Investigation of Thermoelastic Wave Propagation in Euler-Bernoulli Beam via Nonlocal Strain Gradient Elasticity and G-N Theory
Gu, Bingdong1; He, Tianhu1,2
2021-07
发表期刊JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES
ISSN2523-3920
卷号9期号:5页码:-
摘要The size-dependent effect arising in micro/nano-structures has attracted considerable attention in academic and industrial communities. The theories developed to characterize such effect mainly include the nonlocal elasticity theory, the strain gradient theory, the modified coupled stress theory and the more recent nonlocal strain gradient elasticity etc. Meanwhile, the thermal-induced deformation or stress in micro/nano-structures is increasingly becoming a vital issue in their designs and applications. Nevertheless, theoretical investigations to predict the thermoelastic performances of micro/nano-structures are not so common, especially in the case of nonlocal strain gradient elasticity incorporating thermoelastic coupling effect. In present work, investigation of thermoelastic wave propagation in micro-beam is conducted in the context of the nonlocal strain gradient elasticity and the G-N theory, taking the thermoelastic coupling effect into account. The governing equations are formulated based on the Euler-Bernoulli beam model and the G-N theory. By assuming the wave-type solutions, the equations are solved and the dispersion relation between frequency and wave number and the relation between phase velocity and wave number are determined respectively. In calculation, the above two relations are fully investigated and comparisons on them under different theories are provided accordingly. Some new findings are presented and discussed in detail. It is hoped that the present work may provide some guidelines in designing and optimizing micro-structures.
关键词Size-dependent effect Nonlocal strain gradient elasticity Thermal-induced deformation Thermoelastic coupling effect Euler-Bernoulli beam Thermoelastic wave propagation
DOI10.1007/s42417-020-00277-4
收录类别SCOPUS ; SCIE
语种英语
WOS研究方向Engineering ; Mechanics
WOS类目Engineering, Mechanical ; Mechanics
WOS记录号WOS:000609946000001
出版者SPRINGER HEIDELBERG
来源库WOS
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/147324
专题研究生院
通讯作者He, Tianhu
作者单位1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Peoples R China;
2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
第一作者单位兰州理工大学
通讯作者单位兰州理工大学;  理学院
第一作者的第一单位兰州理工大学
推荐引用方式
GB/T 7714
Gu, Bingdong,He, Tianhu. Investigation of Thermoelastic Wave Propagation in Euler-Bernoulli Beam via Nonlocal Strain Gradient Elasticity and G-N Theory[J]. JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES,2021,9(5):-.
APA Gu, Bingdong,&He, Tianhu.(2021).Investigation of Thermoelastic Wave Propagation in Euler-Bernoulli Beam via Nonlocal Strain Gradient Elasticity and G-N Theory.JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES,9(5),-.
MLA Gu, Bingdong,et al."Investigation of Thermoelastic Wave Propagation in Euler-Bernoulli Beam via Nonlocal Strain Gradient Elasticity and G-N Theory".JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES 9.5(2021):-.
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