Creep Mechanics
By: by Josef Betten
Publisher: Springer Berlin Heidelberg
Published: 2002
Place of publication: Berlin, Heidelberg
Language: eng
Format: [electronic resource] /
Number of pages: 327
ISBN-13: 9783662049730; 9783662049716
Subjects: Mechanics; Engineering; Materials; Surfaces (Physics); Hydraulic engineering
Description: In this book constitutive equations for the secondary and tertiary creep stage of anisotropic materials are formulated. To investigate the secondary creep behaviour the existence of a creep potential is presumed. It is established, that regarding to the theory of representation for tensor functions the creep potential hypothesis furnishes only restricted forms of constitutive equations even if a general creep potential is assumed in the anisotropic case. The creep process in its tertiary phase is characterized by a damage tensor. Some possible representations of constitutive equations involving (initial) anisotropy of the material (e.g. from rolling) and anisotropic creep-damage are discussed. The formulation of such equations is based upon theorems regarding tensor-valued tensor functions.
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Table of contents: title: Introduction; title: Tensor Notation; title: Some Basic Equations of Continuum Mechanics; title: Creep Behavior of Isotropic and Anisotropic Materials; title: Constitutive Equations; title: Creep Behavior of Thick-Walled Tubes; title: The Creep Potential Hypothesis in Comparison with the Tensor Function Theory; title: Damage Mechanics; title: Tensorial Generalization of Uniaxial Creep Laws to Multiaxial States of Stress; title: Viscous Fluids; title: Memory Fluids; title: Viscoelastic Materials; title: Viscoplastic Materials; title: LAPLACE Transformations; title: Creep Experiments.