摘要
X射线法用于缺口根部和裂纹尖端等徽区的残余应力测试的先决条件是解决缩小光束直径、提高衍射束的强度和准确设置试样等技术问题.在X射线衍射仪上借助于自行设计制造的限束对光装置和侧倾对中附件,成功地测定了缺口根部半径为1mm的喷丸残余应力场和板形试样压-压周期载荷下裂纹尖端的残余拉应力场.
Measurement of residual stress at notch root and crack tip can be realized with a precise setting device for specimen and a X-ray of small beam size and high intensity. A-goniometer with specimen aligning system is designed to measure the residual stresses at the root of notch which islmm in radius. Residual stress distributions along the depth of notch root after shot peening and at the crack tip after push-push loading were datermined.
出处
《实验力学》
CSCD
北大核心
1989年第4期367-372,共6页
Journal of Experimental Mechanics
基金
国家自然科学基金
