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Development of a Hybrid Multiscale Analysis Method for Composites by Combining Homogenization Techniques and Direct FE2 Method
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DOI：10.3795/KSME-A.2026.50.3.189.png)
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Abstract
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In this paper, a hybrid multiscale analysis technique is proposed by combining the direct FE2 method and homogenization techniques to accurately and efficiently analyze the nonlinear behavior of composite materials. First, a homogenized analysis is performed to determine the overall behavior of structures and equivalent plastic strain distributions. The direct FE2 method is used only for the plastic region, and the other region is analyzed by the homogenization method to reduce computational costs. Various load conditions are applied to a single RVE to obtain the equivalent yield strength that is used to determine the region for the direct FE2 in the hybrid multiscale analysis. The proposed method is applied to cantilever beam and S-beam problems, demonstrating that the use of the direct FE2 in the plastic region enhances the accuracy of the results, while using a homogenized analysis in the elastic region significantly reduces computation time.
Keywords:
Multiscale Analysis
Direct FE2 Method
Asymptotic Homogenization
Equivalent Yield Strength
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Papers:
87
Citations:
308
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