Use of computer simulation models for structural design in vehicle crash will be discussed. A generalized set of needs for crashworthiness analysis is presented with special emphasis on section collapse of plate type box components. An interactive computer program has been developed to assist the designer in selecting the most efficient structural elements and their mode of collapse to meet the automotive requirements for crash energy management. The program predicts the maximum, corner and mean crush strengths of an axially compressed column, and the maximum bending strength and the hinge angle of rotation of a thin wall beam. Reduced section properties following local buckling are calculated as a function of the applied load. Modes of collapse under axial compression and under bending loads can be predicted and the stability thresholds determined. The underlying formulations were derived from stability considerations of a flat plate in compression and were verified by test results of thin wall box beams and columns with various geometry configurations and material properties. The method for implementing this program into a finite element beam-column code for the study of crash behavior of structural systems will be described.


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    Title :

    Computer aided design of thin wall structural elements for crash energy management


    Additional title:

    Rechnergestuetztes Konstruieren duennwandiger Bauelemente zur Auffangung der Aufprallenergie


    Contributors:
    Mahmood, H.F. (author) / Magee, C.L. (author)


    Publication date :

    1982


    Size :

    21 Seiten, 8 Bilder, 3 Tabellen, 15 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Computer Aided Design of Thin Wall Structural Elements for Crash Energy Managements

    Mahmood,H.F. / Magee,C.L. / Ford Motor,US | Automotive engineering | 1982



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