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RISA Self-Consistent Scheme for the Relaxation Behavior of Metals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We identify in this paper that stress relaxation in metals is a “strain-free” process. The corresponding self-consistent relations between the strain, and stress variations of a grain and of ...
Self-Consistent Determination of Time-Dependent Behavior of Metals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Though Kröner’s self-consistent model is not fully consistent in the elastic-plastic deformation of polycrystals, it is found to be perfectly consistent in the time-dependent deformation of such ...
A Micromechanical Theory of High Temperature Creep
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Based on the mechanism of dislocation climb-plus-glide, a micromechanical theory is developed for the high-temperature creep of polycrystals. This model assumes that dislocation climb is responsible ...
A Unified, Self-Consistent Theory for the Plastic-Creep Deformation of Metals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A unified, self-consistent scheme is formulated to determine the plastic-creep behavior of metals under combined stress. It is pointed out that such a deformation involves the transition from ...
A Physically Consistent Method for the Prediction of Creep Behavior of Metals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A physically consistent method, which considers the deformation mechanisms, the active and latent hardening in single crystals, and their transient and steady creep, is proposed to predict the ...
A Progressive Damage Mechanics in Particle-Reinforced Metal-Matrix Composites Under High Triaxial Tension
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The energy approach recently proposed by Qiu and Weng (1992) is introduced to estimate the equivalent stress of the ductile matrix in Tohgo and Chou’s (1991) incremental damage theory for ...
Strain-Rate Sensitivity, Relaxation Behavior, and Complex Moduli of a Class of Isotropic Viscoelastic Composites
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A micromechanical principle is developed to determine the strain-rate sensitivity, relaxation behavior, and complex moduli of a linear viscoelastic composite comprised of randomly oriented spheroidal ...
Influence of Inclusion Microgeometry on Some Thermomechanical Properties of Isotropic Polymer-Matrix Composites
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of inclusion shape on some selected thermomechanical properties of isotropic viscoelastic composites is investigated by a micromechanical theory. These properties include: (i) the ...
The Influence of a Ductile Interphase on the Overall Elastoplastic Behavior of a Fiber-Reinforced Composite
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: While there exist various homogenization theories for the plasticity of a fiber-reinforced composite, no such theories have been explicitly developed to account for the influence of a ductile ...
Antiplane Crack Problem in Functionally Graded Piezoelectric Materials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper the problem of a finite crack in a strip of functionally graded piezoelectric material (FGPM) is studied. It is assumed that the elastic stiffness, piezoelectric constant, and ...