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从损伤的实质物理意义出发,提出了损伤参量的抽象分形,把损伤推广应用到岩石的破碎阶段,用损伤插值分形来表示总体损伤,从而构造出损伤与块度的迭代关系式。根据冲击荷载作用下岩石中的能量耗散规律与脆性动态断裂准则,把应力波作用下的疲劳损伤迭代关系式应用到岩石的破坏后阶段,从而得出冲击能量、岩石损伤、块度分布之间的关系。实验研究表明,两种关系计算所得的损伤吻合较好。
Based on the physical meaning of damage, an abstract fractal of damage parameter is proposed. The damage is extended to the stage of rock fragmentation, and the damage damage is represented by the fractal interpolation fractal. Thus, an iterative relation between damage and blockiness is constructed. According to the law of energy dissipation and brittleness dynamic fracture criterion in rock under impact load, the iterative relation formula of fatigue damage under stress wave is applied to the post-destructive stage of rock to get the impact energy, rock damage and block distribution Relationship between. Experimental studies show that the damage calculated by the two relations is in good agreement.