Tridimensional Representative Volume Element of Microporous Foam Aluminum Composites

The effective elastic modulu、yield strength and elastoplastic stress-strain behavior o f Microporous Foam Aluminum Composites are predicted by using the micromechanic finite element simulations on the base of tridimensional representative volume element.The datas of calculation of tridimensional pattern were compared with results of two-dimensional pattern in this article.The results show that the effective elastic modulu and yield strength of composites decrease with the increase of v_f basically and the behavior of the metallic foam appears with the increase of v_f.It is also found that datas of tridimensional pattern is higher than the datas of two-dimensional pattern because of the properties of Z-axis.