Torsion and Shear Stresses in Ships
In the last few decades, much research work was conducted to improve ship structure analysis and design. Most of the efforts were directed to improve the strength of hull girder and to use the method of finite element analysis more efficiently and effecti
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Mohamed Shama
Torsion and Shear Stresses in Ships
123
Mohamed Shama Faculty of Engineering Alexandria University Alexandria 21544 Egypt e-mail: [email protected]
ISBN 978-3-642-14632-9
e-ISBN 978-3-642-14633-6
DOI 10.1007/978-3-642-14633-6 Springer Heidelberg Dordrecht London New York Library of Congress Control Number: 2010933503 Ó Springer-Verlag Berlin Heidelberg 2010 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Cover design: WMXDesign GmbH Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
To my wife For her love, patience, encouragement and support To my late parents For their continuous care and encouragement To my students Whose enthusiasm and hard work have encouraged me to prepare the course material of this book.
Preface
In the last few decades, much research work was conducted to improve ship structure analysis and design. Most of the efforts were directed to improve the strength of hull girder and to use the method of finite element analysis more efficiently and effectively. Because of the high degree of complexity of ship structures the interaction between hull girder strength and local strength require special attention. Any structural element of the ship hull girder is subjected to several types of stresses including the fabrication and residual stresses. The stresses induced by hull girder and local loadings include the primary stresses, secondary stresses and tertiary stresses. Local loading comprises tensile, compressive, lateral, shear and torsion loadings. This complex system of stresses could produce unacceptable deformations and high values of equivalent stresses. Most of the methods commonly used for ship structure analysis and design focus on the stresses induced by hull girder bending and shear as well as the stresses induced by local lateral loadings. This book is intended to cover an area of ship structure analysis and design that has not been exhaustively covered by most published text books on ship structures. Also, it addresses a very complex subject in the design of ship structure and presents it in a simple and suitable form for research students and practicing engineers. In addition it presents the basic concepts of the methods and
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