Effect of Hygrothermal Stresses on Interface Fracture

Author

Lokeswarappa R. Dharani, Missouri University of Science and TechnologyFollow
H. Tang

Editor(s)

Birman, V. (Victor) and Hui, David

Abstract

A micromechanics analytical model is developed for predicting the stresses and displacements for a two-dimensional region made up of fiber and matrix phases and containing a crack at the interface. The region is subjected to both hygrothermal and mechanical loading. The two dimensional constitutive equations for an orthotropic linear elastic material are used to represent the stress-displacement relations. A criterion based on energy release rate is developed to determine whether an interface crack in a bimaterial will deflect into the interface or penetrate through it once the crack reaches the interface. The modes of crack propagation, crack deflection and penetration, are presented for different material properties.

Recommended Citation

L. R. Dharani and H. Tang, "Effect of Hygrothermal Stresses on Interface Fracture," American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, American Society of Mechanical Engineers (ASME), Jan 1990.

Meeting Name

American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP (1990, Dallas, TX, USA)

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1990 American Society of Mechanical Engineers (ASME), All rights reserved.

Publication Date

01 Jan 1990