裂纹形态对SG夹层玻璃开裂后硬化效应的影响机制

彭沈楠, 杨健, 王星尔, 陆敏铖, 朱禹翰

Influence and Mechanism of Crack Morphology on Post-Fracture Stiffening Effect of SG-laminated Glass

PENG Shennan, YANG Jian, WANG Xing’er, LU Mincheng, ZHU Yuhan

表2 单轴拉伸试件的平均抗拉强度与等效抗拉刚度

Tab.2 Mean tensile strength and effective stiffness of UT test specimens

试件编号 ${\stackrel{-}{\sigma }}_{\mathrm{b}}$/MPa ${\stackrel{-}{\sigma }}_{\mathrm{b}}$增强率/% ${\overline{E}}_{\mathrm{e}\mathrm{f}\mathrm{f}}$/MPa ${\overline{E}}_{\mathrm{e}\mathrm{f}\mathrm{f}}$增强率/% SG 28.38 — 570.89 — 6a 40.20 41.7 2 664.16 366.7 6b 36.72 29.4 1 166.13 104.3 6c 30.83 8.6 917.85 60.8 8a 37.66 32.7 4 770.89 735.7 12a 36.74 29.5 4 700.46 723.3