Interface Coupling for Structural Multi-Scale Modeling Based on Refined Stress Distribution

CUI Yan; CHEN Liangjun; LU Wei; TENG Jun

doi:10.3724/j.gyjzG24032507

Volume 55 Issue 3

Mar. 2025

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CUI Yan, CHEN Liangjun, LU Wei, TENG Jun. Interface Coupling for Structural Multi-Scale Modeling Based on Refined Stress Distribution[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(3): 149-159. doi: 10.3724/j.gyjzG24032507

Citation:

CUI Yan, CHEN Liangjun, LU Wei, TENG Jun. Interface Coupling for Structural Multi-Scale Modeling Based on Refined Stress Distribution[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(3): 149-159. doi: 10.3724/j.gyjzG24032507

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Interface Coupling for Structural Multi-Scale Modeling Based on Refined Stress Distribution

doi: 10.3724/j.gyjzG24032507

1. Department of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China;
2. Shenzhen Municipal Design &Research Institute Co., Ltd., Shenzhen 518029, China;
3. Gemdale Development Management Co., Shenzhen 518129, China

Received Date: 2024-03-25
Available Online: 2025-06-07
Publish Date: 2025-03-20

Abstract

Abstract

The simplified assumptions of stress distribution are used in the existing coupling method based on energy conservation， which leads to the stress distortion near the connected interface， influences the performance analysis of the key components， and reduces the reliability of the whole model. Therefore， the establishment method of the refined stress distribution at the connected interface was proposed， in order to realize the deformation coordination and stress continuity at the connected interface of a structural multi-scale mode. Firstly， the multipoint constraint equation required for interface coupling was derived based on the principle of energy conservation； secondly， the establishment method of calculation model and the determination method of the refined stress distribution were studied； thirdly， the coefficient matrix of the multipoint constraint equation was determined by using the refined stress distribution and the selected element shape functions， and then the coupling state of different dimensional elements was realized； finally， the multi-scale models with various cross-section forms were established based on the different coupling methods， the numerical simulation results were compared and analyzed to validate the feasibility and effectiveness of the proposed method， which shown that the von Mises and displacement errors of the model established based on the proposed method could be reduced to below 2%， and the computation time could be improved by approximately 10%.
- energy conservation,
- refined stress distribution,
- interface coupling,
- structural multi-scale model

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References(15)

References

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