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.
Development of Roof Crush Analysis Technique Using Simple Model with Plastic Hinge Concept
Sae Technical Papers
International Congress & Exposition ; 1996
1996-02-01
Aufsatz (Konferenz)
Englisch
Springs , Drag , Plastics , Body structures , Vehicle roofs
Development of roof crush analysis technique using simple model with plastic hinge concept
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