It is shown that, under certain conditions, simultaneous improvement of vibration damping capacity and interlaminar fracture toughness in composite laminates can be achieved by using polymeric interleaves between the composite laminae. The specific case of Mode II interlaminar fracture toughness and flexural damping capacity of interleaved composite laminates is studied. Graphite/epoxy, E-glass/epoxy and E-glass/polyetherimide composite laminates with polymeric interleaves of several different thicknesses and materials were tested using both the end notch flexure (ENF) test for Mode II fracture toughness and the impulse-frequency response test for flexural damping capacity. The Mode II energy release rate for all three composites increased linearly with increasing interleaf thickness up to a critical thickness, then dropped off with further increases in thickness. The damping loss factor η for all three composites increased linearly with increasing interleaf thickness up to the maximum thickness. Analytical models for predicting the influence of interleaves on and η are developed, along with a hypothesis for the critical thickness effect with regard to fracture toughness.
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July 2001
Technical Papers
Improvement of Vibration Damping Capacity and Fracture Toughness in Composite Laminates by the Use of Polymeric Interleaves
Ronald F. Gibson, Fellow ASME,
Ronald F. Gibson, Fellow ASME
Department of Mechanical Engineering, Advanced Composites Research Laboratory, Wayne State University, Detroit, MI 48202
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Yu Chen,
Yu Chen
Department of Mechanical Engineering, Advanced Composites Research Laboratory, Wayne State University, Detroit, MI 48202
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Hui Zhao
Hui Zhao
Ford Motor Company, Dearborn, MI
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Ronald F. Gibson, Fellow ASME
Department of Mechanical Engineering, Advanced Composites Research Laboratory, Wayne State University, Detroit, MI 48202
Yu Chen
Department of Mechanical Engineering, Advanced Composites Research Laboratory, Wayne State University, Detroit, MI 48202
Hui Zhao
Ford Motor Company, Dearborn, MI
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division February 1, 2000; revised manuscript received January 18, 2001. Associate Editor: S. Mall.
J. Eng. Mater. Technol. Jul 2001, 123(3): 309-314 (6 pages)
Published Online: January 18, 2001
Article history
Received:
February 1, 2000
Revised:
January 18, 2001
Citation
Gibson, R. F., Chen, Y., and Zhao, H. (January 18, 2001). "Improvement of Vibration Damping Capacity and Fracture Toughness in Composite Laminates by the Use of Polymeric Interleaves ." ASME. J. Eng. Mater. Technol. July 2001; 123(3): 309–314. https://doi.org/10.1115/1.1370385
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