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Stability Loss and Buckling Delamination

by Akbarov, Surkay.
Authors: SpringerLink (Online service) Physical details: XVII, 448 p. 138 illus. online resource. ISBN: 3642302904 Subject(s): Engineering. | Computer science %Mathematics. | Materials. | Engineering. | Continuum Mechanics and Mechanics of Materials. | Computational Mathematics and Numerical Analysis. | Ceramics, Glass, Composites, Natural Methods.
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Preface -- Acknowledgment -- List of abbreviations -- Introduction -- Stability loss problems for viscoelastic plates -- Buckling delamination of elastic and viscoelastic composite plates with cracks -- Surface and internal stability loss in the structure of elastic and viscoelastic layered composites.-  Stability loss in the structure of unidirected fibrous elastic and viscoelastic composites -- Applications of the approach developed in Chapter 4 on the problems related to the stress concentration in initially stressed bodies -- Self-balanced stresses caused by periodical curving of two neighboring and periodically located row of fibers in an infinite matrix -- References -- Index.

This book investigates stability loss and buckling delamination problems of the viscoelastic composite materials and structural members made from these materials within the framework of the Three-Dimensional Linearized Theory of Stability (TDLTS). The investigation of stability loss problems is based on the study of an evolution of the initial infinitesimal imperfection in the structure of the material or of the structural members with time (for viscoelastic composites) or with external compressing forces (for elastic composites). This study is made within the scope of the Three-Dimensional Geometrically Non-Linear Theory of the Deformable Solid Body Mechanics. The solution to the corresponding boundary-value problems is presented in the series form in a small parameter which characterizes the degree of the initial imperfection. The boundary form perturbation technique is employed and nonlinear problems for the domains bounded by noncanonical surfaces are reduced to the same nonlinear problem for the corresponding domains bounded by canonical surfaces and to series subsequent linearized problems. Corresponding boundary value problems are solved by employing Laplace transformation with respect to time, analytical and numerical (FEM) methods of the system of the partial itegro-differential equations. The viscoelasticity of the materials is described through the fractional exponential operators. Numerical results on the critical time and on the critical force obtained for various problems on the stability loss of the structural members made of elastic and viscoelastic composite materials and on the stability loss in the structure of these materials are presented and discussed. As well as the results of investigations on buckling delamination problems for elastic and viscoelastic composite plates contained cracks are presented and discussed.  The book has been designed for graduate students, researchers and mechanical engineers who employ composite materials in various key branches of modern industry. 

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