| FATIGUE AND BUCKLING ANALYSIS OF AUTOMOTIVE COMPONENTS CONSIDERING FORMING AND WELDING EFFECTS |
| K. T. LEE1, C. S. PARK1, H. Y. KIM2 |
1AUSTEM Co., Ltd., A.R&D Center, 5, Bodojin-ro 42beon-gil, Seo-gu, Incheon 22847, Korea
2Department of Mechanical and Biomedical Engineering, Kangwon National University, Gangwon 24341, Korea |
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Received: November 24, 2015; Revised: April 19, 1988 Accepted: May 30, 2016. |
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| ABSTRACT |
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Some vehicle components are developed by setting target weights to the gram level at their design stages to accomplish a lightweight design. Recently, there have been many studies that have focused on lightweight design through the use of ultra-high-strength steels. However, a lightweight design can face many challenges if the reliability of the analysis is not also secured at the design stage. Such challenges include difficulties in coupled analyses when the file formats are different among PAM-STAMP, ABAQUS, and NASTRAN. In this study, we developed a mapping interface that enables mapping between the file formats of various software programs. Buckling analysis was coupled to the forming analysis, in which prestrain test data were applied in considering the material’s strain hardening, to evaluate the rigidity of the front lower control arm that controls the wheels and transfers loads. The influence of forming effects on endurance was evaluated, and residual stresses around the weld zone were calculated. A comparison of experimental and analytical results indicated that the proposed analysis was highly reliable. |
| Key Words:
Mapping, Workharding, Heat affect zone, Coupling analysis, Stamping effect |
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Corresponding Author.
H. Y. KIM , Email. 
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