Koji Yamamoto is Technology Specialist and Developer of Multiscale.Sim at Cybernet System Co.,Ltd.
This article presents an example of the analysis of a powder composed of spherical particles. Since powders have a very fine heterogeneous structure, a multi-scale approach based on homogenization analysis is proposed. The macroscopic material behavior of the powder is obtained through virtual compression tests using a unit cell model representative of the microstructure. The microstructure is further homogenized by curve-fitting its material response according to the constitutive law of the macro material. The analysis was performed using Ansys® MechanicalTM and its add-on tool Multiscale.Sim.
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software
Using this technique, all material constants can be evaluated without expensive experimental campaigns.
multiscale composites
CASE STUDY
In this example, these features were tested by simulating the motion of a very thin plastic film (32µm) being dragged by two rollers.
recurdyn mbd-ansys mechanics multibody