Overload analysis and  J  e ‐based fatigue life prediction of spot‐welded auto seat belt anchors | Zendy

LEE HYUNGIL | Zendy; CHOI JINYONG | Zendy

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Overload analysis and J e ‐based fatigue life prediction of spot‐welded auto seat belt anchors

Author(s) -

LEE HYUNGIL,

CHOI JINYONG

Publication year - 2004

Publication title -

fatigue and fracture of engineering materials and structures

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.887

H-Index - 84

eISSN - 1460-2695

pISSN - 8756-758X

DOI - 10.1111/j.1460-2695.2004.00752.x

Subject(s) - finite element method , structural engineering , welding , modal , engineering , ductility (earth science) , modal analysis , materials science , mechanical engineering , metallurgy , composite material , creep

We demonstrate the validity of J e , which comprehensively describes the effects of specimen geometry and loading type, in predicting the fatigue life of auto seat belt anchor panel. We first simplify the heat‐affected zone model to reduce the number of finite elements. We then establish finite‐element models reflecting the actual overload behaviour of three types of seat belt anchor specimens. Using elaborate finite‐element models, we obtain the effective crack‐driving parameter J e composed of its ductility‐dependent modal components. It is confirmed that the J e concept successfully predicts the fatigue life of multi‐spot‐welded panel structures represented by auto seat belt anchors here.

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