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Abstract

In the present investigation a higher-order shear deformation theory (HST) and the conventional first-order theory (FST) are used to develop a finite element method to analyze the impact behavior of laminated composite beams. The higher-order theory assumes all the displacement components u, v, w that contain variation up to cubic power of z. The effects of various parameters, such as span to thickness ratios, support conditions and stacking sequence on the impact behavior of laminated composite beams are studied. Both eight-noded and nine-noded isoparametric elements are employed to compare the computational efficiency. However, to save computational time, numerical results are generated using only eight-noded isoparametric elements. The present results compare well with those of W. Goldsmith. It is observed that stresses computed using HST and FST exhibit wide variations.

Keywords

finite element analysis thick composites numerical analysis Hertzian contact impact interlaminar stress shear deformation stacking sequence

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References

1. Goldsmith, W. 1960. Impact. London: Edward Arnold (Publishers) Ltd.

2. Eringen, A. C. 1950. "Transverse Impact on Beams and Plates," ASME J. of Appl. Mech., 72:461-468.

3. Zener, C. and H. Feshbach . 1939. "A Method of Calculating Energy Losses During Impact," ASME J. of Appl. Mech., 61:A67-A70.

4. Lee, E. H. 1940. "The Impact of a Mass Striking a Beam," ASME J. of Appl. Mech., 62:A129-A138.

5. Hunter, S. C. 1957. "Energy Absorbed by Elastic Waves During Impact," J. of Mach. and Physics of Solids, 5:162-171.

6. Yang, S. H. and C. T. Sun . 1982. "Indentation Law for Composite Laminates," Composite Materials: Testing and Design, ASRM STP 787, American Society for Testing and Materials, 425-446.

7. Yang, S. H. and C. T. Sun . 1981. "Indentation Law for Composite Laminates," NASA CR-165460.

8. Tan, T. M. and C. T. Sun . 1985. "Use of Statical Indentation Laws in the Impact Analysis of Laminated Composite Plates," ASME J. of Appl. Mech., 52:6-12.

9. Sankar, B. V. and C. T. Sun . 1985. "Low Velocity Impact Response of Laminated Beams Subjected to Initial Stresses," AMAA J., 23:1962-1969.

10.

10. Sun, C. T. and J. K. Chen . 1985. "On the Impact of Initially Stressed Composite Laminates," J. of Composite Materials, 19:490-504.

11.

11. Cairns, D. S. and P. A. Lagace . 1989. "Transient Response of Graphite/Epoxy and Kevlar/Epoxy Laminates Subjected to Impact," AJAA J., 27:1590-1597.

12.

12. Cairns, D. S. and P. A. Lagace . 1992. 'A Consistent Engineering Methodology for the Treatment of Impact in Composite Materials," J. of Reinforced Plastics and Composites, 11:395-412.

13.

13. Wu, H.-Y. T. and F.-K. Chang . 1989. "Transient Dynamic Analysis of Laminated Composite Plates Subjected to Transverse Impact," Computers and Structures, 33:453-466.

14.

14. Choi, H. Y. and F.-K. Chang . 1992. 'A Model for Predicting Graphite/Epoxy Laminated Composites Resulting from Low-Velocity Point Impact," J. of Composite Materials, 62:2134-2169.

15.

15. Cook, R. D. , D. S. Malkus and M. E. Plesha . 1989. Concepts and Applications of Finite Element Analysis, Third Edition., John Wiley and Sons.

Impact Behavior of Thick Laminated Composite Beams

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