Investigation on the transient response of a porous half-space with strain and thermal relaxations | |
He, Shuangquan; Peng, Wei; Ma, Yongbin; He, Tianhu | |
2020 | |
发表期刊 | European Journal of Mechanics, A/Solids |
ISSN | 09977538 |
卷号 | 84 |
摘要 | In present paper, a linear thermoelastic theory for porous materials is established by extending the existing theory, in which the strain relaxation and the thermal relaxation are included. Based on the thermodynamic laws, the constitutive relations are derived, and then the corresponding constitutive equations are obtained by specifying the generalized free energy. Further, by combining the existing theory, the non-Fourier's heat conduction law and the obtained constitutive equations, the linear thermoelastic theory for porous materials is formulated. To apply the established theory, the transient response of a half-space with voids is considered. The half-space with voids is subjected to a thermal shock and a mechanical shock simultaneously on its bounding surface. The problem is solved by means of Laplace transform and its numerical inversion. The distributions of the non-dimensional temperature, displacement, stress as well as the volume fraction field are obtained and illustrated graphically. In calculation, the effects of the thermal relaxation factor, the strain relaxation factor and the magnitude of the mechanical shock on the considered variables are examined and discussed in detail. © 2020 Elsevier Masson SAS |
关键词 | Constitutive equations Free energy Geometry Heat conduction Laplace transforms Porous materials Strain relaxation Thermoelasticity Constitutive relations Dimensional temperatures Heat-conduction law Numerical inversion Porous half space Thermal relaxation Thermo-elastic theory Thermodynamic laws |
DOI | 10.1016/j.euromechsol.2020.104064 |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
WOS研究方向 | Mechanics |
WOS类目 | Mechanics |
WOS记录号 | WOS:000574925700001 |
出版者 | Elsevier Ltd |
EI入藏号 | 20202608865890 |
EI主题词 | Transient analysis |
EI分类号 | 641.1 Thermodynamics ; 641.2 Heat Transfer ; 921 Mathematics ; 921.3 Mathematical Transformations ; 931.1 Mechanics ; 931.2 Physical Properties of Gases, Liquids and Solids ; 951 Materials Science |
来源库 | Compendex |
分类代码 | 641.1 Thermodynamics - 641.2 Heat Transfer - 921 Mathematics - 921.3 Mathematical Transformations - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 951 Materials Science |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/115183 |
专题 | 理学院 研究生院 |
通讯作者 | He, Tianhu |
作者单位 | Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China |
第一作者单位 | 理学院 |
通讯作者单位 | 理学院 |
第一作者的第一单位 | 理学院 |
推荐引用方式 GB/T 7714 | He, Shuangquan,Peng, Wei,Ma, Yongbin,et al. Investigation on the transient response of a porous half-space with strain and thermal relaxations[J]. European Journal of Mechanics, A/Solids,2020,84. |
APA | He, Shuangquan,Peng, Wei,Ma, Yongbin,&He, Tianhu.(2020).Investigation on the transient response of a porous half-space with strain and thermal relaxations.European Journal of Mechanics, A/Solids,84. |
MLA | He, Shuangquan,et al."Investigation on the transient response of a porous half-space with strain and thermal relaxations".European Journal of Mechanics, A/Solids 84(2020). |
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