Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Performance Evaluation for the Methods of Spot Weld Modeling Considering Durability

피로 해석을 고려한 점용접부 모델링 기법의 성능 평가

  • 변형배 (GM 대우 차체 설계팀) ;
  • 이병채 (한국과학기술원 기계공학과) ;
  • 주병현 (한국과학기술원 기계공학과)
  • Published : 2005.08.01
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Abstract

Many methods of spot weld modeling have been developed to increase efficiency and guarantee the robustness fer the CAE analysis. In this research they are introduced and the performance is compared in a viewpoint of stiffness and durability. For evaluating the performance a multi-spot welded specimen as well as two single welded specimen is used. The results show that the CWELD element considering 'patch to patch' is stiffer than other modeling methods in stiffness and more conservative in durability. It also offers simple modeling and since it is much easier to maintain the orrhogonality of the BAR element expressing a nugget, we can obtain more exact reaction forces and moments in a nugget. Therefore the CWELD element is the most excellent in the assessment of durability.

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References

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Cited by

  1. Development of numerical analysis model for resistance spot welding of automotive steel vol.31, pp.7, 2017, https://doi.org/10.1007/s12206-017-0634-y