What is Multiscale Analysis?
The multi-scale analysis is literally the means of the analysis that will combine the behavior or the properties of both structure bodies with different scales. To put into a few words, there are various methods to approach and one of the techniques such as the homogenization method has been well known as a typical method. For example, composite materials that are used for various products in recent years consist of multiple, various materials. Supposing that the characteristics of the composite material can be homogenized, we could predict the behavior of the overall product. As a result, ideal material design is possible.
Multiscale Analysis flow
Material property values are calculated by numerical material test of micro structure without material tests that were required conventionally, by utilizing Multiscale.Sim. The results enable prediction of the macroscopic behavior by the macro structural analysis. Further, it is possible to predict the microscopic behavior by going back to the micro structure analysis again.
The need for multi-scale analysis
In recent years, a composite material that has anisotropic properties and complex microstructure is used in various products. Therefore, it is necessary to grasp the material characteristics of microstructure first of all in order to understand the behavior of the overall product.
Usually, it is common to perform the material test in order to determine the material characteristics of the composite material. However, characteristics obtained from this test are actually characteristics of the macro-structure instead of the microstructure. Suppose that there is an analysis tool that could consider the characteristics at the micro-level and the macro-level such as parts model or components with different scales of the analysis model simultaneously, and will enable material design that takes advantage of the characteristics of the material inherent. In addition, there is a possibility that if the material could be on the design variables, product development can be performed with great features that did not exist before.
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【 Composite Material Example 】
Laminate sheet, fiber reinforced plastic, carbon, metal matrix composites, bone, reinforced concrete, light metal (such as aluminum, magnesium, titanium), alloys (such as stainless steel), fiber (Natural fiber, synthetic fiber, carbon fiber), ceramics, paper, and synthetic resin
Utility of multi-scale analysis
Examples of utility of multi-scale analysis are shown below.
Development and Sales Framework
CAE tool "Multiscale.Sim" uses the homogenization method which is one method of multi-scale modeling, and is jointly developed by three companies, Cybernet Systems Co.,Ltd., Nitto Boseki Co.,Ltd., and Quint Corporation by receiving cooperation from Professor Kenjiro Terada of Tohoku University. The official release date was June 25, 2007.