Time-dependent strain development under constant stress in TRIP steels

2006 ◽  
Vol 55 (4) ◽  
pp. 287-290 ◽  
Author(s):  
L. Zhao ◽  
B. Mainfroy ◽  
M. Janssen ◽  
A. Bakker ◽  
J. Sietsma
Keyword(s):  
Constant Stress ◽  
Time Dependent ◽  
Strain Development ◽  
Trip Steels ◽  
Dependent Strain

Creep of 2618 Aluminum Under Step Stress Changes Predicted by a Viscous-Viscoelastic Model

1980 ◽  
Vol 47 (1) ◽  
pp. 21-26 ◽  
Author(s):  
J. S. Lai ◽  
W. N. Findley
Keyword(s):  
Constitutive Equations ◽  
Superposition Principle ◽  
Viscoelastic Model ◽  
Multiple Integral ◽  
Constant Stress ◽  
Time Dependent ◽  
Stress Tests ◽  
Linear Elastic ◽  
Stress Changes ◽  
Dependent Strain

Nonlinear constitutive equations are developed and used to predict from constant stress data the creep behavior of 2618 Aluminum at 200°C (392°F) for tension or torsion stresses under varying stress history including stepup, stepdown, and reloading stress changes. The strain in the constitutive equation employed includes the following components: linear elastic, time-independent plastic, nonlinear time-dependent recoverable (viscoelastic), nonlinear time-dependent nonrecoverable (viscous) positive, and nonlinear time-dependent nonrecoverable (viscous) negative. The modified superposition principle, derived from the multiple integral representation, and strain-hardening theory were used to represent the recoverable and nonrecoverable components, respectively, of the time-dependent strain in the constitutive equations. Excellent-to-fair agreement was obtained between the experimentally measured data and the predictions based on data from constant-stress tests using the constitutive equations as modified.

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

scholarly journals STUDY ON THE PREDICTION FORMULA FOR TIME-DEPENDENT STRAIN OF CONCRETE : Prediction formula of drying shrinkage strain

2005 ◽  
Vol 70 (597) ◽  
pp. 9-15 ◽  
Author(s):  
Yoshiaki SATO ◽  
Chizuru KIYOHARA ◽  
Kohji TERANISHI ◽  
Keiichi IMAMOTO ◽  
Hirozo MIHASHI ◽  
...  
Keyword(s):  
Drying Shrinkage ◽  
Shrinkage Strain ◽  
Time Dependent ◽  
Prediction Formula ◽  
Dependent Strain
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