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V. Panasyuk, Ya. Ivanytskyi, O. Hembara
Engineering Fracture Mechanics, Volume 83, March 2012
Abstract
Deformation and force criteria of the limiting-equilibrium state for a plate with an arbitrarily oriented crack under tension and under the influence of hydrogen-containing environment are proposed. The experimental investigations of the limiting-equilibrium state of lamellar specimens made of 09G2S steel with a central inclined crack in hydrogen environment and also in air under tension with different initial crack inclination angles were performed to check the criteria. Under specimen fracture the forces of the crack start were recorded. Experimental data agree well with calculation dependences.
Additional Information:
The special laboratories for characterisation of strength and fracture toughness of structural materials under complex loading in aggressive environments (hydrogen, hydrogen sulphide, corrosive liquids, etc.) under increased parameters (pressure and high temperature) operate at the Institute. Here the fracture mechanics methods for serviceability assessment of structural components with stress concentrators are developed.
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