Thermomechanical coupling effect of PVC sheet with defects  

作　　者：杨占宇 罗迎社 粟建新 张永忠 邓旭华 陈胜铭 邓瑞基 马敏伟 张亮 

机构地区：[1]Institute of Rheological Mechanics and Material Engineering,Central South University of Forestry and Technology [2]College of Information Engineering,Xiangtan University [3]College of Electronic and Information Engineering,Central South University of Forestry and Technology [4]Institute of Fundmental Mechanics and Material Engineering,Xiangtan University

出　　处：《Journal of Central South University》2008年第S1期568-572,共5页中南大学学报（英文版）

基　　金：Project(10672191) supported by the National Natural Science Foundation of China;Project(06JJ2059)supported by the Provincial Natural Science Foundation of Hunan,China;Project(KF0607) supported by the Key Laboratory of Low Dimensional Materials and Application Technology (Xiangtan University),Ministry of Education,China

摘　　要：Thermomechanical coupling of PVC sheet with defects under uniaxial loading at different rates and different sizes of microbores was studied.The local temperature field of the dynamic damage-rupture process zone at crack tip was surveyed with infrared thermographic sensor.Based on the irreversible thermomechanics theory,the dissipation law of deformation-heat effect during the whole process was found.Furthermore,the effect of thermoelasticity in the initial stage of extension was explained.Thermomechanical coupling of PVC sheet with defects under uniaxial loading at different rates and different sizes of microbores was studied. The local temperature field of the dynamic damage-rupture process zone at crack tip was surveyed with infrared thermographic sensor. Based on the irreversible thermomechanics theory, the dissipation law of deformation-heat effect during the whole process was found. Furthermore, the effect of thermoelasticity in the initial stage of extension was explained.

关 键 词：THERMOMECHANICAL coupling IRREVERSIBLE THERMOMECHANICS DISSIPATION THERMOELASTICITY effect 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]