期刊
COMPOSITE STRUCTURES
卷 234, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2019.111674
关键词
Stabilized node-based smoothed radial point interpolation method; Functionally graded magneto-electro-elastic; Magneto-electro-thermo-elastic; Multi-physics coupling
资金
- National Key R&D Program of China [2018YFF01012400]
- National Natural Science Foundation of China [51975243, 51875241]
- Jilin Provincial Department of Science and Technology Fund Project [20170101043JC, 20180520072JH]
- Jilin Provincial Department of Education [JJKH20180084KJ, JJKH20170788KJ]
- Graduate Innovation Fund of Jilin University [101832018C184]
It is well-known that the standard finite element method (FEM) has the disadvantage of 'overly-stiff and could not offer reliable enough solutions. We proposed a novel stabilized node-based smoothed radial point interpolation method (SNS-RPIM) to analyze the free vibration and the behavior of functionally graded magnetoelectro-elastic (FGMEE) devices under mechanical and thermal load, which cured the 'overly-soft' and temporally instability of traditional NS-RPIM. The gradient variance items associated with the field nodes are applied to construct the system stiffness matrix. The detailed numerical study has shown the superiority of the proposed method. SNS-RPIM performs well in solving static magneto-electro-thermo-elastic (METE) multi-physics coupling field problems, which validates the accuracy, convergence of the proposed method. Moreover, SNS-RPIM is less insensitive to mesh distortion than FEM and NS-RPIM. The advantages mentioned above make SNS-RPIM very helpful for the design of the actual intelligent devices.
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