A method for 3D simulation of internal gas effects on thermal-mechanical behaviors in nuclear fuel elements

作     者：JIANG Yijie CUI Yi HUO Yongzhong DING Shurong 

作者机构：Department of Mechanics and Engineering Science Fudan University Shanghai 200433 China 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2011年第22卷第3期

页      面：185-192页

核心收录：

学科分类：07[理学] 082403[工学-水声工程] 08[工学] 070206[理学-声学] 0827[工学-核科学与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0824[工学-船舶与海洋工程] 0702[理学-物理学] 

基　　金：Supported by Natural Science Foundation of China(Nos.10772049 and 11072062) Research and Development Program of China(863 Program, No.2009AA04Z408) Natural Science Foundation of Shanghai(No.06ZR14009) Pujiang Scholar Program and the Wangdao Scholar Program(No.08076) of Fudan University 

主　　题：热机械行为 气体效应 三维模拟 核燃料元件 仿真方法 热膨胀系数 相互作用 耦合效应 

摘      要：A new method for three-dimensional simulation of the interaction between the gas and the solid around is *** effects of the gas on the thermal-mechanical behaviors within the surrounded solid are performed by replacing the internal gas with an equivalent solid in the modeling,which can make it convenient to simulate the thermal-mechanical coupling effects in the solid research objects with gases in *** applied thermal expansion coefficient,Young s modulus and Poisson s ratio of the equivalent solid material are derived.A series of tests have been conducted;and the proposed equivalent solid method to simulate the gas effects is validated.