Bakhracheva Yu.S. The Method for Lifetime Estimation Through the Mechanical Properties in Tension

http://dx.doi.org/10.15688/jvolsu10.2014.2.4 

Bakhracheva Yuliya Sagidullovna

Candidate of Technical Sciences, Associate Professor, Department of Physics and Chemistry,

Moscow State University of Communication Means (MIIT), Volgograd Branch

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Bukhantseva St., 48, 400120 Volgograd, Russian Federation

Abstract. The method for prediction of Paris' curve shape through the results of tensile test is suggested. For this purpose the author developed non-direct method for determination of K_th and K_fc and corresponding to them da/dN values. The relationship between K_th and _b/_y ratio was found. The correlation K_fc(K_Ic) was also shown. It makes possible to estimate lifetime of different structures with cracks under cyclic loading.

Key words: Paris' curve, cyclic loading, lifetime, non-direct method, tensile test.

The Method for Lifetime Estimation Through the Mechanical Properties in Tension by Bakhracheva Yu.S. is licensed under a Creative Commons Attribution 4.0 International License.

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