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TECHNICAL PAPERS

An Energy-Based Model of Longitudinal Splitting in Unidirectional Fiber-Reinforced Composites

[+] Author and Article Information
K. Oguni, G. Ravichandran

Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CA 91125

J. Appl. Mech 67(3), 437-443 (Dec 07, 1999) (7 pages) doi:10.1115/1.1311276 History: Received June 09, 1999; Revised December 07, 1999
Copyright © 2000 by ASME
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References

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Schultheisz,  C. R., and Waas,  A. M., 1996, “Compressive Failure of Composites, Part I: Testing and Micromechanical Theories,” Prog. Aerosp. Sci., 32, pp. 1–42.
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Figures

Grahic Jump Location
Schematics of unsplit and longitudinally split configurations of a unidirectional fiber composite
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Effect of surface energy and lateral confinement on compressive strength (G/VE stands for E-Glass/vinylester and C/ER stands for carbon/epoxy)
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Effect of surface energy and fiber volume fraction on unconfined compressive strength (σc=0) (G/VE stands for E-Glass/vinylester and C/ER stands for carbon/epoxy)
Grahic Jump Location
Effect of fiber volume fraction and lateral confinement on compressive strength (G/VE stands for E-Glass/vinylester and C/ER stands for carbon/epoxy)
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Comparison between experimental results (15) and model predictions for E-Glass/vinylester composite
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Comparison between experimental results (10) and model prediction for carbon/epoxy composite, vf=36 percent
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Comparison between experimental results (11) and model predictions with the effect of increasing surface energy for carbon/epoxy composite, vf=60 percent

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