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A General Time Dependent Constitutive Model: Part I— Theoretical Developments1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Using an internal-variable formalism as a starting point, we describe the viscoelastic complement of a previously-developed viscoplasticity formulation of the complete potential structure type. It ...
A Modeling Investigation of Thermal and Strain Induced Recovery and Nonlinear Hardening in Potential Based Viscoplasticity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Specific forms for both the Gibb’s and the complementary dissipation potentials were chosen such that a complete potential based multiaxial, isothermal, viscoplastic model was obtained. This model, ...
A General Time Dependent Constitutive Model: Part II— Application to a Titanium Alloy1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Given the mathematical framework and specific viscoelastic model in Part I our primary goal in this second part is focused on model characterization and assessment for the specific titanium ...
Constitutive Equations for Engineering Materials, Volume I: Elasticity and Modeling
Publisher: The American Society of Mechanical Engineers (ASME)
Creep Buckling of Cylindrical Shell under Variable Loading
Publisher: American Society of Civil Engineers
Abstract: The ability for structural alloys to exhibit recovery of state, i.e., return to a softer state following periods of hardening, under varying stress and temperature is known to strongly influence structural response under ...
Stabilization of the Cyclic Response of the Ni49.9 Ti50.1 Shape Memory Actuators under Thermomechanical Loads
Publisher: ASCE
Abstract: This work is focused on the development of a novel strategy to achieve dimensional stability for 55NiTi actuators that operate at a relatively higher temperature; i.e., with an austenite finish temperature, Af, greater ...
Effective Strategy for Automated Characterization in Complex Viscoelastoplastic and Damage Modeling for Isotropic/Anisotropic Aerospace Materials
Publisher: American Society of Civil Engineers
Abstract: The development of an overall strategy to estimate the material parameters for a class of recent viscoplastic and damage-material models is presented. The procedure is automated through an integrated parameter estimation ...