On the constitutive relation of materials with microstructure using a potential-based cohesive model for interface interaction

Duc Ngo, Kyoungsoo Park, Glaucio H. Paulino, Yonggang Huang

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Macroscopic constitutive relationship is estimated by considering the microscopic particle/matrix interfacial debonding. For the interfacial debonding, the PPR potential-based cohesive model is utilized. The extended Mori-Tanaka model is employed for micromechanics, while a finite element-based cohesive zone model is used for the computational model. Both models (theoretical and computational) agree well each other in representing the macroscopic constitutive relationship on the basis of the PPR model. The microscopic interfacial cohesive parameters of the PPR model are estimated from macroscopic composite material behavior. In addition, different microscopic debonding processes are observed with respect to different macroscopic constitutive relationships (e.g. hardening, softening, and snap-back).

Original languageEnglish
Pages (from-to)1153-1174
Number of pages22
JournalEngineering Fracture Mechanics
Volume77
Issue number7
DOIs
Publication statusPublished - 2010 May

Bibliographical note

Funding Information:
The authors acknowledge support from the National Science Foundation (NSF) through Grant #0800805 . Duc Ngo also acknowledges support from Vietnam Education Foundation (VEF). The information presented in this paper is the sole opinion of the authors and does not necessarily reflect the views of the sponsoring agencies. Finally, the authors thank the anonymous reviewers for constructive and thorough revision of the work.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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