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PREFACE

This book is a much improved version of a set of notes developed for a one-week course taught at the International Center for Mechanical Sciences (CISM) in Udine, Italy, July 21-25, 2005. The support and encouragement of the CISM staff and its Rector, Professor Giulio Maier are gratefully acknowledged for providing the opportunity to bring together different aspects of the problem of impact on composite structures. The opportunity to work with experts in different areas from different countries and to teach a very diverse group of students was also very much appreciated. As the course coordinator, I want to express my thanks to the colleagues who participated in this long term venture: Professor Giovanni Belingardi from the Politecnico di Torino, Italy; Professor Wesley Cantwell from the University of Liverpool, England; Professor Uday Vaidya, University of Alabama-Birmingham, USA, and Professor Ramon Zaera from the University Carlos III, Madrid, Spain. It is also a pleasure to acknowledge the contributions of Professor Jorge Ambrosio from the University of Lisbon, Portugal who taught a portion of the course in Udine. The book is intended for beginning graduate students and practitioners in industry who need an introduction with a strong technical background to this subject, one that enables them to pursue their own research or design activities and to pursue further studies on their own. We have attempted to present a broad range of topics. The two common threads throughout the book are that it deals with structures made of composite materials and that those structures are subjected to impacts. The structures can be part of aircrafts, motor vehicles, or armored military vehicles, for example. The impacts can be tool drops, ballistic projectiles or vehicle crashes. The book examines ways to model the impact event, to determine the size and severity of the damage and discusses general trends observed during experiments. Serge Abrate

CONTENTS

Preface

Introduction to the Mechanics of Composite Materials by S. Abrate .................................................................... 1 Mechanics of Plates by S. Abrate ...................................................................49 Impact Dynamics by S. Abrate ...................................................................71 Impact Response of Laminated and Sandwich Composites by U. K. Vaidya .............................................................97 Vehicle Crashworthiness Design – General Principles and Potentialities of Composite Material Structures by G. Belingardi and G. Chiandussi ................................ 193 The Impact Resistance of Fiber Metal Laminates and Hybrid Materials by W.J. Cantwell, M. Mujib, and R. Day ........................ 265 Ballistic Impacts on Polymer Matrix Composites, Composite Armor, Personal Armor by R. Zaera .................................................................. 305

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