Abstract
Mechanical properties of Polyvinyl-alcohol (PVA) fibre bundles were studied at three high strain rates (270/s, 600/s and 1500/s). It was found that, except for the elastic modulus, which remains unchanged, both the maximum stress and the failure strain show an apparent increase with strain rate. Two failure modes of PVA fibre under tensile impact were observed. A four-parameter Weibull function was adopted to describe the strength distribution of PVA fibre and the Weibull parameters were obtained by a fibre bundle testing method. Consistency between simulated and experimental results indicates that such a function and the method are valid and reliable.
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References
Meyers, M. A., Dynamic Behavior of Materials, John Wiley & Sons, Inc., 1994.
Xia, Y. M., Yuan, J. M., and Yang, B. C., 'A statistical model and experimental study of the strain-rate dependence of the strength of fibers', Composite Sci. & Tech. 52, 1994, 499–504.
Wang, Z. and Xia, Y. M., 'Experimental evaluation of the strength of fibers under high strain rates by bimodal Weibull distribution', Composite Sci. & Tech. 57, 1997, 1599–1607.
Wang, Y. and Xia, Y. M., 'The effects of strain rate on the mechanical behaviour of kevlar fiber bundles: an experimental and theoretical study', Composites Part A 29A, 1998, 1411–1415.
Chi, Z. F., Zhou, T. W., and Shen, G., 'Determination of single fiber strength distribution from fiber bundle testing', J. Mater. Sci. 19, 1984, 3319–3324.
Dong, L. M., Xia, Y. M., and Yang, B. C., 'Tensile impact testing of fiber bundles', ISCTAD Proc., Bangalore, 1990, pp. 184–189.
Zukas, J. A., Nicholas, T., Swift, H. F., Greszczuk, L. B., and Curran, D. R. C., Impact Dynamics, pp. 180–332, John Wiley & Sons, Inc., 1982.
Morgan, R. J., Pruneda, C. O., and Steele, W. J., 'The relationship between the physical structure and the microscopic deformation and failure process of poly fibers', J. Polymer Science 21, 1983, 1757–1783.
Sonderman, D., Jakus, K., Ritter Jr., J. E., Yuhaski, S., and Service, T. H., 'Maximum likelihood estimation techniques for concurrent flaw subpopulations', J. Mater. Sci. 20, 1985, 207–212.
Easier, T. E., Bradt, R. C., and Tressler, R. E., 'Concurrent flaw populations in SiC', J. Amer. Ceram. Soc. 64, 1981, C53-C55.
Goda, K. and Fukunaga, H., 'The evaluation of the strength distribution of silicon carbide and alumina fibers by a multi-modal Weibull distribution', J. Mater. Sci. 21, 1986, 4475–4480.
Marquardt, D. W., 'An algorithm for least squares estimation of nonlinear parameters', JSIAM 11(2), 1963, 431–441.
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Wang, Y., Xia, Y. & Jiang, Y. Tensile Behaviour and Strength Distribution of Polyvinyl-Alcohol Fibre at High Strain Rates. Applied Composite Materials 8, 297–306 (2001). https://doi.org/10.1023/A:1011244817987
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DOI: https://doi.org/10.1023/A:1011244817987