Energy Principles and Variational Methods in Applied Mechanics

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A comprehensive guide to using energy principles and variational methods for solving problems in solid mechanics This book provides a systematic, highly practical introduction to the use of energy principles, traditional variational methods, and the finite element method for the solution of engineering problems involving bars, beams, torsion, plane elasticity, trusses, and plates. It begins with a review of the basic equations of mechanics, the concepts of work and energy, and key topics from variational calculus. It presents virtual work and energy principles, energy methods of solid and structural mechanics, Hamilton's principle for dynamical systems, and classical variational methods of approximation. This book takes a more unified approach than that found in most solid mechanics books in order to introduce the finite element method. Featuring more than 200 illustrations and tables, this Third Edition has been reorganized and contains extensive new material, including a new chapter devoted to the latest developments in functionally graded beams and plates. * Offers clear and easy-to-follow descriptions of the concepts of work, energy, energy principles and variational methods * Covers energy principles of solid and structural mechanics, traditional variational methods, the least-squares variational method, and the finite element, along with applications for each * Provides an abundance of examples, in a problem-solving format, with descriptions of applications for equations resulting in obtaining solutions for engineering structures * Features end-of-chapter problems for course assignments, a Companion Website with a Solutions manual, instructor's manual, figures, and more Energy Principles and Variational Methods in Applied Mechanics, Third Edition is both a superb text/reference for engineering students in aerospace, civil, mechanical, and applied mechanics, and a valuable working resource for engineers in design and analysis in the aircraft, automobile, civil engineering, and shipbuilding industries.