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	Application of modeling and simulation of thermal stress in solidification process of a heavy steel casting
	Liu Xiaogang ; Kang Jinwu ; Huang Tianyou ; Liu Baicheng
	2010-05-10 ; 2010-05-10
关键词	Practical Theoretical or Mathematical/ casting cooling deformation finite difference methods finite element analysis solidification steel thermal stress cracking turbines/ thermal stress solidification process heavy steel casting Francis turbine band casting FDM/FEM integrated system contact element method numerical simulation boundary conditions hot tearing cold crack cooling deformation/ A8140N Fatigue, embrittlement, and fracture A0230 Function theory, analysis A0260 Numerical approximation and analysis A6220M Fatigue, brittleness, fracture, and cracks A6470D Solid-liquid transitions A8120G Preparation of metals and alloys (compacts, pseudoalloys) E1520G Forming processes E2120 Heat and thermodynamic processes (mechanical engineering) E0210L Numerical analysis E2180B Plasticity (mechanical engineering) E2180E Fracture mechanics and hardness (mechanical engineering) E2310 Power and plant engineering (mechanical engineering) E3636 Metallurgical industries/ Fe/ss C/ss
中文摘要	The thermal stress evolution during the solidification process of a Francis turbine band casting had been simulated by the FDM/FEM integrated system. The interaction between the casting and core was disposed by using the contact element method in numerical simulation, which improved traditional method for disposing casting/model boundary conditions. The tendency of hot tearing during solidification and cold crack during cooling was predicted by employing different criteria based on the simulated stress results. The characteristics of deformation during cooling were also studied, which provided reference to control the shrinkage scale of the casting. The simulated results are approximately in accordance with the practical case.
语种	中文 ; 中文
出版者	China Mech. Eng ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/21273]
专题	清华大学
推荐引用方式 GB/T 7714	Liu Xiaogang,Kang Jinwu,Huang Tianyou,et al. Application of modeling and simulation of thermal stress in solidification process of a heavy steel casting[J],2010, 2010.
APA	Liu Xiaogang,Kang Jinwu,Huang Tianyou,&Liu Baicheng.(2010).Application of modeling and simulation of thermal stress in solidification process of a heavy steel casting..
MLA	Liu Xiaogang,et al."Application of modeling and simulation of thermal stress in solidification process of a heavy steel casting".(2010).

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