摘要
本文介绍了贴片云纹干涉法对含有裂纹的压力容器变形测量的实验技术。同时测算出裂纹尖端附近区域弹塑性应变场，塑性区尺寸及ＣＯＤ值，并与理论计算值和四种ＣＯＤ设计曲线进行比较。数据表明本实验方法可行，实验结果可靠。
The experimental technique takinq measure of the deformation of pressure vesselscontaining the crack is presented by use of moire interferometry method.The field of the elasto plastic strain,the size of the plastic zone and the COD date around the crack tip are determinedby the method.The experimental results agree well with those calculated by the theory formulation and the four kinds of COD design curves.The conclusions are that this experimental methodis advisable and that the experimental results are reliable.
