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| Computational multi-field mechanics on hydrogels |
| Received:August 22, 2023 Revised:November 02, 2023 |
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| DOI：10.7511/jslx20230822001 |
| KeyWord:hydrogels intelligent structures multi-field coupling computational mechanics multi-scale |
| Author | Institution |
| 杨庆生 |
北京工业大学 工程力学系, 北京 |
| 刘夏 |
北京工业大学 工程力学系, 北京 |
| 粘向川 |
北京工业大学 工程力学系, 北京 |
| 宗婷 |
北京工业大学 工程力学系, 北京 |
| 乔海棣 |
北京工业大学 工程力学系, 北京 |
| 金山 |
北京工业大学 工程力学系, 北京 |
| 唐爱杰 |
北京工业大学 工程力学系, 北京 |
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| Abstract: |
| As an intelligent flexible material with multi-field coupling characteristics, the preparation technology, performance characterization, and structural application of hydrogels have been rapidly developed.Based on a detailed analysis of the constitutive theory and structural design of hydrogels, this paper proposes the basic methods and paradigms of computational multi-field coupling mechanics of hydrogels.At the microscopic scale, a coarse-grained molecular dynamics model of hydrogel has been developed.The coarse-grained force field was determined by using a machine learning method.At the macroscale, based on the recently developed constitutive models for isotropic hydrogel incorporating the effects of chain entanglements and anisotropic hydrogel reinforced by fibers, a coupled finite element method is presented to investigate the chemo-mechanical coupling behavior of the designed intelligent structures of hydrogels.It is pointed out that computational multi-field coupled mechanics will become the main analysis method for hydrogel structures, which contributes to the property design and engineering application of this kind of intelligent flexible materials. |
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