Development of Roof Crush Analysis Technique Using Simple Model with Plastic Hinge Concept

Paper #:
  • 960522

Published:
  • 1996-02-01
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.
Pages:
7
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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