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1 Applied Impact Mechanics Atma vaa idameva ekaagra AsInnaanyatkinchana mishat. Sa Aikshata. Lokaannu srujaa iti All this (world) was indeed the self in the beginning. Nothing else winked. He (self) desired. Why don t I create this world? Atam vaa idameva ekaagra AsInnaanyatkinchana Aikshata. Lokaannu srujaa this (world) was indeed the self in the beginning. Nothing else (self) desired. Why don t create this world? Aitareyopanisad - 1-1Dr. C. Lakshmana RaoProfessorDepartment of Applied MechanicsIndian Institute of Technology MadrasChennai 600036Dr.

2 V. NarayanamurthyScientist Research Centre ImaratDefence Research & Development OrganisationHyderabad 500069Dr. K. R. Y. SimhaProfessorDepartment of Mechanical EngineeringIndian Institute of ScienceBangalore 560012 ane books pvt . Impact MechanicsApplied Impact MechanicsC. Lakshmana Rao, V. Narayanamurthy, K. R. Y. Simha Authors 2016 This Edition Published byJohn Wiley & Sons LtdThe Atrium, Southern GateChichester, West Sussex PO19 8SQ United KingdomTel : +44 (0)1243 779777 Fax : +44 (0)1243 775878e-mail : : distribution in rest of the world other than the Indian sub-continent and AfricaUnder licence from: ane books pvt .

3 Parwana Bhawan, 1st Floor24 Ansari Road, Darya Ganj, New Delhi -110 002, IndiaTel: +91 (011) 2327 6843-44, 2324 6385 Fax: +91 (011) 2327 6863e-mail: : 978-11-1924-180-5 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by the UK Copyright, Designs and Patents Act 1988, without the prior permission of the used by companies to distinguish their products are often claimed as trademarks.

4 All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners. The publisher is not associated with any product or vendor mentioned in this Congress Cataloging-in-Publication DataA catalogue record for this book is available from the British phenomena are ubiquitous in sports, musical instruments, vehicle collisions, ballistics and natural disasters. A branch of physics that attempts to understand the forces, displacements and material failure associated with impact, is called as impact mechanics.

5 The application of impact mechanics in design of engineering systems which involve impact mechanics can be termed as applied impact mechanics. Applied impact mechanics demands a thorough appreciation of complex processes involving contact interfaces, nonlinear deformation, fracture and book is intended to understand impact phenomena as a focused application of diverse topics such as rigid body dynamics, structural dynamics, contact and continuum mechanics, shock & vibration, wave propagation and material modeling.

6 The book also emphasizes the need for a proper assessment of sophisticated experimental/computational tools promoted widely in contemporary design. In the first part, this book covers fundamental ideas of uniaxial and multidimensional impact waves generated during the contact of colliding bodies including a concise introduction to the relevant concepts of rigid body impact mechanics. In the second part of the book , contemporary strategies employed in experimental, theoretical and computational techniques are delineated for applications to vehicle collisions and ballistics.

7 This book aims to present a balanced treatment of theory, experiment and computation necessary for applied impact mechanics. This text has sufficient content to be offered for a single semester course; or, can be used as a supplementary reference for other courses on engineering design and analysis such as advanced mechanics of solids, structural dynamics, earthquake engineering, bio-mechanics, impact and vibration engineering, etc. Thus, this book develops pertinent mechanics of materials of impact processes from the viewpoints of authors from academic and defence research and development with a cumulative international teaching and research experience of over seventy five years.

8 The authors hope that this effort will broaden the horizons of technical education in general and industrial impact engineering design and analysis in book will be of interest to senior undergraduate, graduate and doctoral students of all branches of mechanical sciences. Professional researchers and engineers will also benefit by acquiring a better appreciation of underlying impact mechanics principles and notions. This book is well illustrated with figures, tables, examples, case studies and exercise problems for rapid assimilation of key ideas.

9 Sophisticated methods of experimental observation as well as computational codes that have evolved rapidly in the recent past are yet to be assimilated for universities curricula to gain better understanding of underlying theoretical concepts of impact. A unique feature of this book is that it deals with several examples and exercises to develop a basic understanding of the physics and mathematics of impact process from first principles in a way that is easy to follow and use by idea of writing this book was born of a perceived need for such a book , based on the research experience of the authors.

10 While we find that impact is an active topic of research in various industries, very few text books that develop the concepts from the first principles, taking them all the way to advanced topics, exist in the market. Hence, the authors embarked on this project. The text matter of the book evolved out of the class notes prepared by the authors when they were teaching this subject in their respective institutions. In this text book , the list of references/bibliography is provided at the end of each chapter for ease of reference.