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RISAn Experimental Study of the Structure of Constitutive Equations for Nonproportional Cyclic Plasticity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Three type 304 stainless steel specimens of the same geometry were subjected to complex, cyclic axial-torsional histories characterized by varying degrees of non-proportionality of straining. All ...
A Bounding Surface Theory for Cyclic Thermoplasticity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A nonisothermal, rate and time independent generalization of nonlinear kinematic hardening theory for cyclic plasticity is introduced. The model includes decomposition of backstress and of isotropic ...
An Evaluation of Recent Developments in Hardening and Flow Rules for Rate-Independent, Nonproportional Cyclic Plasticity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Mroz kinematic hardening rule has previously demonstrated superior capability to correlate cyclically stable nonproportional stress-strain response. In this paper, recently proposed kinematic ...
A Two Surface Model for Transient Nonproportional Cyclic Plasticity, Part 1: Development of Appropriate Equations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A two surface stress space model is introduced with internal state variable repositories for fading memory of maximum plastic strain range and non-proportionality of loading. Evolution equations ...
A Two Surface Model for Transient Nonproportional Cyclic Plasticity, Part 2: Comparison of Theory With Experiments
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For the two surface cyclic plasticity model introduced in Part 1, methods for determination of model parameters are described. The model is specialized to axial-torsional loading of a thin-walled ...
The Effect of Stress-State on the Large Strain Inelastic Deformation Behavior of 304L Stainless Steel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In metals, large strain inelastic deformation processes such as the formation of a preferred crystallographic orientation (crystallographic texture) and strain hardening processes such as the ...
On a Class of Kinematic Hardening Rules for Nonproportional Cyclic Plasticity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two surface theories for rate-independent plasticity have previously been shown to offer superior correlative capability in modeling material response under non-proportional loading. In this study, ...
In-Plane Stiffness and Yield Strength of Periodic Metal Honeycombs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In-plane mechanical properties of periodic honeycomb structures with seven different cell types are investigated in this paper. Emphasis is placed on honeycombs with relative density between 0.1 ...
An Evaluation of Several Constitutive Model Structures for Transient Nonproportional Cyclic Plasticity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Four constitutive models for cyclic plasticity of different essential structure are evaluated under conditions of nonproportional, multiaxial loading. Drucker’s one-surface theory, McDowell’s two-surface ...
A Finite Element Procedure of a Cyclic Thermoviscoplasticity Model for Solder and Copper Interconnects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A finite element procedure using a semi-implicit time-integration scheme has been developed for a cyclic thermoviscoplastic constitutive model for Pb-Sn solder and OFHC copper, two common metallic ...