Biot number effect and non-Fourier effect on temperature field and stress intensity factor of a cracked strip under thermal shock loading

doi:10.1016/j.engfracmech.2020.106923

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Biot number effect and non-Fourier effect on temperature field and stress intensity factor of a cracked strip under thermal shock loading
	Li W 1; Li J 3; Song F(宋凡)2
刊名	ENGINEERING FRACTURE MECHANICS
	2020-04-01
卷号	228 页码:17
关键词	Biot's number Non-Fourier effect Crack Fourier transform Singular integral equations
ISSN号	0013-7944
DOI	10.1016/j.engfracmech.2020.106923
通讯作者	Song, Fan(songf@lnm.imech.ac.cn)
英文摘要	In this paper, we considered a thermal shock problem of a strip with an inner crack parallel to the heated or cooled surface. The effect of the surface heat transfer properties and the non-Fourier effect, which are modified by effective Biot's number and the non-Fourier factor, were considered to investigate the transient temperature field and the dynamic stress intensity factors (SIFs). Fourier transform and Laplace transform were used to reduce this mixed boundary value problem to singular integral equations (SIEs). The Gauss-Chebyshev numerical integration method was applied to the SIEs and linear equations are obtained. Finally, numerical inverse Laplace transform was used to obtain the temperature field and SIFs. The numerical results showed that Biot's number not only affects the uniformity of the temperature field and the magnitude of the SIFs strongly, but also makes contributions to the non-Fourier effect. This finding can help better understanding the fracture behaviors of advanced materials and making a progress to determine the applicable conditions of the non-Fourier effect.
分类号	二类/Q1
资助项目	National Natural Science Foundation of China[11972041] ; National Natural Science Foundation of China[11875001] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040102] ; National Key Research and Development Program of China[2016YFA0501601]
WOS关键词	HYPERBOLIC HEAT-CONDUCTION ; THERMOELASTIC ANALYSIS ; CERAMIC MATERIALS ; HALF-PLANE ; FRACTURE ; RESISTANCE ; LEQUATION ; BEHAVIOR
WOS研究方向	Mechanics
语种	英语
WOS记录号	WOS:000517397300007
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China
其他责任者	Song, Fan
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81598]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.North China Inst Aerosp Engn, Sch Mech & Elect Engn, Langfang, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing, Peoples R China; 3.Univ Paris XIII, LSPM, CNRS UPR 3407, Villetaneuse, France
推荐引用方式 GB/T 7714	Li W,Li J,Song F. Biot number effect and non-Fourier effect on temperature field and stress intensity factor of a cracked strip under thermal shock loading[J]. ENGINEERING FRACTURE MECHANICS,2020,228:17.
APA	Li W,Li J,&宋凡.(2020).Biot number effect and non-Fourier effect on temperature field and stress intensity factor of a cracked strip under thermal shock loading.ENGINEERING FRACTURE MECHANICS,228,17.
MLA	Li W,et al."Biot number effect and non-Fourier effect on temperature field and stress intensity factor of a cracked strip under thermal shock loading".ENGINEERING FRACTURE MECHANICS 228(2020):17.