Advanced SearchSearch Tips
Mechanical behavior of the composite curved laminates in practical applications
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Mechanical behavior of the composite curved laminates in practical applications
Liu, Lonquan; Zhang, Junqi; Wang, Hai; Guan, Zhongwei;
In order to determine the mechanical behavior of the curved laminates in practical applications, three right-angled composite brackets with different lay-ups were investigated both experimentally and numerically. In the experimental, quasi-static tests on both unidirectional and multidirectional curved composite brackets were conducted to study the progressive failure and failure modes of the curved laminates. In the numerical modeling, three-dimensional finite element analysis was used to simulate the mechanical behavior of the laminates. Here, a strength-based failure criterion, namely the Ye criterion, was used to predict the delamination failure in the composite curved laminates. The mechanical responses of the laminate subjected to off-axis tensile loading were analyzed, which include the progressive failure, the failure locations, the load-displacement relationships, the load-strain relationships, and the stress distribution around the curved region of the angled bracket. Subsequently, the effects of stacking sequence and thickness on the load carrying capacity and the stiffness of the laminates were discussed in detail. Through the experimental observation and analysis, it was found that the failure mode of all the specimens is delamination, which is initiated abruptly and develops unstably on the symmetric plane, close to the inner surface, and about along the circumferential direction. It was also found that the stacking sequence and the thickness have significant influences on both the load carrying capacity and the stiffness of the laminates. However, the thickness effect is less than that on the curved aluminum plate.
curved laminate;mechanical behavior;finite element;stacking sequence;delamination;
 Cited by
ASTM Committee (2007), ASTM D 6415/D 6415M-06: Standard test method for measuring the curved beam strength of a fiber-reinforced polymer-matrix composite.

Chang, F. and Springer, G.S. (1986), "The strength of fiber reinforced composite bends", J. Compos. Mater., 20(1), 30-45. crossref(new window)

Cui, W.C., Liu, T., Len, J.X. and Ruo, R. (1996), "Interlaminar Tensile Strength (ILTS) measurement of woven glass/polyester laminates using four-point curved beam specimen", Compos. Part A, 27(11), 1097-1105. crossref(new window)

Herrington, P.D. and Sabbaghian, M. (1991), "Factors affecting the friction coefficients between metallic washers and composite surfaces", Compos., 22(6), 418-424. crossref(new window)

Hibbitt, D., Karlsson, B. and Sorensen, P. (2011), ABAQUS documents (version 6.10), Dassault Systemes Simulia Corporation, Providence, RI, USA.

Joh, D. (1990), "A semi-micromechanic interlaminar strain analysis on curved-beam specimens", NASA Contactor report-NASA CR; 189512.

Lekhnitskii, S.G. (1987), Anisotropic Plates, (3rd Edition), Gordon and Breach Science Publishers, New York, NY, USA.

Lin, C.W. (2010), "Finite deformation of 2-D thin circular curved laminated beams", Hsiuping J., 22, 19-34.

Lin, K.C and Hsieh, C.M. (2007), "The closed form general solutions of 2-D curved laminated beams of variable curvatures", Compos. Struct., 79(4), 606-618. crossref(new window)

Lin, K.C. and Hsieh, C.M. (2011), "Finite deformation of 2-D laminated curved beams with variable curvatures", Int. J. Non-Linear Mech., 46(10), 1293-1304. crossref(new window)

Mechanical Properties of CYCOM(R) 977-2-35%-24KIMS-198-600, Technical Service Cytec Engineered Materials.

Miao, Y., Li, J., Gong, Z., Xu, J., He, K., Peng, J. and Cui, Y. (2013), "Study on the effect of cure cycle on the process induced deformation of cap shaped stiffened composite panels", Appl. Compos. Mater., 20(4), 709-718. crossref(new window)

Military Handbook--MIL-HDBK-5F (2003), Metallic Materials and Elements for Aerospace Vehicle Structures, Department of Defense, USA.

Mukundan, S. (2003), "Structural design and analysis of a lightweight composite sandwich space radiator panel", Master Thesis; Mechanical Engineering, Texas A&M University, TX, USA.

Ng, S.P., Tse, P.C. and Lau, K.J. (2001), "Progressive failure analysis of 2/2 twill weave fabric composites with moulded-in circular hole", Compos. Part B-Eng., 32(2), 139-152. crossref(new window)

Nguyen, T. (2010), "Effects of curvature on the stresses of a curved laminated beams subjected to bending", Master thesis, The University of Texas at Arlington, Arlington, TX, USA.

Padhi, G.S., McCarthy, M.A. and McCarthy, C.T. (2002), "BOLJAT: a tool for designing composite bolted joints using three-dimensional finite element analysis", Compos. Part A, 33, 1573-1584. crossref(new window)

Roos, R. (2008), "Model for interlaminar normal stress in doubly curved laminates", Ph.D. Dissertation; Swiss Federal Institute of Technology, Zurich, Swiss.

Rosales-Iriarte, F., Fellows, N.A. and Durodola, J.F. (2012), "Failure prediction in carbon compression subjected to bearing versus bypass loading", J. Compos. Mater., 46(15), 1859-1878. crossref(new window)

Shimizu, T. and Abe, T. (2013), "Tool material effects on process induced deformation of composite spar structures", Proceedings of the 19th International Conference on Composite Materials, Montreal, Canada, August, pp. 1003-1010.

Sorrentino, L. and Bellini, C. (2013), "Numerical study of compaction influence on spring-in of thin composite components manufactured by vacuum bag process", Proceedings of the 19th International Conference on Composite Materials, Montreal, Canada, August, pp. 9095-9103.

Sun, J., Gu, Y.Z., Li, M., Li, Y.X. and Zhang, Z.G. (2013), "Relationship between slipping friction prepreg stacks and forming quality of hot diaphragm formed c-shaped thermosetting composite laminates", Proceedings of the 19th International Conference on Composite Materials, Montreal, Canada, August, pp. 3066-3075.

Wan, Y., Goto, T., Matsuo, T., Takahashi, J. and Ohsawa, I. (2013), "Investigation about fracture mode and strength in curved section of carbon fiber reinforced polypropylene", Proceedings of the 19th International Conference on Composite Materials, Montreal, Canada, August, pp. 6695-6702.

Wimmer, G., Kitzmuller, W., Pinter, G., Wettermann, T. and Pettermann, H.E. (2009), "Computational and experimental investigation ofdelamination in L-shaped laminated composite components", Eng. Fract. Mech., 76(18), 2810-2820. crossref(new window)

Wisnow, M.R., Petrossian, Z.J. and Jones, M.I. (1996), "Interlaminar failure of unidirectional glass/epoxy due to combined through thickness shear and tension", Compos. Part A, 27(10), 921-929. crossref(new window)

Ye, L. (1988), "Role of matrix resin in delamination onset and growth in composite laminates", Compos. Sci. Technol., 33(4), 257-277. crossref(new window)