Strength of Materials

, Volume 29, Issue 1, pp 66–70 | Cite as

Determining permissible stresses in simple cyclic loading

  • B. S. Shul’ginov
Scientific and Technical Section


Cyclic loading stress is examined for a limiting-state diagram which characterizes the fatigue resistance, the permissible stresses, the cyclic cracking resistance, and the limiting fatigue crack size. It has been found for 09G2 steel that the limiting crack size is dependent on the stress cycle asymmetry if the permissible stresses are determined for a given strength margin coefficient. One can construct a permissible-stress diagram for a given crack size. In that case, the strength margin coefficient is dependent on the stress cycle asymmetry, which enables one to make better use of the material.


Stress Intensity Factor Stress Intensity Factor Fatigue Limit Crack Size Cycle Stress 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    S. V. Serensen, V. P. Kogaev, and R. M. Shneiderovich, Handbook on Machine-Component Carrying Capacity and Strength Calculations [in Russian], Mashinostroenie, Moscow (1975), 488 pp.Google Scholar
  2. 2.
    Methodological Instructions: Strength Calculations and Tests. Methods for Mechanical Tests on Metals. Definition of Cracking Resistance Characteristics (Fracture Toughness) in Cyclic Loading [in Russian], RD 50-345-82 Izd. Standartov, Moscow (1983).Google Scholar
  3. 3.
    V. I. Letunov, V. A. Vainshtok, and B. S. Shul'ginov, “Comparative analysis of stress intensity factor determination for semielliptical surface cracks under bending conditions, Probl. Prochn., No. 4, 17–21 (1984).Google Scholar
  4. 4.
    V. I. Trufyakov, Fatigue in Welded Joints [in Russian], Naukova Dumka, Kiev (1973).Google Scholar

Copyright information

© Plenum Publishing Corporation 1997

Authors and Affiliations

  • B. S. Shul’ginov
    • 1
  1. 1.Strength Problems InstituteUkrainian National Academy of SciencesKievUkraine

Personalised recommendations