fracture surface energy

Consequently, at the macroscopic crack branching velocity, the experimental fracture surface energy and the fracture surface roughness; have no single value in such materials.

因此，对这种材料在宏观裂纹分叉速度时，实验断裂表面能及断裂表面韧性没有单一值。

The fracture energy GF of concrete is one basic material characteristic, representing the energy necessary to create a unit area of fracture surface.

混凝土断裂能G _ F是材料的一个基本性能，表示扩展单位裂缝面所需要的能量。

In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.

本文研究考虑损伤时材料的断裂应力，推导出了在表面能密度有限的情况下，损伤断裂应力的计算公式。