Butterworth-Heinemann Linacre House,Jordan Hill,Oxford OX2 8DP 225 Wildwood Avenue,Woburn.MA 01801-2041 A division of Reed Educational and Professional Publishing Ltd A member of the Reed Elsevier plc group First published 1977 Reprinted with corrections 1980,1981,1982 Second edition 1985 Reprinted with corrections 1988 Reprinted1989,1991,1993,1995,1996 Third edition 1997 Reprinted1998,1999,2000 0E.J.Hearn1977,1985.1997 All rights reserved.No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication)without the written permission of the copyright holder except in accordance with the provisions of the Copyright,Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd,90 Tottenham Court Road,London,England WIP9HE. Applications for the copyright holder's written permission to reproduce any part of this publication should be addressed to the publishers British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library ISBN0750632658 Library of Congress Cataloguing in Publication Data Hearn,E.J.(Edwin John) Mechanics of materials 1:an introduction to the mecahnics of elastic and plastic deformation of solids and structural components/E.J.Hearn.-3rd ed. p.cm. Includes bibliographical references and index. ISBN0750632658 1.Strength of materials.I.Title TA405.H3 96-49967 620.1'23-dc21 CIP Printed and bound in Great Britain by Scotprint,Musselburgh .taalvi 14ry FOR EVERY TITLE THAT WE PUBLISH,BUTTERWORTH-HEINEMANY WILL PAY POR BTCY TO PLANT AND CARE FOR A TREE.Butterworth-Heinemann Linacre House, Jordan Hill, Oxford OX2 8DP 225 Wildwood Avenue, Woburn, MA 01801-2041 A division of Reed Educational and Professional Publishing Ltd -@A member of the Reed Elsevier plc group First published 1977 Reprinted with corrections 1980, 1981, 1982 Second edition 1985 Reprinted with corrections 1988 Reprinted 1989, 1991, 1993, 1995, 1996 Third edition 1997 Reprinted 1998, 1999,2000 0 E. J. Hearn 1977, 1985, 1997 All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England WIP 9HE. Applications for the copyright holder's written permission to reproduce any part of this publication should be addressed to the publishers British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library ISBN 0 7506 3265 8 Library of Congress Cataloguing in Publication Data Hearn, E. J. (Edwin John) Mechanics of materials 1: an introduction to the mecahnics of elastic and plastic deformation of solids and structural components/E. J. Hearn. - 3rd ed. p. cm. Includes bibliographical references and index. ISBN 0 7506 3265 8 1. Strength of materials. I. Title TA405.H3 96-49967 620.1'23-dc21 CIP Printed and bound in Great Britain by Scotprint, Musselburgh FOR EVERY TITLGTHAT WE PUBLISH. BU176RWORTHdlEINEMANN WU PAY FUR BTCV TO PLANT AND CARE FOR A TREE