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Indexed by:期刊论文

Date of Publication:2012-01-01

Journal:ADVANCED COMPOSITES LETTERS

Included Journals:SCIE、EI、Scopus

Volume:21

Issue:1

Page Number:25-31

ISSN No.:0963-6935

Key Words:piezoelectric composite; interface fracture; impact; finite element analysis

Abstract:In this paper, a nonlinear finite element analysis of impact interfacial fracture for a piezoelectric composite is provided. The Newmark method was used to solve the dynamics equation. Virtual crack closure technique is to evaluate the energy release rate of crack tip. Contact elements were set up on crack surface and in the area in contact under impact loading to prevent the penetration between PZT and composite. The response curves of the energy release rate are obtained for piezoelectric composites. Numerical results are provided to show the effect of the piezoelectricity, the applied voltage, the stack sequence of composites and the contact of crack surface on the resulting dynamic energy release rate of piezoelectric composites.