toughness index

基本解释

The concept of strength and toughness index of steel fiber concrete is founded.
提出钢纤维混凝土强韧双重指标概念。
In order to use the strength and toughness index for design and apply of SFRC unified theoretical calculation formula of reinforcing and toughening of SFRC is given.
初步给出建立钢纤维混凝土增强、增韧统一理论计算公式思想，为钢纤维混凝土强韧双重指标在设计、选用钢纤维混凝土中的应用打下基础；
Two important facts, crystal shape and magnetic inclusions, which affect toughness index were expounded. Especially, magnetic inclusions affect thermal toughness index more than tough ness index.
阐述了影响金刚石冲击强度的两个重要因素：晶型与磁性包裹体，特别是磁性包裹体对热冲击强度的影响比对常温冲击强度的影响更甚。