空军工程大学学报(自然科学版)2001，Vol.2Issue(2)：64-66,3.
用超声波确定应力强度因子时对波型的选择
Requirement for Wave-mode to Determine StressIntensity Factor by Ultrasonic Wave
张忠平 1车俊 1刘志毅 1杨尊袍 1张建邦1
作者信息
摘要
Abstract
The requirement for wave-mode to determine stress intensityfactor (SIF) by ultrasonic wave is studied. The relationship between SIF and acoustic refractive index corresponding to longitudinal wave is used. The propagating velocities of both transverse and longitudinal waves in specimen and the refractive law are taken into account. It is found that, if a beam of ultrasonic longitudinal wave incidents upon the front surface of a loaded specimen with crack, two beams of ultrasonic longitudinal waves will pass through the rear surface of the specimen and four beams of them will pass through the front surface of the specimen since the reflection and the refraction. So, if ultrasonic wave is used to determine SIF, only the first one passing through the front (or rear) surface of the specimen can be used.关键词
应力强度因子/超声纵波/声速/波型转换/声折射率分类
通用工业技术引用本文复制引用
张忠平,车俊,刘志毅,杨尊袍,张建邦..用超声波确定应力强度因子时对波型的选择[J].空军工程大学学报(自然科学版),2001,2(2):64-66,3.
