Light Truck Frame Joint Stiffness Study Phase 1 Final Report

More documents

Recommendations

Info

APPENDIX A: ABSTRACTS characteristics and hotspot stresses of comparable T and V specimens. Addition of a loaded out-ofplane branch member of a T-joint increases the strength of the T-joint when the angle between the branches is low, and decreases it when the angle is large. 10. 3D Simulations of Bolted Connections to Unstiffened Columns-I T-Stub Connections Sherbourne, A.N. and Bahaari, M.R. Journal of Constructional Steel Research, Dec. 1996 The paper presents a finite element methodology in a three-dimensional (3D) framework to study numerically the stiffness and strength of the T-stub to unstiffened column flange bolted connection as part of a comprehensive research program to investigate the behavior of endplate bolted connections. In such connections, the axes of rotation of the T-stem and column flange are at right angles; the planes containing the tensile forces are also perpendicular to each other. Therefore, they are highly interactive spatially. The main objective here is to study the applicability of the model to such a connection, so that most of the important features that are not accessible to routine experiments, like prying action and gradual plasticity of components, can be monitored. ANSYS, version 4.4, a largescale general purpose finite element code is selected for this analysis. Initially, the simplest connection with the bolt groups in tension, which is a symmetric T-stub hanger with a single line of bolts paralleled on each side of the web, is considered. Then the T-stub connection to an unstiffened column flange is discussed. 11. Criteria for the Fatigue Assessment of Hollow Structural Section Connections Van Wingerde, A.M.; Packer, J.A.; and Wardenier, J. Journal of Constructional Steel Research, 1995 Discussion of fatigue design criteria is presented for connections between hollow structural sections, based on knowledge gained from an extensive study on the fatigue behavior of 90-T- and X- connections made of square hollow sections. After a general discussion of the various fatigue assessment method available the paper focuses on considerations behind the definition of the hot spot stress. On this basis, the current fatigue design guidelines are discussed. Based on knowledged gained from experiments and having identified the important fatigue design criteria, a hot spot definition is established, together with the outline of a proposal for future fatigue design guidelines of hollow section connections. 12. Study on Residual Stress Relief of Welded Structural Steel Joints Weng, C.C. and Chen, J.J. Journal of Materials in Civil Engineering; May 1993 This paper presents the results obtained from the residual stress relief tests on 21 welded structural steel joints: 17 butt-welded, two tee, and two corner joint specimens. The A572 grade 50 structural steel plates of two different thicknesses, 15 and 32mm, were used. All specimens were welded by the submerged arc welding (SAW) process and were designed according to the prequalified welded joints specified by the American Welding Society. In this study, a controlled low-temperature stress-relief method was used for residual stress relief. The experimental result show that by using an appropriate combination of the heating temperature, heating distance, and cooling method, the original hightensile residual stresses near the weld of the joint can be reduced effectively. The residual stresses before and after the heat treatment were measured by using the blind hold-drilling method. A reduction of more than 50% of the original tensile residual stresses adjacent to the weld was observed. Report: A/SP-005-1 Light Truck Frame Joint Study 85
