Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 14 Issue 10
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- Pages.119-126
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- 1997
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
Stress Evaluation by the Measurement of Acoustoelastic Effect Using a Line-Foucus Acoustic Microscope
선 집속 초음파 현미경을 이용한 음탄성효과 측정에 의한 응력 평가
- Kim, J.O. (Dept.of Mechanical Engineering, Soongsil University) ;
- Lee, Y.C.
- Published : 1997.10.01
Abstract
The relationship between the applied stresses and the change of elastic wave velocity has been established based on the acoustoelasticity theory. The non-uniform stress field in a loaded specimen has been evaluated from the surface acoustic wave velocity measured by the line-focus acoustic microscopy with the acoustoelastic constants obtained form a calibration test. The evaluated stresses are in good agreement with the results calculated by finite element method.
Keywords
- acoustoelasticity;
- stress;
- surface acoustic wave;
- elastic coefficient;
- line-focus acoustic miroscope
- 음탄성;
- 응력;
- 표면탄성파;
- 탄성계수;
- 선 집속 초음파 현미경;