LENGTH AND DEPTH RESONANCES OF SURFACE CRACKS AND THEIR USE FOR CRACK SIZE ESTIMATION

被引：34

作者：

DOMARKAS, V

KHURIYAKUB, BT

KINO, GS

机构：

[1] Stanford University, Stanford

来源：

APPLIED PHYSICS LETTERS | 1978年 / 33卷 / 07期

关键词：

D O I：

10.1063/1.90486

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Angular scattering from surface cracks has been used for determining the length of a surface crack. This technique assumes the physical availability of space to carry out an angular scattering experiment, and makes no estimation of the depth of the crack. In this work, we report a new technique where the scattering from surface cracks is made versus frequency, at one angle of incidence only. Length and depth resonances of the crack are observed and used to estimate the crack geometry. We made our measurements on EDM notches in steel. The geometry of the crack has been predicted with an accuracy of 10-20%.

引用

页码：557 / 559

页数：3