Browse > Article

Analysis of Shear Characteristics of Angle-Ply Laminates with Non-woven Tissue by FEM  

이승환 (일본 규슈대학 대학원 공학부)
정성균 (서울산업대학교 기계공학과)
Publication Information
Korean Journal of Crystallography / v.13, no.2, 2002 , pp. 69-72 More about this Journal
Abstract
The interlaminar problems near the free edge of composite laminates are analyzed in this paper. CFRP specimen (［+40/-40］s) and interleaved specimen (［+40//-40］s) with non-woven carbon tissue (NWCT) are discussed under tensile loading condition. The symbol “//”means that the NWCT is located between the CFRP interfaces. The NWCT has carbon short fibers which are discretely distributed with the in-plane random orientation. It was reported/sup 3)/ that the Mode Ⅱ interlaminar fracture toughness of CFRP laminates with NWCT is increased largely and the Mode I interlaminar fracture toughness is not changed significantly. Mode Ⅲ interlaminar fracture toughness is also an important factor in composite structures. But it is not easy to experimentally investigate the Mode Ⅲ interlaminar fracture toughness. The objective of this work is to study the effect of the NWCT and to fundamentally understand the Mode Ⅲ interlaminar shear characteristics of laminated composites with NWCT in the vicinity of a free edge by using finite element method analysis.
Keywords
Citations & Related Records
연도 인용수 순위
  • Reference
1 Lee, S. H. and Noguchi, H., 'Shear Characteristics of Hybrid Composites with Non-Woven Carbon Tissue', JSME International Journal A, 44, 4, 535 (2001)
2 Lee, S. H., 'A Study on Development of Hybrid Composites with Non-Woven Tisssue', Ph.D Dissertation, Faculty of Engineering, Kyushu University (2002)
3 Lee, S. H., Kim, Y. B. and Noguchi, H., 'Interlaminar Fracture Toughness of Hybrid Composites with Non-Woven Tissue (1st Report, Mode I Interlaminar Fracture Toughness)', Transactions of the Japan Society of Mechanical Engineering A, 661, 67, 1471 (2001)
4 Pipes, R. B. and Pagano, N. J., 'Interlaminar Stresses in Composite Laminates Under Uniform Axial Extension', Journal of Composite Materials, 4, 538 (1970)
5 Lee, S. H., Noguchi, H. and Cheong, S. K., 'Tensile Properties and Fatigue Characteristics of Hybrid Composites with Non-Woven Carbon Tissue', International Journal of Fatigue, 24, 397 (2002)
6 Marissen, R., 'Flight Simulation Behaviour of Aramid Reinforced Aluminum Laminates (ARALL)', Engineering Fracture Mechanics, 19, 261 (1984)