Progressive Failure Analysis of Laminated Composite Structures Arafat Islam Khan Dissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Aerospace Engineering Rakesh K. Kapania, Chair Romesh C. Batra, Co-Chair Eric R. Johnson Gary D. Seidel January 20, 2015 Blacksburg, Virginia Keywords: Composites, Progressive Failure, Puck and Schürmann Failure Criteria, USDFLD, Laminated Structure Copyright 2015, Arafat Islam Khan