Long-term stress relaxation prediction for elastomers using the time–temperature superposition method

2007 ◽  
Vol 28 (5) ◽  
pp. 1513-1523 ◽  
Author(s):  
S. Ronan ◽  
T. Alshuth ◽  
S. Jerrams ◽  
N. Murphy
Keyword(s):  
Stress Relaxation ◽  
Superposition Method ◽  
Temperature Superposition ◽  
Time Temperature Superposition

Long-term stress relaxation behavior of Polyaniline-EPDM blends using the time-temperature-strain superposition method

2018 ◽  
Vol 6 (2) ◽  
pp. 025318 ◽  
Author(s):  
Muhammad Shafiq Irfan ◽  
Yasir Qayyum Gill ◽  
Motahira Hashmi ◽  
Sana Ullah ◽  
Farhan Saeed ◽  
...  
Keyword(s):  
Stress Relaxation ◽  
Relaxation Behavior ◽  
Superposition Method ◽  
Stress Relaxation Behavior ◽  
Temperature Strain

scholarly journals Color changes in wood during heating: kinetic analysis by applying a time-temperature superposition method

2010 ◽  
Vol 99 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Miyuki Matsuo ◽  
Misao Yokoyama ◽  
Kenji Umemura ◽  
Joseph Gril ◽  
Ken’ichiro Yano ◽  
...  
Keyword(s):  
Kinetic Analysis ◽  
Superposition Method ◽  
Color Changes ◽  
Temperature Superposition ◽  
Time Temperature Superposition

Time and temperature effects on geomembrane strain from a gravel particle subjected to sustained vertical force

2012 ◽  
Vol 49 (3) ◽  
pp. 249-263 ◽  
Author(s):  
A. Sabir ◽  
R.W.I. Brachman
Keyword(s):  
Experimental Data ◽  
Temperature Effects ◽  
High Density Polyethylene ◽  
Measured Data ◽  
Vertical Force ◽  
Temperature Superposition ◽  
Measured Strain ◽  
Time Temperature Superposition ◽  
Tensile Strains

Experimental data is reported that quantifies how time (up to 10 000 h) and temperature (from 22 to 85 °C) impact tensile strains in a 1.5 mm thick high-density polyethylene geomembrane — with a compressible clay liner beneath it — that are induced by an overlying gravel particle when subjected to a sustained vertical force. At an average applied stress of 250 kPa and clay water content of 16%, tensile strains were found to increase by 1.25 times as the temperature was increased from 22 to 55 °C after 1000 h. Similarly, strains were found to increase by factors between 1.2 to 1.3 as time was increased from 10 to 1000 h. Based on the measured data, time–temperature superposition (tTS) was then used to develop an approach to predict long-term geomembrane strains from gravel indentations. The tTS approach was validated against independent experiments conducted for 10 000 h (1.14 years) as it was found that the predicted strain of 19% was very close to the measured strain of 18%. Provided that the physical properties of the geomembrane do not decrease abruptly, the results suggest that the tTS approach developed can be used to provide estimates of long-term geomembrane strains.

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