One-Sided Nondestructive Evaluation of CFRP Composites By Using Ultrasonic Sound

Kwang-Hee Im; Gui-Lin Zhang; Sung-Rok Choi; Chang-Hee Ye; Je-Sung Ryu; Soo-Hwan Lim; Min-Gui Han; David K. Hsu

추천

검색

질문

자료유형: 학술저널

저자정보: Kwang-Hee Im (우석대학교) Gui-Lin Zhang (우석대학교) Sung-Rok Choi (우석대학교) Chang-Hee Ye (우석대학교) Je-Sung Ryu (우석대학교) Soo-Hwan Lim (우석대학교) Min-Gui Han (우석대학교) David K. Hsu (Iowa State University)

저널정보: 한국생산제조학회 한국생산제조학회지 한국생산제조시스템학회지 Vol.20 No.1

발행연도: 2011.2

수록면: 47 - 52 (6page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

It is well known that stiffness of composites depends on layup sequence of CFRP(carbon fiber reinforced plastics) laminates because the layup of composite laminates influences their properties. Ultrasonic NDE of composite laminates is often based on the backwall echoes of the sample. A pair of such transducers was mounted in a holder in a nose-to-nose fashion to be used as a scanning probe on composites. Miniature potted angle beam transducers were used ( Rayleigh waves in steel) on solid laminates of composites. Experiments were performed to understand the behavior of the transducers and the nature of the waves generated in the composite (mode, wave speed, angle of refraction). C-scan images of flaws and impact damage were then produced by combining the pitch-catch probe with a portable manual scanner known as the Generic Scanner (”GenScan”). The pitch-catch signal was found to be more sensitive than normal incidence backwall echo of longitudinal wave to fiber orientation of the CFRP composites, including low level porosity, ply waviness, and cracks. Therefore, it is found that the experimentally Rayleigh wave variation of pitch-catch ultrasonic signal was consistent with numerical results and one-side ultrasonic measurement might be very useful to detect the defects.

#Ultrasonic sound(초음파) #Peak to peak amplitude(피크 대 피크 진폭) #Composites(복합재료) #Pitch-catch signal(피치캐치 신호) #Backwall echo(배면 에코) #Rayleigh wave(레일레이 파)

참고문헌 (7)

참고문헌 신청

Im K. H. / 2001 / Characteristics of falling weight impact responses due to stacking sequences of CF/Epoxy composite plates / Journal of the Korean Society of Machine Tool Engineers 10(6):48~56

Kwang-Hee Im / 2003 / On Fiber Orientation Characterization of CFRP Laminate Layups Using Ultrasonic Azimuthal Scanners / 비파괴검사학회지 23(6):566~576

Goebble K. / 1980 / Structure analysis by scattered ultrasonic radiation / Research Techniques in Nondestructive Testing 4:4~9

Hsu, D K. / 1986 / Evaluation of porosity in aluminum alloy castings by single-sided access ultrasonic back scattering / Review of Progress in QNDE 5B:1633~1642

2010 / Vendor of Staveley/Qual Corp miniature potted angle beam transducers / Olympus NDT, Inc

이 논문의 저자 정보

임광희

소속기관 우석대학교

주요연구분야 공학 > 기계공학 > 기계공학 일반 공학 > 기계공학 > 자동차공학

논문수 134 이용수 4,793

장계림

소속기관 우석대학교

주요연구분야 공학 > 기계공학 > 기계공학 일반 공학 > 기계공학 > 자동차공학

논문수 24 이용수 614

최성록

소속기관 우석대학교