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Mechanics of failure of composite materialsComposite materials are both inhomogeneous and anisotropic. Both of these characteristics affect the internal stress distributions since inhomogeneity involves variations in both strength and stiffness. The fracture mechanics of nonuniform materials are considered, taking into account the effect of nonuniformity on stress distributions near the crack tip, predicted yield zones in nonuniform and uniform materials, and the fracture of a center-notched unidirectional specimen. The mechanics of failure of laminated materials is discussed. It is found that the development of damage in a laminate with increasing load and, possibly, increasing numbers of cycles of loading is peculiar to the laminate in question, i.e., the material system, the stacking sequence, and the geometry. Approaches for monitoring damage development are also described.
Document ID
19790033524
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Reifsnider, K. L.
(Virginia Polytechnic Institute and State University Blacksburg, Va., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Composite Materials
Meeting Information
Meeting: Fracture mechanics; Tenth Symposium on Naval Structural Mechanics
Location: Washington, DC
Start Date: September 11, 1978
End Date: September 13, 1978
Accession Number
79A17537
Funding Number(s)
CONTRACT_GRANT: F33615-77-C-5044
CONTRACT_GRANT: NASA-314917
CONTRACT_GRANT: NSF ENG-76-80213
Distribution Limits
Public
Copyright
Other

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