Investigation on the transient response of a porous half-space with strain and thermal relaxations due to laser pulse heating

doi:10.1080/17455030.2021.1916126

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	Investigation on the transient response of a porous half-space with strain and thermal relaxations due to laser pulse heating
	He, Shuangquan; He, Tianhu
刊名	WAVES IN RANDOM AND COMPLEX MEDIA
	2021
关键词	Porous materials laser pulse thermal relaxation strain relaxation voids
ISSN号	1745-5030
DOI	10.1080/17455030.2021.1916126
英文摘要	Porous materials have been extensively used in electronic communications, aerospace, bio-medicine and petrochemical, etc. due to their attractive attributes such as low relative density, thermal and acoustical insulation and good permeability. Ultrashort laser pulses have a series of unique advantages including high energy density, ultrashort interaction time and high accuracy, which are widely used in the fields of precision machining and microelectronic manufacture. For porous materials heated by an ultrashort laser pulse, revealing the interplay between deformation field and temperature field is crucial to guide their engineering application and optimization design. The present work devotes to investigating the transient response of a porous half-space heated by a non-Gaussian laser beam on its boundary surface based on the newly established linear thermoelastic theory with strain and thermal relaxations. The coupled governing equations are formulated and solved through the Laplace transform and its numerical inversion. The distributions of the non-dimensional temperature, displacement, stress as well as volume fraction field are obtained and illustrated graphically. In calculation, the effects of the thermal relaxation factor, the strain relaxation factor on the temperature field, volume fraction field, displacement field as well as stress field are examined and discussed in detail.
WOS研究方向	Physics
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000642129700001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148246]
专题	研究生院
作者单位	Lanzhou Univ Technol, Sch Sci, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	He, Shuangquan,He, Tianhu. Investigation on the transient response of a porous half-space with strain and thermal relaxations due to laser pulse heating[J]. WAVES IN RANDOM AND COMPLEX MEDIA,2021.
APA	He, Shuangquan,&He, Tianhu.(2021).Investigation on the transient response of a porous half-space with strain and thermal relaxations due to laser pulse heating.WAVES IN RANDOM AND COMPLEX MEDIA.
MLA	He, Shuangquan,et al."Investigation on the transient response of a porous half-space with strain and thermal relaxations due to laser pulse heating".WAVES IN RANDOM AND COMPLEX MEDIA (2021).