Depth Evaluation of Surface-breaking Crack by Self-calibrating Technique by Laser Based Ultrasound(NDE3)

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概要

• 論文の詳細を見る

• It is required to evaluate nondestructively depth of surface-breaking cracks in structures. In this paper, the self-calibrating technique by laser-based ultrasound is used to measure the depth of surface-breaking crack. Optical generation of ultrasound produce well defined pulse with a reliable frequency content. They are broad banded and are suitable for the measuring of attenuation and scattering over a wide frequency range. The self-calibrated surface signal transmission data shows a good sensitivity as practical tool for assessment of surface-breaking crack depth. It is suggested that the relationship between the signal transmission and crack depth can be used to predict the surface-breaking crack depths in structures.

• 社団法人日本機械学会の論文
• 2001-10-20

著者

• Ha Sang-bong

  Graduate School Pusan National University

• CHOI Sang-Woo

  School of Mechanical Engineering, Pusan National University

• LEE Joon-Hyun

  School of Mechanical and Automotive Engineering, Inje University

• Lee Joon-hyun

  School Of Mechanical And Automotive Engineering Inje University

• Choi Sang-woo

  School Of Mechanical Engineering Pusan National University

関連論文

• Depth Evaluation of Surface-breaking Crack by Self-calibrating Technique by Laser Based Ultrasound(NDE3)
• DEVELOPMENT OF MEASURING TECHNIQUE FOR MICRO-CRACK IN CERAMIC BY HIGH FREQUENCY ACOUSTIC MICROSCOPY
• Strategy for Optimum Design of the Phased Array Transducer(NDE1)

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