Numerical homogenization methods have been widely studied because it can alternate analytical approaches. While analytical solutions are well-established for the elastic materials and simple microstructure, , it remains difficult to obtain analytical solutions for nonlinear materials and complex microstructure. Even though such feature promoted the application of composites, on the other hand, the problem was brought out to clarify the relation between the macroscopic properties and the microstructure of phase materials.
![abaqus 6.14 parallel studio compatible abaqus 6.14 parallel studio compatible](https://www.osc.edu/sites/osc.edu/files/staff_files/xwang/comsol3.png)
This feature enables to design composites with stiffer, lighter and stronger properties which cannot be achieved by using individual phase materials. Numerical examples for the aluminium matrix composite with boron particles, the plate-fin structure under high temperature and short fiber reinforced epoxy matrix composite explain that the current method can be applied efficiently for the prediction of effective behavior in the elastic-viscoplastic composite.Ĭomposite, which is a multiphase material consisting of two or more different phase materials has a feature where macroscopic properties can be easily controlled by changing its phase materials and microstructural characteristics.
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This plays a decisive role in reducing the amount of information necessary for the prediction of effective behavior, and enhancing the computational efficiency. Furthermore, the number of integration points of the local constitutive relation necessary for the evolution of reduced variables is significantly decreased by dividing the representative volume element (RVE) into a number of material clusters using the data compression technology by clustering. The current method estimates the effective behavior of composite directly from the local constitutive relation of phase materials, so that the effective behavior of composite can be predicted only by the integration of local constitutive equation. In this paper, a cluster-based nonuniform transformation field analysis (CNTFA) is suggested for the multicale analysis of elastic-viscoplastic composite.