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论文类型： 期刊论文

发表时间： 2017-06-01

发表刊物： JOURNAL OF FUSION ENERGY

收录刊物： SCIE、EI、Scopus

卷号： 36

期号： 2-3

页面范围： 49-57

ISSN号： 0164-0313

关键字： First wall; Transient events; Thermal-mechanical behavior; Finite element method

摘要： In this paper, the thermal-mechanical responses of the first wall (FW) composed of pure tungsten (W) and China Low Activation Martensitic steel in China Fusion Engineering Test Reactor are predicted under the normal state and the transient events, i.e., major disruption (MD), vertical displacement events (VDEs) and edge localized modes (ELMs), using finite element method (FEM). The temperature distribution in the armor material and structural material is predicted and analyzed, and the temperature induced thermal stress is obtained through a fully coupled thermal-stress analysis module. The comparative simulation results reveal that the short duration time of MD and ELMs have less thermal/mechanical effects on the FW than that of the long deposition time of VDEs.