This paper focuses on the probability modeling of fiber composite strength, wherein the failure modes are dominated by fiber tensile failures. The probability model is the tri-modal local load-sharing model, which is the Phoenix-Harlow local load-sharing model with the filament failure model extended from one mode to three modes. This model results in increased efficiency in the determination of fiber statistical parameters and in lower cost when applied to (i) quality control in materials (fiber) manufacturing, (ii) materials (fiber) selection and comparison, (iii) accounting for the effect of size scaling in design, and (iv) qualification and certification of critical composite structures that are too large and expensive to test statistically. In addition, possible extensions to proof testing and time-dependent life prediction are discussed and preliminary data are presented.
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January 2006
Research Papers
Fiber Composite Strength Modeling With Extension to Life Prediction
John L. Kardos
e-mail: kardos@wustl.edu
John L. Kardos
Washington University
, Department of Chemical Engineering, 1 Brookings Drive, Campus Box 1198, St. Louis, MO 63130
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Edward M. Wu
Professor Emeritus
John L. Kardos
Washington University
, Department of Chemical Engineering, 1 Brookings Drive, Campus Box 1198, St. Louis, MO 63130e-mail: kardos@wustl.edu
J. Eng. Mater. Technol. Jan 2006, 128(1): 41-49 (9 pages)
Published Online: September 23, 2005
Article history
Received:
August 24, 2004
Revised:
September 23, 2005
Citation
Wu, E. M., and Kardos, J. L. (September 23, 2005). "Fiber Composite Strength Modeling With Extension to Life Prediction." ASME. J. Eng. Mater. Technol. January 2006; 128(1): 41–49. https://doi.org/10.1115/1.2128424
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