Abstract
Charpy impact tests have been carried out on specimens removed from the joint region in butt fusion-welded polyethylene pipe. In order to ensure that crack initiation occurs precisely at the weld line, a novel method of notching has been used. G c data have been derived from these tests, which were conducted at temperatures of – 150 and 23 °C. Results obtained from pendulum impact and instrumented falling weight tests show consistent differences, probably attributable to the speed of impact. Data have also been obtained for the parent unwelded material.
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M. J. Folkes and J. Haunton, (1991) to be published.
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Folkes, M.J., Haunton, J., Wong, F.S. et al. Novel approach to the impact testing of butt fusion-welded joints. J Mater Sci 27, 2807–2810 (1992). https://doi.org/10.1007/BF00540708
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DOI: https://doi.org/10.1007/BF00540708