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

*Corresponding author for this work

Research output: Contribution to journalArticle

18 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 (US)
Pages (from-to)1153-1174
Number of pages22
JournalEngineering Fracture Mechanics
Volume77
Issue number7
DOIs
StatePublished - May 1 2010

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Microstructure
Debonding
Micromechanics
Hardening
Composite materials

Keywords

  • Cohesive zone model
  • Micromechanics (Mori-Tanaka method)
  • PPR model
  • Particle/matrix debonding
  • Upscaling

ASJC Scopus subject areas

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

Cite this

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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).",
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On the constitutive relation of materials with microstructure using a potential-based cohesive model for interface interaction. / Ngo, Duc; Park, Kyoungsoo; Paulino, Glaucio H.; Huang, Yonggang.

In: Engineering Fracture Mechanics, Vol. 77, No. 7, 01.05.2010, p. 1153-1174.

Research output: Contribution to journalArticle

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AU - Paulino, Glaucio H.

AU - Huang, Yonggang

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