順応形Shifted Integration法によるはりおよび骨組の衝撃崩壊挙動の有限要素解析

概要

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The adaptively shifted integration (ASI) technique is applied to the finite element analysis of dynamic collapse behaviors of impulsively loaded fully clamped beams and framed strcutures subjected to support excitation. The ASI technique is based on the equivalence conditions of standard beam elements and computational discontinuum mechanics models. Numerical integration points for evaluation of an element stiffness matrix are adaptively shifted to optimum positions, depending on the elastic or plastic state of the element. The highest computational efficiency and accuracy can be expected using the ASI technique for the finite element analysis of large-scale frames. The solutions given by the finite element methods with and without the ASI technique are compared to show the validity of the proposed technique.
一般社団法人日本機械学会の論文
1996-09-25