Abstract
A two-dimensional elastic-plastic dynamic finite element analysis of the precracked Charpy V-notch specimen is performed using the MARC finite element computer program. The results of the analysis are in good agreement with data produced from the instrumented precracked Charpy test. This agreement verifies the computational fracture. The analytical procedure developed will assist in the formulation and evaluation of ductile fracture criteria and the application of these criteria to pressure vessel and structural analysis.
Résumé
Une analyse à deux dimensions par éléments finis en conditions dynamiques électro-plastiques d'éprouvettes de résiliences Charpy V préfissurées a été effectuée en utilisant le programme de calcul par élements finis MARC. Les résultats de l'analyse sont en bon accord avec les données résultant d'essais sur des éprouvettes Charpy V préfissurées et instrumentées. Cet accord permet de vérifier les techniques de calcul pour ce type d'analyse, et procure une vue beaucoup plus détaillée du phénomène de la rupture ductile. La procédure d'analyse développée contribuera à formuler et évaluer les critères de rupture ductile et à les appliquer à l'étude des récipients sous pression et des structures.
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Ayres, D.J. Dynamic plastic analysis of ductile fracture — the charpy specimen. Int J Fract 12, 567–578 (1976). https://doi.org/10.1007/BF00034642
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DOI: https://doi.org/10.1007/BF00034642