These photos generally are used to explain how the relevant principles apply to real-world situations and how materials behave under load. The relevance of knowing the subject matter is reflected by the real-world applications depicted in over 44 new or updated photos placed throughout the book. Also, the artwork has been improved throughout the book to support these changes. In this regard, some new examples have been added and others have been modified to provide more emphasis on the application of important concepts. Some portions of the text have been rewritten in order to enhance clarity and be more succinct. The eighth edition has been significantly enhanced from the previous edition, and it is hoped that both the instructor and student will benefit greatly from these improvements. To achieve this objective, over the years this work has been shaped by the comments and suggestions of hundreds of reviewers in the teaching profession, as well as many of the author’s students. PREFACE It is intended that this book provide the student with a clear and thorough presentation of the theory and application of the principles of mechanics of materials. To the Student With the hope that this work will stimulate an interest in Engineering Mechanics and provide an acceptable guide to its understanding. Where those designations appear in this book, and the publisher was aware of a trademark claim, the designations have been printed in initial caps or all caps. Many of the designations by manufacturers and seller to distinguish their products are claimed as trademarks. To obtain permission(s) to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, 1 Lake Street, Upper Saddle River, NJ 07458. This publication is protected by Copyright, and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. Manufactured in the United States of America. Vice President and Editorial Director, ECS: Marcia Horton Senior Acquisitions Editor: Tacy Quinn Editorial Assistant: Coleen McDonald Executive Marketing Manager: Tim Galligan Senior Managing Editor: Scott Disanno Project Manager: Rose Kernan Senior Operations Supervisor: Alan Fischer Operations Specialist: Lisa McDowell Art Director: Kenny Beck Text and Cover Designer: Kenny Beck Photo Researcher: Marta Samsel Cover Images: High rise crane: Martin Mette/Shutterstock close up of crane with heavy load: Mack7777/Shutterstock close up of hoisting rig and telescopic arm of mobile crane: 36clicks/Shutterstock Media Director: Daniel Sandin Credits and acknowledgments borrowed from other sources and reproduced, with permission, in this textbook appear on appropriate page within text (or on page xvii).
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