Numerical analysis for non-Fourier thermodynamic response of a thick-walled hollow cylinder with cracks under thermal shock
ZHANG Yanbo1, CHEN Aijun1,2
1.School of Science，Nanjing University of Science Technology, Nanjing 210094,China；
2.Science and Technology on Transient Impact Laboratory，Beijing 102202,China
Abstract：With the development of technology and industry, traditional Fourier heat conduction is no longer applicable under extreme conditions.Based on the hyperbolic single-phase delay non-Fourier heat conduction equations, finite element method equations under thermal shock were derived.The finite element method algorithm was programmed to study the thermodynamic response of the thick-walled cylindrical structure with crack under thermal shock.The numerical solution of temperature field, displacement field, and the stress intensity factor of crack tip under non-classical heat transfer conditions were calculated.The volatility effects of non-Fourier heat conduction, and the variation of temperature stress intensity factors under different thermal shock, different crack lengths and different phase delays were analyzed.For the non-classical engineering conditions, the reliability of the thick-walled cylindrical members with cracks and the optimal design of the components provide a numerical reference.Under non-classical engineering conditions, a numerical reference for better reliability and design of the thick-walled cylindrical components was provided.
张彦博1，陈爱军1,2. 基于非傅里叶热传导对热冲击下带裂纹厚壁圆筒的分析[J]. 振动与冲击, 2020, 39(4): 278-283.
ZHANG Yanbo1, CHEN Aijun1,2. Numerical analysis for non-Fourier thermodynamic response of a thick-walled hollow cylinder with cracks under thermal shock. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(4): 278-283.
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