APPENDIX B: MATERIAL TESTING REPORT Samples of each material (coupons) were removed from each frame member and sent to a local material testing laboratory. The samples were tested to failure in a standard ASTM material testing rig. Plots of stress v strain for each sample are plotted for the full range of the material. An additional plot of the linear range of the material is also included for each sample. A list of coupons and their origin is below. Coupon #1 Coupon #2 Coupon #3 Coupon #4 Coupon #5 Coupon #6 Coupon #7 Coupon #8 Coupon #9 Coupon #10 Joint 5 Inner Side rail Joint 5 Outer Side rail Joint 5 Crossmember Joint 4 Side rail Joint 4 Crossmember Joint 3 Side rail Joint 3 Crossmember Joint 2 Side rail Joint 1 Side rail Joint 1 Crossmember Report: A/SP-005-1 Light Truck Frame Joint Study 86
Page 1 and 2:
Light Truck Frame Joint Stiffness S
Page 3 and 4:
EXECUTIVE SUMMARY Background There
Page 5 and 6:
TABLE OF CONTENTS Introduction ....
Page 7 and 8:
LITERATURE SEARCH Introduction A li
Page 9 and 10:
LITERATURE SEARCH Joint Stiffness T
Page 11 and 12:
FINITE ELEMENT ANALYSIS Introductio
Page 13 and 14:
FINITE ELEMENT ANALYSIS Defining th
Page 15 and 16:
FINITE ELEMENT ANALYSIS Load Applie
Page 17 and 18:
FINITE ELEMENT ANALYSIS z L: Load F
Page 19 and 20:
FINITE ELEMENT ANALYSIS Table 1: An
Page 21 and 22:
TESTING PROCEDURE Test Repeatabilit
Page 23 and 24:
TESTING PROCEDURE Joints 1 - 4 Pneu
Page 25 and 26:
TESTING PROCEDURE Joint 1 - X Direc
Page 27 and 28:
TESTING PROCEDURE Joint 1 - Torsion
Page 29 and 30:
Page 31 and 32:
TESTING PROCEDURE Joint 2 - Torsion
Page 33 and 34:
Page 35 and 36: TESTING PROCEDURE Joint 3 - Torsion
Page 37 and 38: TESTING PROCEDURE Joint 4 - X Direc
Page 39 and 40: TESTING PROCEDURE Joint 4 - Torsion
Page 41 and 42: TESTING PROCEDURE Joint 5 - Hanging
Page 43 and 44: TESTING PROCEDURE Joint 5 - Z Direc
Page 45 and 46: TESTING PROCEDURE Joint Stiffness S
Page 47 and 48: TESTING PROCEDURE Table 2: Test Joi
Page 49 and 50: CORRELATION Table 3: Test and Analy
Page 51 and 52: SENSITIVITY STUDY The influence of
Page 53 and 54: SENSITIVITY STUDY C- Channel Gage C
Page 55 and 56: SENSITIVITY STUDY C- Channel Gage C
Page 57 and 58: SENSITIVITY STUDY Crossmember Gage
Page 59 and 60: JOINT STIFFNESS TOOLBOX Introductio
Page 61 and 62: JOINT STIFFNESS TOOLBOX Notes: * Mo
Page 71 and 72: APPENDIX A: ABSTRACTS Read Articles
Page 73 and 74: APPENDIX A: ABSTRACTS 7. SCF Design
Page 75 and 76: APPENDIX A: ABSTRACTS 15. Deformati
Page 77 and 78: APPENDIX A: ABSTRACTS reasonable ag
Page 79 and 80: APPENDIX A: ABSTRACTS frequency err
Page 81 and 82: APPENDIX A: ABSTRACTS 36. Dynamic R
Page 83 and 84: APPENDIX A: ABSTRACTS 43. Behavior
Page 85: APPENDIX A: ABSTRACTS 6. Connection
Page 89 and 90: APPENDIX B: MATERIAL TESTING REPORT
Page 111 and 112: APPENDIX C: TEST RESULTS Joint 1 Fo
Page 113 and 114: APPENDIX C: TEST RESULTS Joint 2 Ve
Page 115 and 116: APPENDIX C: TEST RESULTS Joint 3 To
Page 117 and 118: APPENDIX C: TEST RESULTS Joint 5 Fo
Page 119 and 120: APPENDIX D: DIAGRAM OF JOINT IN TES
Page 121 and 122: APPENDIX D: DIAGRAM OF JOINT IN TES
Page 123: APPENDIX D: DIAGRAM OF JOINT IN TES
show all

Light Truck Frame Joint Stiffness Study Phase 1 Final Report

Create successful ePaper yourself

Delete template?

Save as template?