engleski

Testing of pipecross ring samples

Analysis of existing test methods to determine the properties of pipes shows that tensile testing of cross ring samples, or pipe section samples (PSS) are simple and comparatively accurate. To eliminate plastic deformation in one of the supporting cross-sections, usage of a stress concentrator was proposed. This is due to the relative simplicity of its implementation in comparison with the other technical solutions. For samples made of 1.4401 (EN 10027) austenitic steel and 1.0580 (EN 10297-1) steel, the ratio of the areas in the diametrically opposite sample parts were determined which ensure plastic deformation only in only one of the samples parts during the tension.

pipecross ring samples ; tensile testing ; stress concentrator

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