Comparing the calculation time and results respectively between two cases; the multi-scale analysis on porous cantilever and the direct modeling non-homogeneity. Then verifying the validity of the multi-scale analysis.

Performing a static linear structural analysis which defines the pressure on the upper surface by fully restraining the left end of the cantilever. A total of 21 analysis cases were performed. The number of holes vary from 1 to 21 in the vertical direction.

Analysis Model

Graphs of displacement and stress of the macro-model and direct model are shown below. A tendency for more analysis accuracy is observed when the number of holes is increased (scale ratio of macro and micro increases).

Comparison of Calculation Time

Analysis Results

Graphs of displacement and stress of the macro-model and direct model are shown below. A tendency for more analysis accuracy is observed when the number of holes is increased (scale ratio of macro and micro increases).

Comparison of Deformation Amount

Comparison of Equivalent Stress

Analysis Types

Structural Analysis、Mutiscale Analysis、Macro Structural Analysis