Affiliation:
1. Mechanical and Aerospace Engineering Department 315 Engineering Bldg. West Virginia University Morgantown, WV 26506-6101
2. Science Applications International Corporation 1710 Goodridge Dr. McLean, VA 22102
Abstract
A model to predict the high temperature ultimate strength of a continuous fiber metal matrix composite (CFMMC) has been developed. The model extends the work of Rosen by including high temperature processes such as matrix creep, fiber-matrix de bond, and the effects of randomly spaced fiber breaks which typically exist in the MMC prior to loading. A finite element model (FEM), developed in the form of a representative volume element (RVE), is used to calculate the time-dependent stress field surrounding a fiber break. Variables included in the calculation are process-related parameters such as the fiber diameter, the fiber-matrix interface strength, and interface roughness. Statistical analysis is used to infer the strength of a large composite sample from the stress analysis of a single break provided by the FEM.
Subject
Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites
Cited by
16 articles.
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