应变局部化破坏模型试验的尺寸效应数值分析

孙帅非,王景,缪骁,凌道盛

Numerical analysis of scale effects in model tests of strain localization failure

Shuaifei SUN,Jing WANG,Xiao MIAO,Daosheng LING

表 1 三点弯梁黏聚区域模型参数

Tab.1 Parameters of cohesive zone model for three-point bending beam model

材料编号 Gc/(N·m−1) $ {\sigma }_{\text{p}} $/kPa $ {\delta }_{\text{nc}} $/mm $ {\delta }_{\text{nr}} $/mm 2-Ⅰ 43.18 112.5 0.35 0.768 2-Ⅱ 86.36 112.5 0.70 1.536 2-Ⅲ 172.72 112.5 1.40 3.072