THE ANISOTROPIC MECHANICAL-PROPERTIES OF A TI MATRIX COMPOSITE REINFORCED WITH SIC FIBERS

The anisotropic mechanical properties of a Ti alloy composite reinforced with SiC fibers have been investigated and rationalized using analytical models. The appropriate material model for this composite involves the following features: an interface that debonds and slides, a flaw insensitive ductile matrix, and high-strength elastic fibers subject to residual compressive stress caused by thermal expansion mismatch. This model is broadly consistent with the longitudinal, transverse, and shear properties of the composite.