Methods for breaking strength determination of highductile pipeline steels

Authors

  • V. S. Vahrusheva department of Materials Science and Treatment of Materials, State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine, Ukraine
  • E. A. Grimalovskaya department of Materials Science and Treatment of Materials, State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine, Ukraine

Keywords:

methods for breaking strength determination, high-ductile steels, destruction energy.

Abstract

Purpose. New  methods  of  high-strength  construction  materials  receiving  lead  to  formation  of  new  types of  the  metal structure and change the fracture mode at the test. In connection with it, problems of ductile fracture propagation control are arisen. The aim of the paper is to analyze basic approaches of the ductile properties’ level determination and breaking strength determination of high-strength  pipeline steels. Methodology.  In this paper, existing methods for breaking strength determination of high-ductile pipeline steels are analyzed. Results. It is shown that methods for breaking strength determination of high-strength and high-ductile pipeline steels are often insufficiently exact, and they are in need of correction and further investigations.  Originality. The analysis discovers disadvantages and imperfections of existing methods of ductile fracture propagation evaluation. Practical value. In this paper  necessity  to  create  the  universal  methodology that  allows fairly  and  exactly determinate  breaking  strength of  high-ductile pipeline steels is proved.

Author Biographies

V. S. Vahrusheva, department of Materials Science and Treatment of Materials, State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine

Dr. Sc. (Tech.), Prof.

E. A. Grimalovskaya, department of Materials Science and Treatment of Materials, State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine

postgraduate st.

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Published

2016-03-22

Issue

Section

Proceedings in memory of Starodubov