Journal Published Online: 02 March 1992
Volume 14, Issue 1

Fiber-Matrix Interphase Effects upon Transverse Behavior in Metal-Matrix Composites



To develop reasonable analytical models and to understand better how the integrity of the fiber-matrix interface in high temperature titanium-based metal-matrix composites affects the overall transverse normal characteristics, a parametric study of various fiber-matrix interface conditions was performed. Analysis methods included both a simplified one-dimensional mathematical model and a finite element analysis using MSC/NASTRAN. First, both strong (perfectly bonded) and vanishingly weak (unbonded) interfaces were examined. Subsequently, to provide for partial bonding, a model that used an elastic-plastic interphase zone between the fiber and matrix was examined. It was found that the variation in the plastic properties (that is, yield stress and strain hardening) of this interphase zone provided the flexibility to model any level of interfacial bonding.

Author Information

Robertson, DD
USAF, Air Force Institute of Technology, Wright-Patterson AFB, OH
Mall, S
Air Force Institute of Technology, Wright-Patterson AFB, OH
Pages: 9
Price: $25.00
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Stock #: CTR10077J
ISSN: 0884-6804
DOI: 10.1520/CTR10077J