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PREFACE:
There are several good mechanical engineering data books on the market but these tend to be very bulky and expensive, and are usually only available in libraries as reference books.
The Mechnical Engineer’s Data Handbook has been compiled with the express intention of providing a compact but comprehensive source of information of particular value to the engineer whether in the design office, drawing office, research and development department or on site.
It should also prove to be of use to production, chemical, mining, mineral, electrical and building services engineers, and lecturers and students in universities, polytechnics and colleges.
Although intended as a personal handbook it should also find its way into the libraries of engineering establishments and teaching institutions. The Mechanical Engineer’s Data Handbook covers the main disciplines of mechanical engineering and incorporates basic principles, formulae for easy substitution, tables of physical properties and much descriptive matter backed by numerous illustrations.
It also contains a comprehensive glossary of technical terms and a full index for easy cross-reference. 1 would like to thank my colleagues at the University of Northumbria, at Newcastle, for their constructive suggestions and useful criticisms, and my wife Anne for her assistance and patience in helping me to prepare this book.
Engineering design involves the correct determination of the sizes of components to withstand the maximum stress due to combinations ofdirect, bending and shear loads. The following deals with the different types of stress and their combinations.
Only the case of two- dimensional stress is dealt with, although many cases of three-dimensional stress combinations occur. The theory is applied to the special case of shafts under both torsion and bending.
