DOI QR코드

DOI QR Code

인공발(Prosthetic Foot) 스프링용 유리섬유강화 적층재의 적층배향에 따른 층간분리거동 해석

Analysis of Delamination Behavior on the Stacking Sequence of Prosthetic Foot Keel in Glass fiber Reinforced Laminates

  • 송삼홍 (고려대학교 기계공학과) ;
  • 김철웅 (고려대학교 대학원 기계공학과)
  • 발행 : 2003.04.01

초록

It is considered that the application of advanced composite materials to the prostheses for the disables is important to improve their bio-mechanical performance. Particularly, energy storing foot prosthesis is mostly important to restore gait ability of the disables with low-extremity amputation since it could provide propulsion at terminal stance enhancing the disables ability to walk long distance even run and jump. Therefore, the energy storing spring of Prosthetic foot keel under cyclic bending moment use mainly of high strength glass fiber reinforced plastic. The main objective of this study was to evaluate the stacking sequence effect using the delamination growth rate(dA$_{D}$/dN) of energy storing spring in glass fiber reinforced plastic under cyclic bending moment. The test results indicated that the shape of delamination zone depends on stacking sequence in GFRP laminates. Delamination area(A$_{D}$) turns out that variable types with the contour increased non-linearly toward the damage zones.nes.

키워드

참고문헌

  1. Lee D. H., Jang T. S., Lee J. J. and Yoon Y. S., 2000, 'A Study on the Design of the Keel in the Energy Storing Prosthetic Foot Using the Finite Element Analysis and the Taguchi Method,' Transactions of the KSME, A, Vol. 24, No.3, pp. 613 -624
  2. Kim Chang-Boo and Cho Hyeon-Seok, 1998. 'A Study on the Trajectory Optimization Planning of Biped Walking Machine,' Journal of the KSPE, Vol. 15, No.3, pp. 157-167
  3. Youm Young-Il, 2000, 'Bio-Robots and Intelligent Prosthetics,' Journal the of KSPE, Vol. 17, No. 11. pp. 36-42
  4. Richard W. Hertzberg, 1996, Deformation and Fracture Mechanics of Engineering Materials, John Wiley & Sons lnc., Philadelphia, pp. 591-606
  5. 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
  6. Kim C.. Kang T. J., Yook J. I. and Park J. K., 1995. 'Effect of the Intra-ply Hybridization on the Mechanical Properties of Kevlar/Spectra Woven Laminated Composite,' Journal of the KSCM, Vol. 8, No. 3. pp. 25-35
  7. Song Sam-Hong and Kim Cheol-Woong, 2003, 'The Analysis of Fatigue Behavior Using the Delamination Growth Rate$(dA_D/da)$ and Fiber Bridging Effect Factor$(F_{BE})$ in AI/GFRP Laminates,' Transactions of the KSME, A, Vol. 27, No.2, pp. 317-326 https://doi.org/10.3795/KSME-A.2003.27.2.317
  8. Ronald F. Gibson, 1994, Principles of Composite Materials, McGraw-Hill Inc., New York. pp. 34-269
  9. Kim H. J. and Hong C. S., 1995, 'Influence of Couplings on the Buckling Behavior of Composite Laminates with a Delamination,' Transactions of the KSME, A, Vol. 19, No.2, pp. 354-362

피인용 문헌

  1. Design of Carbon Composite Prosthetic Feet using Finite Element Methods vol.30, pp.7, 2013, https://doi.org/10.7736/KSPE.2013.30.7.769