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《Engineering Mechanics》 2006-05
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THREE-DIMENSIONAL THERMAL-ELASTIC DYNAMIC FRACTURE OF HOLLOW CYLINDER WITH A SEMI-ELLIPTIC SURFACE CRACK

GUO Rui-ping1,2,FAN Tian-you2(1.Academy of Equipment Command and Technology,Beijing 101416,China;2.Beijing Institute of Technology,Beijing 100081,China)  
Thermal-elastic dynamic fracture of a hollow cylinder with a semi-elliptic surface crack under thermal stress and impact loading is investigated.The analysis is performed by means of fracture dynamics and finite element method,and a three-dimensional finite element program is developed to determine the temperature field and dynamic stress intensity factor.The results show that the effects of hollow cylinder's boundary surface,crack surface,material inertia and elastic waves play significant roles under impact loading coupled with thermal stress.
【Fund】: 国家自然科学基金资助项目(10176003)
【CateGory Index】: O346.1
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