Three-dimensional elasto-plastic heterogeneous media subjected to short transient loads

Peter W. Chung, Raju R. Namburu, Kumar K Tamma

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The asymptotic expansion homogenization (AEH) method has found wide acceptance for the study of heterogeneous structures due to its consolidating features coupling the micro with macro structural analyses. Nearly all of the developments in AEH for practical engineering applications, however, are in the understanding of linear/non-linear structures subjected to quasi-static or static loads. Hence, the emphasis of the present investigation is to develop consistent AEH numerical formulations to address elasto-plastic material response of structures subjected to short transient loading. A second order accurate velocity based explicit time integration method, in conjunction with the AEH method, is employed to account for short transient loads and large deformation nonlinear material response. The applicability of the method is demonstrated for a number of test problems.

Original languageEnglish (US)
Pages (from-to)411-421
Number of pages11
JournalCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume1
StatePublished - Jan 1 1999

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