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Improved method for determining the stress relaxation at the crack tip

  • Diagnostics and Mechanical Test Techniques
  • Published:
Russian Metallurgy (Metally) Aims and scope

Abstract

A technique is suggested to determine the stress relaxation at the crack tip during tests of a specimen of a new type at a constant crack opening fixed by a stay bolt. The shape and geometry of the specimen make it possible to set the load and to determine the crack closure force after long-term exposure using the force transducer of a tensile-testing machine. The stress relaxation at the crack tip is determined in a V95pchT2 alloy specimen at elevated temperatures.

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Authors and Affiliations

  1. All-Russia Institute of Aviation Materials VIAM, ul. Radio 17, Moscow, 105005, Russia

    A. V. Grinevich, V. S. Erasov & V. V. Avtaev

Authors
  1. A. V. Grinevich
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  2. V. S. Erasov
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  3. V. V. Avtaev
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Correspondence to A. V. Grinevich.

Additional information

Original Russian Text © A.V. Grinevich, V.S. Erasov, V.V. Avtaev, 2017, published in Deformatsiya i Razrushenie Materialov, 2017, No. 9, pp. 40–44.

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Grinevich, A.V., Erasov, V.S. & Avtaev, V.V. Improved method for determining the stress relaxation at the crack tip. Russ. Metall. 2017, 901–904 (2017). https://doi.org/10.1134/S0036029517100081

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  • DOI: https://doi.org/10.1134/S0036029517100081

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