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Development of Roof Crush Analysis Technique Using Simple Model with Plastic Hinge Concept
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English
Abstract
A computational technique for predicting roof crush resistance in the early design stage of vehicle development is presented in this paper. This technique developed a simple nonlinear finite element beam model with several nonlinear spring elements which represent plastic hinge behaviors after bending collapse. In general, these plastic hinge behaviors are apt to occur al each weak area of vehicle body structure. By idealizing actual sections as equivalent simple sections, maximum bending moments are calculated for all weak areas. Predicted results of roof crush resistance arc correlated well with test results.
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Citation
Chun, B., Choi, J., and Kang, S., "Development of Roof Crush Analysis Technique Using Simple Model with Plastic Hinge Concept," SAE Technical Paper 960522, 1996, https://doi.org/10.4271/960522.Also In
References
- Choi J.H. “Standard of the skeleton model” HMC R&D Dept. 1993
- Kecman D. Miles J. “Application of the FEM to the door intrusion and roof crush analysis of a passenger car” SAE 790990 1979
- Kecman D. Suthurst G.D. “Theoretical Determination of the Maximum Bending Strength in Car Body Structure” IMechE C181 53 61 1984
- ABAQUS User's Manual I, II
- ABAQUS Theory Manual