A Micromechanics Model for Rough Interfaces

by M. P. Divakar, Arizona State Univ, Tempe, AZ, USA,
A. Fafitis, Arizona State Univ, Tempe, AZ, USA,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract: A new constitutive model for transfer of interfacial tractions along rough cracks in strain softening composites is presented. The model relates the normal and shearing stresses on the rough crack to the corresponding displacements in terms of the interface strength, contact areas, the contact angle, and the crack closing pressure. The performance of the constitutive model was evaluated by predicting experimental results. The comparison between predicted and experimental results appear to be very satisfactory.

Subject Headings: Cracking | Composite materials | Mathematical models | Constitutive relations | Strain hardening and softening | Shear strength | Shear stress

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