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This book introduces numerous selected advanced topics in viscoelastic and viscoplastic materials. The book effectively blends theoretical, numerical, modeling and experimental aspects of viscoelastic and viscoplastic materials that are usually encountered in many research areas such as chemical, mechanical and petroleum engineering. The book consists of 14 chapters that can serve as an important reference for researchers and engineers working in the field of viscoelastic and viscoplastic materials.

Viscoelastic materials. --- Elastoviscus materials --- Viscoelastics --- Materials --- Polymer chemistry

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This book presents the theoretical and experimental foundations of quasi-static deformation of elastoplastic and viscoplastic materials and structural elements made of them. Experimental studies of deformation and fracture of materials under complex loading under impulse influences are described and discussed. A short introduction of theoretical and numerical methods for studying the stress–strain state of elastoplastic structural elements under dynamic, impulse loading and their interaction with other media is given.

Deformations (Mechanics) --- Mechanics, Applied. --- Viscoelastic materials. --- Elastoviscus materials --- Viscoelastics --- Materials --- Elastic solids --- Mechanics --- Rheology --- Strains and stresses --- Structural failures --- Applied mechanics --- Engineering, Mechanical --- Engineering mathematics

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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. .

Composite materials -- Delamination. --- Composite materials. --- Composite materials --- Viscoelastic materials --- Engineering & Applied Sciences --- Chemical & Materials Engineering --- Applied Mathematics --- Materials Science --- Delamination --- Elastic properties --- Viscoelastic materials. --- Delamination. --- Elastic properties. --- Elastoviscus materials --- Viscoelastics --- Composites (Materials) --- Multiphase materials --- Reinforced solids --- Solids, Reinforced --- Two phase materials --- Delamination of composite materials --- Engineering. --- Computer mathematics. --- Continuum mechanics. --- Continuum Mechanics and Mechanics of Materials. --- Computational Mathematics and Numerical Analysis. --- Ceramics, Glass, Composites, Natural Methods. --- Materials --- Mechanics. --- Mechanics, Applied. --- Computer science --- Solid Mechanics. --- Ceramics, Glass, Composites, Natural Materials. --- Mathematics. --- Computer mathematics --- Discrete mathematics --- Electronic data processing --- Applied mechanics --- Engineering, Mechanical --- Engineering mathematics --- Classical mechanics --- Newtonian mechanics --- Physics --- Dynamics --- Quantum theory --- Mathematics --- Ceramics. --- Glass. --- Composites (Materials). --- Amorphous substances --- Ceramics --- Glazing --- Ceramic technology --- Industrial ceramics --- Keramics --- Building materials --- Chemistry, Technical --- Clay --- Solids. --- Ceramic materials. --- Data processing. --- Ceramic industries --- Mines and mineral resources --- Solid state physics --- Transparent solids