FINITE STRAIN ANALYSIS OF DEFORMATIONS OF QUASIBRITTLE MATERIAL DURING MISSILE IMPACT AND PENETRATION

Zdenĕk P. Bažant*, Mark D. Adley, Yuyin Xiang*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The conference presentation deals with three problems involved in finite element analysis of the impact, of missiles into reinforced concrete walls and their penetration through the walls: (1) Formulation of the constitutive law for complex nonlinear triaxial behavior of concrete, including the strain-softening damage; (2) extension of the formulation to very large finite strains; and (3) application of the model in dynamic finite element analysis. Only problem (2) is discussed in some detail in this brief paper. Because the Biot strain tensor has a clear physical meaning even for very large finite strains, its use is preferable in the fitting of complex triaxial test data. It is shown that the constitutive relation can be conveniently formulated as a relation of the Biot strain tensor to the back-rotated Cauchy stress tensor, and the justification of this form of the constitutive relation is given.

Original languageEnglish (US)
Title of host publicationAdvances in Failure Mechanisms in Brittle Materials
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages163-169
Number of pages7
ISBN (Electronic)9780791815519
DOIs
StatePublished - 1996
EventASME 1996 International Mechanical Engineering Congress and Exposition, IMECE 1996 - Atlanta, United States
Duration: Nov 17 1996Nov 22 1996

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume1996-F

Conference

ConferenceASME 1996 International Mechanical Engineering Congress and Exposition, IMECE 1996
Country/TerritoryUnited States
CityAtlanta
Period11/17/9611/22/96

Funding

Acknowledgment: Partial financial support under contract 0650-350-C403 between Waterways Experiment Station (WES), Vicksburg, Mississippi, and Northwestern University (monitored by Dr. J. Zelasko) is gratefully acknowledged. Additional partial funding for finite strain tests of concrete to be reported at the Conference was obtained from the ACBM Center at Northwestern University.

ASJC Scopus subject areas

  • Mechanical Engineering

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