Study on Welding Spot Layout for a Car B-Pillar Based on the Welding Spot Fatigue Life

Abstract:

Based on the structural characteristics of a car B-pillar, the scheme of equal spacing layout on the welding spot partitions is adopted as the initial welding spots layout. The same constraints and loads are conducted on the models with different welding spot spacing. The highest strain values are calculated and analyzed around the welding spot areas. The fatigue life of the welding spot is calculated via the all-strain-life prediction model. The changing rule of the welding spot fatigue life under different spot spacing is obtained by the method of curve fitting. The optimal layout of the welding spots for the B-pillar is gotten finally. The layout is verified feasibility by comparing with that of the original model.

• Periodical: Applied Mechanics and Materials (Volumes 543-547)
• Pages: 219-223
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.543-547.219
• Online since: March 2014
• Authors: An Cui*, Zhi Yong Wang, Yong Chen, Shi Zhan Zhang
• Keywords: Car B-Pillar, Fatigue Life of Welding Spot, Layout of Welding Spot, Prediction Model

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