Abstract
The size of a fibre affects its mechanical properties and thus is of theoretical and practical importance for studies of the rupturing process during loading of a fibrous structure. This paper investigates the overall effects of length on the mechanical behaviour of single fibres. Four types of fibres, ranging from brittle to highly extensible, were tested for their tensile properties at several different gauge lengths. Different from most previous studies where the focus has been on the gauge length effects on a single property such as fibre strength or breaking strain, this paper look comprehensively into the effects of length on all three of the most commonly studied mechanical properties, namely strength, breaking strain and initial modulus. Particular emphasis is placed on initial modulus and on the interactions between all three parameters. Influences of strain rate and fibre type on the size effects are also investigated. The effect of potential fibre slippage on experimental error is examined. An image analysis method is used to measure the real fibre elongation in comparison to the same fibre elongation obtained directly from an Instron tester. Finally, a statistical analysis is carried out using the experimental data to test the fitness of the Weibull theory to polymeric fibres. This was done as the Weibull model has been extensively utilized in examining fibre strength and breaking strain, although it is supposed to be valid only for the so-called classic fibres to which more extensible polymeric fibres do not belong.
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References
S. B. BATDORF J. Reinf. Plast. Compos. 1 (1982) 153.
S. B. BATDORF and R. GHAFFARIAN ibid. 1 (1982) 165.
D. G. HARLOW and S. L. PHOENIX Int. J. Fracture 17 (1981) 347
Idem, ibid. 17 (1981) 601.
B. W. ROSEN, AIAA J. 2 (1964) 1985.
C. ZWEBEN, ibid 6 (1968) 2325.
C. ZWEBEN and B. W. ROSEN, J. Mech. Phys. Solids 18 (1970) 189.
P. FEILLARD, G. DESARMOT and J. P. FAVRE, Compos. Sci. Technol. 50 (1994) 265.
B. D. COLMAN, J. Mech. Phys. Solids 7 (1958) 60–70.
F. T. PEIRCE, J. Textile Inst. 17 (1926) 355.
L. J. KNOX and J. C. WHITWELL, Textile Res. J. 41 (1971) 510.
A. S. WATSON and R. L. SMITH, J. Mater. Sci. 20 (1985) 3260.
P. SCHWARTZ, A. NETRAVALI and S. SEMBACH, Textile Res. J. 56 (1986) 502.
V. LAVASTE, J. BESSON and A. R. BUNSELL, J. Mater. Sci. 28 (1993) 6107.
Y. TERMONIA, J. Polym. Sci.: Part B: Polym. Phys. 33 (1995) 147.
Z. F. CHI, T. W. CHOU and G. SHEN, J. Compos. Mater. 17 (1983) 196.
J. B. MURGATROYD, J. Soc. Glass Technol. 28 (1994) 368.
S. BATESON, J. Appl. Physics 29 (1958) 13.
B. J. NORMAN and D. R. OAKLEY, Glass Technol. 12 (1971) 45.
G. PAHLER and R. BRUCKNER, Glastech. Ber. 58 (1995) 45.
M. W. SUH, Textile Res. J. 42 (1972) 438.
W. A. CURTIN, J. Amer. Ceram. Soc. 74 (1991) 2837.
N. PAN, J. Reinf. Plast. Compos. 14 (1995) 2.
Idem, J. Mater. Sci. 30 (1995) 2042.
“Instruction Manuals”, Instron Series IX Automated Testing System (Instron Inc., Canton, MA, 1992) p. 13.23.
W. MENDENHALL and T. SINCICH, “Statistics for Engineering and the Sciences”, 3rd Edn (Macmillan Publication Company, New York, 1992) p. 359.
W. E. MORTON and J. W. S. HEARLE, “Physical Properties of Textile fibres” (The Textile Institute, Manchester, 1992) p. 356.
Idem, ibid. The Textile Institute, Manchester, 1992) p. 314.
H. E. DANIELS, Proc. Roy. Soc. A183 (1945) 405.
K. V. BURY, “Statistical Models in Applied Science” (John Wiley & Sons, New York, 1975) p. 204.
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PAN, N., CHEN, H.C., THOMPSON, J. et al. The size effects on the mechanical behaviour of fibres. Journal of Materials Science 32, 2677–2685 (1997). https://doi.org/10.1023/A:1018679207303
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DOI: https://doi.org/10.1023/A:1018679207303