An eigenelement method and two homogenization conditions |
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Authors: | Yufeng Xing Xingming Wang |
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Institution: | (1) The Solid Mechanics Research Center, Beihang University, 100083 Beijing, China |
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Abstract: | Under inspiration from the structure-preserving property of symplectic difference schemes for Hamiltonian systems, two homogenization
conditions for a representative unit cell of the periodical composites are proposed, one condition is the equivalence of strain
energy, and the other is the deformation similarity. Based on these two homogenization conditions, an eigenelement method
is presented, which is characteristic of structure-preserving property. It follows from the frequency comparisons that the
eigenelement method is more accurate than the stiffness average method and the compliance average method. |
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Keywords: | Composites Homogenization The equivalence of strain energy Deformation similarity Eigenelement method |
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