基于非傅里叶热传导对热冲击下带裂纹厚壁圆筒的分析

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Abstract With the development of technology and industry, traditional Fourier heat conduction is no longer applicable under extreme conditions.Based on the hyperbolic single-phase delay non-Fourier heat conduction equations, finite element method equations under thermal shock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.

Key words： non-Fourier heat conduction thermal shock thick-walled cylinder crack thermal stress intensity factor finite element analysis

Received: 10 September 2018 Published: 15 February 2020

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	ZHANG Yanbo1
	CHEN Aijun1
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Cite this article:

ZHANG Yanbo1,CHEN Aijun1,2. Numerical analysis for non-Fourier thermodynamic response of a thick-walled hollow cylinder with cracks under thermal shock[J]. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(4): 278-283.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2020/V39/I4/278

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