Time Dependent Viscoelastic Behaviour of Eps Geofoam
(0) A series of laboratory tests was carried out to assess the time-dependent creep behaviour of EPS geofoam at room temperature (23℃) and at 40℃.The experimental data were then used to calibrate and to validate mechanical viscoelastic models along with an empirical Power Law model,at these two temperatures.The viscoelastic models examined were the 3-element (Maxwell-Kelvin),the 4-element (Burgers) and the Modified 4-element models.The modified 4-element model and the base case,the empirical power law model,were found to give the best predictions.As anticipated,the experimental results show that creep rate is higher at elevated temperatures.The results,at 23℃ and 40℃,offer a means to assess and model creep behavior in geotechnical applications at normal,and at a practical elevated,temperature where use of EPS geofoam in warmer climate may be a concern.
Viscoelasticity Geosynthetics Geofoam Mathematical Models Creep Analogues Temperature Effects
Yong Zou Chin Jian Leo Henry Wong
School of Engineering, University of Western Sydney,Locked Bag 1797, Penrith, NSW 2747, Australia Laboratoire Géomatériaux-Département Génie Civil et B(~)timent(CNRS URA 1652)Ecole Nationale des Tra
国际会议
济南
英文
1095-1099
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）