The results shows that the micro-void, smooth characterless region, peeling patterns and rocky patterns are basic elements of fracture surface morphology.

• 结果表明:微坑形貌,平坦无特征区,剥离花样和岩石层状形貌是PS拉伸断面上的基本形貌。前二者对应PS银纹缓慢破裂;