단면 겹치기 접착 조인트에 존재하는 비대칭 결함 탐지를 위한 탄성파 유한요소 시뮬레이션
Finite Element Simulation of Elastic Waves for Detecting Anti-symmetric Damages in Adhesively-Bonded Single Lap Joint
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
This study presents a finite element simulation of elastic waves for detecting anti-symmetric damages in an adhesively-bonded single lap joint. Plane strain elements were used for modeling adherents (aluminum) and adhesives (epoxy). Three types of damage were introduced: thickness reduction, elasticity deterioration, and voids in the adhesive layers, and two excitation and reception arrangements (ER1 and ER2) were used to investigate the detectability of the damage. The simulation showed that symmetrically located damage, such as a thickness reduction, can be detected by one excitation and one reception arrangement (ER1) and anti-symmetric damages, such as elasticity deterioration and voids, can be detected by modified two-point elastic wave excitation (ER2). Compared with the ER1 arrangement, the ER2 arrangement does not require a baseline signal for damage detection; hence, an efficient method of anti-symmetric damage detection in an adhesively-bonded single lap joint is proposed.
Abstract
This study presents a finite element simulation of elastic waves for detecting anti-symmetric damages in an adhesively-bonded single lap joint. Plane strain elements were used for modeling adherents (aluminum) and adhesives (epoxy). Three types of damage were introduced: thickness reduction, elasticity deterioration, and voids in the adhesive layers, and two excitation and reception arrangements (ER1 and ER2) were used to investigate the detectability of the damage. The simulation showed that symmetrically located damage, such as a thickness reduction, can be detected by one excitation and one reception arrangement (ER1) and anti-symmetric damages, such as elasticity deterioration and voids, can be detected by modified two-point elastic wave excitation (ER2). Compared with the ER1 arrangement, the ER2 arrangement does not require a baseline signal for damage detection; hence, an efficient method of anti-symmetric damage detection in an adhesively-bonded single lap joint is proposed.
참고문헌 (16)
- Andruet, R.H., "Twoand Three-dimensional Geometrical Nonlinear Finite Elements for Analysis of Adhesive Joints", International Journal of Adhesion & Adhesives, 21, pp.17~34 (2001)
- Avila, A.F., "Stress Analysis on a Wavy-lap Bonded Joint for Composites", International Journal of Adhesion & Adhesives, 24, pp.407~414 (2004)
- Carpenter, W.C., "Two Finite Elements for Modeling the Adhesive in Bonded Configuration", Journal of Adhesives, 30, pp.25~46 (1989)
- Deng, M., "Nondestructive Evaluation of Adhesive Joints in Layered Structures using Nonlinear Measurement of Second Harmonics of Ultrasonic Lamb Waves", 2004 IEEE International Ultrasonics, Ferroelectrics, and Frequency Control Joint 50th Anniversary Conference, pp.2291~2294 (2004)
- Goncalves, J.P.M., "A Three-Dimensional Finite Element Models for Stress Analysis of Adhesive Joints", International Journal of Adhesion & Adhesives, 22, pp.357~365 (2002)
- Kim, J.K., "Finite Element Simulation of Two-Point Elastic Wave Excitation Method for Damage Detection in Concrete Structures", Russian Journal of Nondestructive Testing, 44(10), pp.719~726 (2008)
- 김승범, "램파와 압전소자 극성을 사용한 강구조의 실시간 균열손상 감지기법 개발", 한국지진공학회논문집, 10(6), pp.79~91 (2006), 한국지진공학회
- Li, G., "Finite Element and Experimental Studies on Single-Lap Balanced Joints in Tension", International Journal of Adhesion & Adhesives, 21, pp.211~220 (2001)
- Pandurangan, P., "Vibration Analysis for Damage Detection in Metal-to-Metal Adhesive Joints", Experimental Mechanics, 46, pp.601~607 (2006)
- Puthillath, P.K., "Ultrasonic Guided Wave Inspection of Adhesive Joints: A Parametric Study for a Step-Lap Joint", Review of Progress in Quantitative Nondestructive Evaluation: Proceedings of the 35th Annual Review of Progress in Quantitative Nondestructive Evaluation, 통권 : 1096, pp.1127~1133 (2009)
- Richardson, G., "A Comparison of Two and Three-Dimensional Finite Element Analysis of Adhesive Joints", International Journal of Adhesion & Adhesives, 13, pp.193~200 (1993)
- Rose, J.L., "Ultrasonic Guided Waves for NDE of Adhesively Bonded Structures", Journal of Adhesion, 50, pp.71~82 (1995)
- Tong, L., "Analysis and Design of Structural Bonded Joints" (1999), Kluwer Academic Publishers
- Wooley, G.R., "Stress Concentration Factors for Bonded Lap Joint", Journal of Aircraft, 8, pp.817~820 (1971)
- 우진호, "Finite Element Simulation of Elastic Wave Propagation in a Concrete Plate - Modeling and Damage Detection", 한국해양공학회지, 21(6), pp.26~33 (2007), 한국해양공학회
- Zeng, Q., "Novel Design of Bonded Lap Joint", AIAA Journal, 39, pp.1991~1996 (2001)