摘要
本文提出的测量δ_c 的三点弯曲试件两点位移法,通过一次试验,可同时获得δ_c 和 r 两个值,具有临界点清楚、操作简便、精度高等优点.
A two-point displacement method is proposed to determine δ_c of a side—cut three—point bending specimen.Values of δ_c and rcan be obtained through only one test.The critical point shown in this method is clear.This method is accurate,easy to operate and excellent in measuring fracture toughness.
出处
《实验力学》
CSCD
北大核心
1993年第1期53-56,共4页
Journal of Experimental Mechanics
关键词
三点弯曲试件
两点位移法
δc值
three-point bending
fracture toughness
two-point displacement method
