Ultrasonic Approach of Rayleigh Pitch-Catch Contact Ultrasound Waves on CFRP Laminated Composites

材料科学技术（英文）, 2008, 24(3): 407-409.

^1, , ^2, , ^3, , ^4, , ^5, , ^6, , ^7,

1.School of Mechanical Eng., Chosun Univ., Kwangju 501-759, Korea

2.Department of Automotive Eng., Woosuk University, Chonbuk, 565-701, Korea

3.School of Mechanical Eng., Chosun Univ., Kwangju 501-759, Korea

4.Center for Nondestructive Evaluation, Iowa State University, Iowa 50011, USA

5.Dept. of Naval Arch. and Ocean Eng., Chosun Univ, Kwangju 501-759, Korea

6.School of Mechanical Eng., Sungkyunkwan University, Kyonggi-do, 440-746, Korea

7.School of Mechanical Eng., Sungkyunkwan University, Kyonggi-do, 440-746, Korea

Ultrasonic Approach of Rayleigh Pitch-Catch Contact Ultrasound Waves on CFRP Laminated Composites

In-Young Yang ^1, , Kwang-Hee Im ^2, , Uk Heo ^3, , David K Hsu ^4, , Je-Woong Park ^5, , Hak-Joon Kim ^6, , Sung-Jin Song ^7,

1.School of Mechanical Eng., Chosun Univ., Kwangju 501-759, Korea

2.Department of Automotive Eng., Woosuk University, Chonbuk, 565-701, Korea

3.School of Mechanical Eng., Chosun Univ., Kwangju 501-759, Korea

4.Center for Nondestructive Evaluation, Iowa State University, Iowa 50011, USA

5.Dept. of Naval Arch. and Ocean Eng., Chosun Univ, Kwangju 501-759, Korea

6.School of Mechanical Eng., Sungkyunkwan University, Kyonggi-do, 440-746, Korea

7.School of Mechanical Eng., Sungkyunkwan University, Kyonggi-do, 440-746, Korea

Keywords： Impact damages

CFRP (carbon fiber reinforced plastics) composite materials have wide applicability because of their inherent design flexibility and improved material properties. However, impacted composite structures have 50%-75% less strength than undamaged structures. In this work, a CFRP composite material was nondestructively characterized in order to ensure product quality and structural integrity of CFRP and one-sided pitch-catch technique was developed to measure impacted-damaged area by using an automated-data acquisition system in an immersion tank. A pitch-catch signal was found to be more sensitive than normal incidence backwall echo of longitudinal wave under defect conditions in the composite.

参考文献

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Ultrasonic Approach of Rayleigh Pitch-Catch Contact Ultrasound Waves on CFRP Laminated Composites

参考文献