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Residual Forming Effects on Full Vehicle Frontal Impact and Body-in-White Durability Analyses
Technical Paper
2002-01-0640
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Forming of sheet metal structures induces pre-strains, thickness variations, and residual stresses. Pre-strains in the formed structures introduce work hardening effects and change material fatigue properties such as stress-life or strain-life. In the past, crashworthiness and durability analyses have been carried out using uniform sheet thickness and stress- and strain-free initial conditions. In this paper, crashworthiness and durability analyses of hydroformed front rails, stamped engine rails and shock towers on a full vehicle and a Body-In-White structure are performed considering the residual forming effects. The forming effects on the crash performance and fatigue life are evaluated.
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Citation
Chen, G., Liu, S., Knoerr, L., Sato, K. et al., "Residual Forming Effects on Full Vehicle Frontal Impact and Body-in-White Durability Analyses," SAE Technical Paper 2002-01-0640, 2002, https://doi.org/10.4271/2002-01-0640.Also In
References
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