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하이브리드 복합재료의 섬유배향각이 피로균열 및 층간분리 거동의 관계에 미치는 영향
The Effect of Fiber Stacking Angle on the Relationship Between Fatigue Crack and Delamination Behavior in a Hybrid Composite Materials

송삼홍   (고려대학교 공학기술연구소 및 인덕대학 기계시스템UU0000159  ); 김철웅   (고려대학교 기계공학과UU0000159  );
  • 초록

    The hybrid composite material (Al/GFRP laminates) are applied to the fuselage and wing in a aircraft. Therefore, Al/GFRP laminates suffer from the cyclic bending moments. This study was to evaluate the effect of fiber stacking angle on the fatigue crack propagation and delamination behavior using the relationship between crack growth rate (da/dN) and stress intensity factor range (ΔK) in Al/GFRP laminates under cyclic bending moment. The variable delamination growth behavior in case of three different type of fiber orientations, i.e., [Al/O $_2$ /Al], [Al/+45 $_2$ /Al] and [Al/90 $_2$ /Al] at the interface of Al layer and glass fiber layer was measured by ultrasonic C-scan images. As results of this study, It represent that the delamination shape should turns out to have more effective characteristics on the fiber stacking angle. The extension of the delamination zone in case of [Al/+45 $_2$ /Al] and [Al/90 $_2$ /Al] were not formed along the fatigue crack profile. The shape of delamination zone depend on fiber stacking angle and the variable type with the delamination contour decreased non-linearly toward the crack tip at the Al layer.


  • 주제어

    하이브리드 복합재료 .   피로균열 .   층간분리 .   섬유배향각 .   균열 성장률, da/dN .   응력확대계수범위, $\delta$K .   층간분리 면적, $A_{D}$ , 섬유가교효과.  

  • 참고문헌 (11)

    1. Tohru Takamatsu, Takashi Matsumura, Norio Ogura, Toshiyuki Shimokawa, Yoshiaki Kakuta, 1999, Fatigue Crack Growth Properties of a GLARE3-5/4 fiber/metal Laminate,' Engineering Fracture Mechanics, Vol. 63, pp. 253-272. 
    2. Marissen, R., 1988, 'Fatigue Crack Growth in ARALL;A Hybrid Aluminum-Aramid Composite Material:Crack Growth Mechanism and Quantitative Prediction of the Crack Growth Rates,' Ph. D. Thesis, Delft University of Technology, The Netherlands. 
    3. Roebroeks, G. H. J. J., 1986, 'Observations on Cyclic Delamination in ARALL Under Fatigue Loading,' Report LR-496, Dept. of Aerospace Eng. Delft Univ. of Tech., Netherlands. 
    4. Sam-Hong Song and Cheol-Woong Kim, 2004, 'Evaluation of Delamination Behavior in Hybrid Composite Using the Relationship Between Crack Length and Delamination Width,' Transactions of the KSME, A, Vol. 28, No. 1, pp. 55-62     
    5. Sam-Hong Song and Cheol-Woong Kim, 2003, 'The Fatigue Behavior and Delamination Properties in Fiber Reinforced Aramid Laminates -Case (I) AFRP/AI Laminates- ,' KSME International Journal, Vol. 17, No. 3, pp. 343-349     
    6. Bucci, R.J., Mueller, L.N., Vogelesang, L. B. and Gunnink, J. W., 1989, Treatise on Material Science and Technique, Vol. 31, No. 295 
    7. Sam-Hong Song and Cheol-Woong Kim, 2000, 'The Influence of Resin Mixture Ratio for the Use of Prepreg on the Fatigue Behavior Properties in FRMLs,' KSPE International Journal, Vol. 1, No. 1, pp. 33-41     
    8. Lee, Y.S., Lee, Y. W. and Na, M. S., 1990, 'Optimal Design of Hybrid Laminated Composite Plates,' Transactions of the KSME, A, Vol. 14, No. 6, pp. 1391-1407.     
    9. Sam-Hong Song and Cheol-Woong Kim, 2003, Analysis of Delamination Behavior on the Stacking Sequence of Prosthetic Foot Keel in Glass Fiber Reinforced Laminates,' Transactions of the KSME, A. Vol. 27, No. 4, pp. 623-631     
    10. Kim.C., Kang, T.J. Yook, J. I. and Park, J. K., 1995, 'Effect of the Intraply Hybridization on the Mechanical Properties of Kevlar/Spectra Woven Laminated Composite,' Journal of the KSCM, Vol. 8, pp. 25-35. 
    11. Choi, N.S. and Kinloch, A. J., 1998, 'Delamination Behavior of Multidirectional Laminates under the Mode Ⅰ Loading,' Transactions of the KSME, A, Vol. 22, No. 3, pp. 611-623.     
  • 이 논문을 인용한 문헌 (3)

    1. Yoon Kwang-Joon ; Kim Cheol-Woong 2006. "Prediction of the Total Effective Moment (ME) Using Stroke Range in Lightweight Piezoelectric Composite Actuator(LIPCA)" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 30(2): 120~127     
    2. Hong Jung-Hwa ; Yoon Kwang-Joon ; Kim Cheol-Woong 2006. "Proposal of Equation on Changable Performance Stroke (Δ h) and Radius of Curvature (ρ) According to the CERP Ply Orientation in PZTCA" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 30(3): 318~327     
    3. Kim, Cheol-Woong ; Ko, Young-Ho ; Lee, Gun-Bok 2007. "The Effect of Defect Location Near a Circular Hole Notch on the Relationship Between Crack Growth Rate (da/dN) and Stress Intensity Factor Range (δK) - Comparative Studies of Fatigue Behavior in the Case of Monolithic Al Alloy vs. Al/GFRP Laminate -" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 31(3): 344~354     

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