The analytical results show that porosity, void ratio, increment of porosity, increment of void ratio, rate of porosity and rate of void ratio are non-homogeneous in shear band.
The analytical solutions of maximum void ratio, average value of increment of maximum void ratio, average value of maximum void ratio and average value of maximum porosity were derived.
建立了剪切带内部的最大孔隙比、平均最大孔隙比增量、平均最大孔隙比及平均最大孔隙度的解析式。
3
Microporous polypropylene membrane has many desirable properties including high void volumes, well-controlled porosity, chemical intertness and low cost.