摘要
分析了南岭大理岩的损伤特征 ,根据脆性损伤理论 ,得到了南岭大理岩损伤耗散能释放率与损伤变量的关系曲线 ,与实测曲线符合较好 ;
The lamage character of Nanling marble is analysized.According to the brittle damage theory,the curve between the damage energy release rate and damaeg variable is acquired.The theory analysis is agreed with the test.The dynamic fracture fractal model is built which belongs in the couple of driving crystal and penetring crystal of Nanling marble.The fractal dimension of crack expansion and the formular of Griffith critical expanding force is also obtained.
