Development of Models of Crack Growth in Composites
Research Advisor : Dennis N. Coon

Crack growth is the dominant mechanism in fatigue of ceramic composites in high-temperature, load-bearing applications.  The objective of this research project is to numerical model chemical attack of bridging fibers.  As the chemical attack proceeds, the number of bridging fibers decreases, and the crack-tip destabilizes.  As a result, the crack growth occurs until sufficient numbers of bridging fibers are developed to stabilize the crack-tip.  In this manner, sequential processes of chemical attack and crack growth lead to fatigue-like behavior.  This project is an excellent research opportunity for prospective graduate students interested in mechanical behavior, computational methods, and materials.