A computational investigation of crack evolution and interactions of microcracks and particles in particle-reinforced brittle composites

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A computational approach to the investigation of crack evolution and interaction effects of microcracks and particles on the overall behavior of particle-reinforced brittle composites (PRBCs) is presented. To account for interactions of microcracks and particles, and their effects on the overall mechanical behavior, approximate solutions of a micromechanical model considering second-order, ensemble-volume averaged perturbations are employed. By combining the micromechanical framework with a fracture-mechanics based damage model, an evolutionary damage model of PRBCs is subsequently developed and the evolutionary damage model is implemented into a finite element code. The proposed computational damage model is exercised from benchmark examples on PRBCs to illustrate the capability of the proposed damage models for predicting the progressive crack evolution in PRBCs. (C) 2003 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2004-06
Language
ENG
Article Type
Article
Keywords

EFFECTIVE ELASTIC-MODULI; EFFECTIVE ELASTOPLASTIC BEHAVIOR; MICROMECHANICAL DAMAGE MODEL; DUCTILE MATRIX COMPOSITES; CONSTITUTIVE MODEL; SOLIDS; INHOMOGENEITIES; FRACTURE; ARRAYS; ZONE

Citation

COMPOSITE STRUCTURES, v.64, no.3-4, pp.419 - 431

ISSN
0263-8223
DOI
10.1016/j.compstruct.2003.09.043
URI
http://hdl.handle.net/10203/7573
Appears in Collection
CE-Journal Papers(저널논문)

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