Abstract
Specimens of a 90° cross-ply glass-reinforced polyester were tested in tension in a direction parallel to one of the directions of reinforcement. Extensive cracking of the transverse ply occurred at strains much lower than the resin failure strain. These cracks formed in a direction parallel to the transverse reinforcement and showed a remarkably even crack spacing. Results of crack spacing measurements are presented against applied stress for specimens with differing transverse-ply thicknesses. The transverse-crack spacing was found to decrease with increasing applied stress and to increase with increasing transverseply thickness. There was no evidence of debonding between the plies during cracking and a multiple cracking theory in which the plies remain elastically bonded has been presented which can account for the results.
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References
L. J. Broutman andF. J. McGarry, 17th Reinforced Plastics Conference (Society of Plastics Industry, New York, 1962) Section 1E.
L. J. Broutman andH. Krock, “Modern Composite Materials” (Addison-Wesley, New York, 1967) Chapter 13.
M. J. Owen andR. Dukes,J. Strain Anal. 2 (1967) 272.
F. J. McGarry “Fundamental Aspects of Fibre Reinforced Plastic Composites”, edited by R. T. Schwartz and H. S. Schwartz (Wiley, Kingston, 1968) pp. 63–87.
T. R. Smith andM. J. Owen, 23rd Reinforced Plastics Conference (Society of Plastics Industry, New York, 1968).
A. D. S. Diggwa andR. H. Norman, RAPRA Research Report 194, (July 1971).
E. Pink andJ. D. Campbell,J. Mater. Sci. 9 (1974) 658.
H. T. Hahn andS. W. Tsai,J. Comp. Mater. 8 (1974) 288.
J. A. Kies, U.S. Naval Research Laboratory Report No. 5752 (1962)
L. R. Herman andK. S. Pister, ASME (1963) Paper 63-WA-239.
J. C. Schulz, 18th Annual Meeting of the Reinforced Plastics Division Illinois (Society of Plastics Industry, New York, 1966) Section 7-D.
P. E. Ball andJ. A. Raymond, Conference on Designing to avoid Mechanical Failure, Cranfield (Plastics Institute, London, 1973) Paper 2.
G. Niederstadt,Kunstoffe 53 (1963) 355.
L. J. Broutman,Polymer Eng. Sci. 6 (1966) 263.
A. Puck,Kunstoffe 57 (1967) 965.
J. Aveston, G. A. Cooper andA. Kelly, “The Properties of Fibre Composites” Conference Proceedings, National Physical Laboratory (IPC, London, 1971) p. 15.
J. Aveston andA. Kelly,J. Mater. Sci. 8 (1973) 352.
H. G. Allen,J. Comp. Mater. 5 (1971) 194.
A. Majumdar,Proc. Roy. Soc. A319 (1970) 69.
H. G. Allen, “The Properties of Fibre Composites”, Conference Proceedings, National Physical Laboratory, (IPC, London, 1971) p. 25.
G. A. Cooper andJ. M. Sillwood,J. Mater. Sci. 7 (1972) 325.
J. Aveston, R. A. Mercer andJ. M. Sill- wood “Composites Standards Testing and Design” Conference proceedings, National Physical Laboratory 8/9 April (IPC 1974) p. 93.
H. L. Cox,Brit. J. Appl. Phys. 3 (1952) 72.
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Garrett, K.W., Bailey, J.E. Multiple transverse fracture in 90° cross-ply laminates of a glass fibre-reinforced polyester. J Mater Sci 12, 157–168 (1977). https://doi.org/10.1007/BF00738481
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DOI: https://doi.org/10.1007/BF00738481