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Crash Analysis Methodology for Brittle Material
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English
Abstract
A constitutive model for semi-brittle material such as aluminum is developed and implemented in the crash code FCRASH for crash analysis of aluminum structures. The model is formulated using the framework of elasto-plastic damage mechanics theory and as such can account for crack induced anisotropy and property degradation within a shell element. The model has been used to analyze the frontal impact of an aluminum vehicle. The results obtained from the analysis showed an excellent agreement with the test.
Authors
Citation
Faruque, M. and Marvasti, M., "Crash Analysis Methodology for Brittle Material," SAE Technical Paper 951082, 1995, https://doi.org/10.4271/951082.Also In
References
- Belytschko, T. Lin, J. I. Tsay, C. S. “Explicit Algorithms for the Nonlinear Dynamics of Shells,” Computer Methods in Applied Mechanics and Engineering 42 1984 225 251
- Faruque, M. O. Wu, H. “Damage Mechanics Based Constitutive Model: Application in Crash Analysis of Aluminum Components,” in Damage Mechanics and Localization Ju J. W. Valanis K. C. ASME WAM Anaheim, California 142 34 Nov. 8-13 1993 41 52
- Kosloff, D. Frazier, G. A. “Treatment of Hourglass Patterns in Low Order Finite Element Codes,” Int. J. of Numerical and Analytical Methods in Geomechanics 2 1978 57 72