Modulated Rate (Time) – Dependent Strain Hardening of Ag/Bi2223 Composite Wire Flattened in a Low – Strength AgMg Alloy Matrix

2018 ◽  
Author(s):  
Malik I. Adam ◽  
◽  
Paolo Mele ◽  
Keyword(s):  
Strain Hardening ◽  
Time Dependent ◽  
Composite Wire ◽  
Alloy Matrix ◽  
Dependent Strain ◽  
Low Strength

Nonproportional Loading Steps in Multiaxial Creep of 2618 Aluminum

1985 ◽  
Vol 52 (3) ◽  
pp. 621-628 ◽  
Author(s):  
J. L. Ding ◽  
W. N. Findley
Keyword(s):  
Experimental Data ◽  
Strain Hardening ◽  
Kinematic Hardening ◽  
Superposition Principle ◽  
High Stress ◽  
Material Behavior ◽  
Time Dependent ◽  
Nonlinear Material ◽  
Strain Component ◽  
Dependent Strain

Experimental data on the creep behavior of 2618-T61 aluminum alloy under nonproportional loadings are presented. Among the important findings are the anisotropy induced by creep strain, synergistic effects during creep recovery, and strongly nonlinear material behavior at high stress levels. Data were compared with two theoretical models, a viscous-viscoelastic (VV) model and a viscoplastic (VP) model. In the VV model the time-dependent strain was decomposed into recoverable (viscoelastic) and nonrecoverable components. The VP model differs from the VV model in that all the time-dependent strain is assumed nonrecoverable. In each model, three viscoplastic flow rules based on different hardening natures, namely, isotropic strain hardening, kinematic hardening, and independent strain hardening were derived to describe the time-dependent nonrecoverable strain component, and compared with experiments. The viscoelastic component in the VV model was represented by the third-order multiple integral representation combined with the modified superposition principle. Predictions for all theories used material constants obtained from creep and recovery data only. Possible causes for the discrepancies between theories and experimental data were discussed. Further experimental and theoretical work necessary for the study of the time-dependent material behavior at high temperature were also suggested.

scholarly journals Crystallographic orientation-dependent strain hardening in a precipitation-strengthened Al-Cu alloy

2021 ◽  
Vol 205 ◽  
pp. 116577
Author(s):  
Brian Milligan ◽  
Dong Ma ◽  
Lawrence Allard ◽  
Amy Clarke ◽  
Amit Shyam
Keyword(s):  
Strain Hardening ◽  
Crystallographic Orientation ◽  
Cu Alloy ◽  
Dependent Strain

Temperature dependent strain hardening and fracture behavior of TWIP steel

2018 ◽  
Vol 104 ◽  
pp. 80-103 ◽  
Author(s):  
Manjunatha Madivala ◽  
Alexander Schwedt ◽  
Su Leen Wong ◽  
Franz Roters ◽  
Ulrich Prahl ◽  
...  
Keyword(s):  
Strain Hardening ◽  
Fracture Behavior ◽  
Twip Steel ◽  
Temperature Dependent ◽  
Dependent Strain

Modeling of the time-dependent strain response of electroactive NCC-PEO and PVDF composites

2015 ◽  
Author(s):  
Patrick S. Bass ◽  
Lauchlin Blue ◽  
Lin Zhang ◽  
Mi Li ◽  
Z.-Y. Cheng ◽  
...  
Keyword(s):  
Time Dependent ◽  
Strain Response ◽  
Dependent Strain

The time dependent strain potential function for a polymeric glass

Polymer ◽  
1985 ◽  
Vol 26 (4) ◽  
pp. 543-550 ◽  
Author(s):  
Gregory B. McKenna ◽  
Louis J. Zapas
Keyword(s):  
Potential Function ◽  
Time Dependent ◽  
Dependent Strain ◽  
Polymeric Glass
Sign in / Sign up

Export Citation Format

Share Document