENARY POLYTECHNIC COLLEGE PERIYAR NAGAR - VALLAM THANJAVUR. DEPARTMENT OF MECHANICAL ENGINEERING QUESTION BANK
PERIYAR CENTENARY POLYTECHNIC COLLEGE PERIYAR NAGAR - VALLAM - 613 403 - THANJAVUR. DEPARTMENT OF MECHANICAL ENGINEERING QUESTION BANK Sub : Strength of Materials Year / Sem: II / III Sub Code : MEB 310
More informationPrediction of dynamic behavior of workpieces in ultrasonic plastic welding
Prediction of dynamic behavior of workpieces in ultrasonic plastic welding Takao HIRAI** Fumiyasu KURATANI** Tatsuya YOSHIDA** and Saiji WASHIO*** **Department of Mechanical Engineering, Graduate School
More information