Modeling of Strength and Toughness of Ceramic Matrix Composites Based on Discrete Fiber Distribution
Abstract
The prime objective of the project was development of a practically reliable model that would help to understand the process taking place and the mechanics of failure development in ceramic matrix composites. During the course of the project, we developed a micromechanical model which could address a variety of aspects of the composite behavior on macroscale. The model uses the mechanical properties of composite components, interfaces, and their interactions on microscale? to address the resulting macromechanical behavior of the composite. Our approach was based on a recently developed effective analytical method for analysis of failure development in composites using a discrete distribution of the reinforcing components. This new method enabled us to extract the information essential for fracture analysis from the composite system at any intermediate step of failure development, and to evaluate the specific contribution by each reinforcing component in the composite. This analysis of a composite system using discrete fiber distribution allows an optimization of the composite system for the most desirable mechanical properties. In the course of this project, we successfully developed this methodology for application to ceramic matrix composites reinforced by unidirectional fibers, extended the analytical development for application to a ceramic matrix reinforced by ductile particles, and developed the analysis of a variety of other composite systems, including metal matrix composites.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2000
- Accession Number
- ADA379273
Entities
People
- Asher Rubinstein
Organizations
- Tulane University of Louisiana