自愈水凝胶
间苯二酚
极限抗拉强度
材料科学
张力(地质)
复合材料
对流
压力(语言学)
机械
化学
高分子化学
物理
有机化学
语言学
哲学
作者
Julien Hubert,Erwan Plougonven,Angélique Léonard,Frédéric Collin
标识
DOI:10.1061/9780784480779.058
摘要
In this paper, we present the method used to investigate the drying behavior of the Resorcinol (R) formaldehyde (F) hydrogels and the tools needed for its numerical modeling. First, the studied material is introduced. Then the experiments are briefly presented and some preliminary results are given. Drying tests have been first carried out to characterize the drying kinetics of RF hydrogels. The experiments are used to calibrate the transfer parameters of a convective drying law based on the boundary layer model. Ultimately, the goal is to model the Hydromechanical behavior of the RF gels during drying and predict crack genesis. To do so, a thermo-hydro-mechanical coupled model including a tensile failure criterion is suggested. The tensile failure criterion is based on the existence of a tension cut-off expressed in terms of a minimum mean effective stress.
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