Strength of Materials

, Volume 25, Issue 3, pp 163–168 | Cite as

Analysis of energy criteria for failure with low-cycle loading

  • S. V. Dobrovol'skii
Scientific and Technical Section
  • 23 Downloads

Abstract

A study is made by experiment of the low-cycle fatigue of high- strength steel at 20, 450, and 600° C for steels of low (22K) and moderate (16GNM) strength when the amplitudes of specific energy per cycle of elastic, plastic, and elastoplastic deformation, and also values for similar energies accumulated for the whole specimen life are taken as physical criteria of failure. Analytical description of experimental low- cycle fatigue curves in an energy interpretation is carried out. It is shown that as physical criteria with low-cycle fatigue it is more desirable to take the amplitude of energy per elastoplastic deformation cycle accumulated for the whole specimen life.

Keywords

Fatigue Specific Energy Analytical Description Cycle Fatigue Energy Criterion 

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Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • S. V. Dobrovol'skii
    • 1
  1. 1.Mechanical InstituteIzhevsk

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