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This book contains geometrical and thermodynamical issues indispensable for development of a rational theory of thermoviscoplasticity. Geometrical picture of coupled thermomagnetomechanical histories of damaged solids is built both by means of Kroener's incompatibility approach as well by Eshelbian implanting eigenstrains. Duality of Euclidean anholonomic and non-Euclidean natural state space is also outlined in this book. Damaged inelastic materials of differential type, discrete and infinitesimal memory are obtained from principle of thermo-inelastic memory. Issue of plastic spin is considered. Postulate of minimal plastic work and corresponding non-associativity 4-tensor are then used to show whether associativity of flow rule holds. Postulates of Drucker, Iliushin and Hill are discussed. Thermodynamics of inelasticity is extensively discussed in classical, rational, extended and endochronic version with account to statistical thermodynamics. A non-steady aging is used in endochronic thermodynamics to cover creep-pasticity coupled inelastic histories. Multiaxial dynamic experiments with cylindrical, ``bichierino'' and cruciform specimen from austenitic stainless steels are analyzed. Quasi-rate independence and Rabotnov's plastic delay is combined with tensor representation. Inelastic ferromagnetics are treated by means of extended as well endochronic thermodynamics. For low cycle fatigue the experimentally observed displacement of magnetic induction history with respect to stress history is analyzed. Self consistent method applied to inelastic polycrystals is based on constrained micro-rotations and free meso-rotations. A special attention is devoted to slight disorder of polycrystal grains. The theory is confronted with classical J2-theory. Different inelastic multiaxial stress histories are analyzed and corresponding active slip systems determined. For numerical results micro quasi rate independence and relaxed Taylor's model are used. The theory of inelastic micromorphic polycrystals with couple stresses needs a very small number of necessary material constants. Nonproportionality of strain history as well as intergranular continuity are related to antisymmetry of stress tensor. Key topics: * Includes a detailed description of the geometry of thermo-deformation with local evolving natural state configuration * Provides a comparative review of various models of thermodynamics (classical, rational, endochronic, statistical) with special approach to inelastic high speed histories * Introduces quasi-rate independence and its application to plastic waves, ratcheting, and diffuse localization * Explores the sensor representation approach to thermo-inelastic coupled fields connected to a generalized associativity of flow rule as well as a comparison with the J2-approach * Examines micromechanics based on micro grain approach leading to reduced number of material constants * Provides biaxial cruciform specimen Hopkinson bar results * Reexamines the Hill’s yield function for nonproportional stress-thermo-strain histories This book is intended for material science experts and professionals interested in impact experiments, continuum mechanics researchers, engineers in research institutes and graduate and Phd students aiming to apply FEM to calculate strength of structures at time varying thermo-mechanical excitations.

Thermodynamics. --- Viscoplasticity. --- Thermodynamics --- Viscoplasticity --- Physics --- Physical Sciences & Mathematics --- Plasticity. --- Thermomechanical treatment. --- Engineering. --- Mathematical models. --- Mechanics. --- Mechanics, Applied. --- Continuum mechanics. --- Theoretical and Applied Mechanics. --- Mathematical Modeling and Industrial Mathematics. --- Continuum Mechanics and Mechanics of Materials. --- Mechanics of continua --- Elasticity --- Mechanics, Analytic --- Field theory (Physics) --- Applied mechanics --- Engineering, Mechanical --- Engineering mathematics --- Classical mechanics --- Newtonian mechanics --- Dynamics --- Quantum theory --- Models, Mathematical --- Simulation methods --- Construction --- Industrial arts --- Technology --- Cohesion --- Deformations (Mechanics) --- Plastics --- Rheology --- Plasticity --- Viscosity --- Mechanics, applied. --- Solid Mechanics.

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At present, the manufacturing industry is focused on the production of lighter weight components with better mechanical properties and always fulfilling all the environmental requirements. These challenges have caused a need for developing manufacturing processes in general, including obviously those devoted in particular to the development of thin-walled metallic shapes, as is the case with tubular and sheet metal parts and devices.This Special Issue is thus devoted to research in the fields of sheet metal forming and tube forming, and their applications, including both experimental and numerical approaches and using a variety of scientific and technological tools, such as forming limit diagrams (FLDs), analysis on formability and failure, strain analysis based on circle grids or digital image correlation (DIC), and finite element analysis (FEA), among others.In this context, we are pleased to present this Special Issue dealing with recent studies in the field of tube and sheet metal forming processes and their main applications within different high-tech industries, such as the aerospace, automotive, or medical sectors, among others.

micro tube --- hollow sinking --- plastic anisotropy --- surface quality --- size effect --- plasticity --- strength --- metallic tubes --- finite element analysis --- accumulative extrusion bonding --- kinematic bending --- product properties --- local heating --- profile bending --- asymmetric profile --- warping --- superimposed hydrostatic pressure --- shear damage growth --- fracture strain --- finite element analysis (FEA) --- additive manufacturing --- rapid prototyping --- sheet metal forming --- V-bending --- groove pressing --- HA-SPIF --- surface finish --- machine learning --- Ti6Al4V --- R-value --- thickness strain --- digital image correlation --- multi-camera DIC --- non-destructive testing --- single point incremental forming --- tube expansion --- formability --- fracture --- stress-triaxiality --- strain-hardening --- viscoplasticity --- bending --- semi-analytic solution --- Ti-6Al-4V ELI --- superplastic forming --- custom prosthesis --- in vivo tests --- n/a --- Technology --- Engineering --- History.