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A Fixed-Point Iteration Method With Quadratic Convergence
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The fixed-point iteration algorithm is turned into a quadratically convergent scheme for a system of nonlinear equations. Most of the usual methods for obtaining the roots of a system of ...
A Viscoplastic Model for Single Crystals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A viscoplastic constitutive model is described in which deformation behavior is postulated on representative slip systems and the behavior of the entire crystal is determined by summing the slip ...
Stress Versus Temperature Dependence of Activation Energies for Creep
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The activation energy for creep at low stresses and elevated temperatures is associated with lattice diffusion, where the rate controlling mechanism for deformation is dislocation climb. At higher ...
Extending the Theory of Creep to Viscoplasticity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A viscoplastic theory is developed that reduces to creep theory analytically under steady-state conditions. A fairly simple model is constructed from this theoretical framework by defining material ...
High Temperature Inelastic Deformation Under Uniaxial Loading: Theory and Experiment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The elevated temperature, uniaxial inelastic deformation behavior of a Ni-base alloy, B1900 + Hf, has been investigated by performing isothermal tensile, creep, cyclic, stress relaxation, and ...