Failure-delay effect in destruction of steel samples under spalling conditions
- Authors: Mikhailova N.V.1, Volkov G.A.1,2, Meshcheryakov Y.I.2, Petrov Y.V.1,2, Utkin A.A.1,2
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Affiliations:
- St. Petersburg State University
- Institute of Problems of Mechanical Engineering
- Issue: Vol 62, No 4 (2017)
- Pages: 547-552
- Section: Solid State
- URL: https://journals.rcsi.science/1063-7842/article/view/199214
- DOI: https://doi.org/10.1134/S106378421704017X
- ID: 199214
Cite item
Abstract
Dynamic spalling tests have been run on two batches of 30KhN4M steel samples. Experimental data have been processed with the classical technique based on solution of the elastic wave equation. Three samples have been revealed that demonstrated the failure-delay effect under testing. The incubation-time criterion has been used to show the conditions of emergence of failure delay with the example of triangular loading pulses. A rate strength curve has been constructed for the other samples. It has been shown that the limiting strengths under dynamic loads considerably differ for samples from different batches despite the same chemical composition and static strength.
About the authors
N. V. Mikhailova
St. Petersburg State University
Email: volkovgrig@mail.ru
Russian Federation, Peterhof, St. Petersburg, 198504
G. A. Volkov
St. Petersburg State University; Institute of Problems of Mechanical Engineering
Author for correspondence.
Email: volkovgrig@mail.ru
Russian Federation, Peterhof, St. Petersburg, 198504; St. Petersburg, 199178
Yu. I. Meshcheryakov
Institute of Problems of Mechanical Engineering
Email: volkovgrig@mail.ru
Russian Federation, St. Petersburg, 199178
Yu. V. Petrov
St. Petersburg State University; Institute of Problems of Mechanical Engineering
Email: volkovgrig@mail.ru
Russian Federation, Peterhof, St. Petersburg, 198504; St. Petersburg, 199178
A. A. Utkin
St. Petersburg State University; Institute of Problems of Mechanical Engineering
Email: volkovgrig@mail.ru
Russian Federation, Peterhof, St. Petersburg, 198504; St. Petersburg, 199178