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Abstract

The impact response and the impact-induced damage in a curved composite laminate subjected to transverse impact by a metallic impactor are studied using a three-dimensional finite element method. Several example problems of a graphite/epoxy cylindrical shell are considered and effects of impactor parameter (impactor velocity and impactor mass) and laminate characteristics (shell curvature and fiber orientation of plies) are established. Impact-induced damages (matrix cracking and delamination) are predicted using appropriate three-dimensional stress-based failure criteria. In order to take account of degradation of material due to damage during the impact, the stiffness matrix of the failed region of the laminate is reduced as the solution progresses.

Keywords

polymer matrix composites curved laminates impact behavior impact-induced damage finite element analysis stiffness reduction.

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References

Abrate, S. (1991). Impact on Laminated Composite Materials, Applied Mechanics Review, 44: 155—190.

Cantwell, W.J. and Morton, J. (1991). The Impact Resistance of Composite Materials — A Review, Composites, 22: 347—362.

Aggour, H. and Sun, C.T. (1988). Finite Element Analysis of a Laminated Composite Plate Subjected to Circularly Distributed Central Impact Loading, Computers and Structures, 28(6): 729—736.

Nosier, A. , Kapania, R.K. and Reddy, J.N. (1994). Low Velocity Impact of Laminated Composites using a Layerwise Theory, Computational Mechanics, 13: 360—379.

Wu, H.T. and Springer, G.S. (1988). Impact Induced Stresses, Strains, and Delaminations in Composite Plates, Journal of Composite Materials, 22: 533—560.

Wu, H.T. and Chang, F.K. (1989). Transient Dynamic Analysis of Laminated Composite Plates Subjected to Transverse Impact, Computers and Structures , 31: 453—466.

Pradhan, B. and Kumar, S. (2000). Finite Element Analysis of Low-Velocity Impact Damage in Composite Laminates., Journal of Reinforced Plastics & Composites, 19: 322—339.

Chandrashekhara, K. and Schroeder, T. (1995). Nonlinear Impact Analysis of Laminated Cylindrical and Doubly Curved Shells, Journal of Composite Materials, 29(16): 2160—2179.

Krishnamurthy, K.S. , Mahajan, P. and Mittal, R.K. (2001). A Parametric Study of the Impact Response and Damage of Laminated Cylindrical Composite Shells , Composite Science and Technology, 61(12): 1655—1669.

10.

Kim, S.J. , Goo, N.S. and Kim, T.W. (1997). The Effect of Curvature on the Dynamic Response and Impact-induced Damage in Composite Laminates, Composite Science and Technology, 57(7): 763—773.

11.

Her, S.-C. and Liang, Y.-C. (2004). The Finite Element Analysis of Composite Laminates and Shell Structures Subjected to Low Velocity Impact, Composite Structures, 66: 277—285.

12.

Yang, S.H. and Sun, C.T. (1982). Indentation Law for Composite Laminates, ASTM STP, 787: 425—449.

13.

Liu, D. (1988). Impact Induced Delamination — A View of Bending Stiffness Mismatching, Journal of Composite Materials , 22: 674—692.

14.

Finn, S.R. and Springer, G.S. (1993). Delamination in Composite Plates under Transverse Static or Impact Loads — A Model, Composite Structures , 23(3): 177—190.

15.

Choi, H.Y. and Chang, F.K. (1992). A Model for Predicting Damage in Graphite/Epoxy Laminated Composites from Low-Velocity Point Impact, Journal of Composite Materials, 26: 2134—2169.

16.

Hashin, Z. (1980). Failure Criteria for Unidirectional Fibre Composites , Journal of Applied Mechanics, 47: 329—334.

17.

Choi, H.Y. , Wu, H.-Y.T. and Chang, F.K. (1991). A New Approach Towards Understanding Damage Mechanisms and Mechanics of Laminated Composites Due to Low-Velocity Impact: Part II — Analysis, Journal of Composite Materials, 25: 1012—1038.

18.

Takeda, N. , Sierakowski, R.L. and Malvern, L.E. (1981). Wave Propagation Experiments on Ballistically Impacted Composite Laminates, Journal of Composite Materials , 15: 157—174.

Effect of Impactor Parameters and Laminate Characteristics on Impact Response and Damage in Curved Composite Laminates

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