Stress Intensity Factor for an Elliptic Inclusion in Orthotropic Laminates Subjected to Freeze-Thaw: Model Verification
Abstract
Verifications and applications of an analytical model developed previously for the calculation of mode-I stress intensity factor of a pre-existing crack in an orthotropic composite structure due to the phase transition of trapped moisture are presented in this paper. The verifications are based on comparisons of the stresses in an elliptic elastic inclusion and the stress intensity factor with a special case of isotropy (for which there exists an analytical solution) and with finite element analysis for the case of orthotropy. The results indicate that the stress state in a slender elliptic elastic inclusion can be used to approximate the stress field at the crack face, which could subsequently be adopted to determine the stress intensity factor. Analyses of the delamination and fatigue life prediction for freeze-thaw cycling are provided as specific applications of the model.
Recommended Citation
S. Roy et al., "Stress Intensity Factor for an Elliptic Inclusion in Orthotropic Laminates Subjected to Freeze-Thaw: Model Verification," Polymers and Polymer Composites, Rapra, Jan 2002.
The definitive version is available at https://doi.org/10.1063/1.1423949
Department(s)
Mechanical and Aerospace Engineering
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2002 Rapra, All rights reserved.
Publication Date
01 Jan 2002