Abstract
IT is not uncommon to subject rubber-to-metal bonded components to tensile loads lower than that required to break a well-bonded unit as a routine check of the bonding efficacy1. We have observed that internal fractures occur in soft vulcanized natural rubber cylinders bonded to metal end-pieces when subjected to comparatively low tensile loads. Such internal flaws may well pass undetected, but their presence might be expected to impair the strength, service behaviour and life. No previous account of their occurrence is known to us.
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References
Buchan, S., Trans. Inst. Rubber Ind., 19, 25 (1943); “Rubber to Metal Bonding”, 232 (London, 1948).
Gent, A. N., Proc. Rubber Eng. Conf., 25 (Natural Rubber Development Board, London, 1956).
Bull, T. H., Phil. Mag., 1, 153 (1956).
Buist, J. M., Trans. Inst. Rubber Ind., 25, 378 (1949).
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GENT, A., LINDLEY, P. Internal Flaws in Bonded Cylinders of Soft Vulcanized Rubber subjected to Tensile Loads. Nature 180, 912–913 (1957). https://doi.org/10.1038/180912a0
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DOI: https://doi.org/10.1038/180912a0
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