Strength of Materials

, Volume 7, Issue 3, pp 292–295 | Cite as

Creep and relaxation resistance of electrical composition board in oil at 80°C

  • A. Yakovlyuk
  • M. Chekh
Scientific and Technical Section
Received:
  • 13 Downloads

Conclusions

  1. 1.

    Full information regarding the creep of electrical composition board may be derived from experiments carried out at only two stress levels, using an empirical equation.

     
  2. 2.

    For certain values of time and stress σ depends linearly on σ0. Hence in order to describe stress relaxation in electrical composition board it is sufficient to carry out experiments at only one initial stress σ0.

     
  3. 3.

    The use of yield theory enables us to obtain reasonably accurate stress-relaxation curves on the basis of simple creep tests.

     

Keywords

Stress Level Stress Relaxation Empirical Equation Creep Test Initial 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.
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Literature Cited

  1. 1.
    C. R. Soderberg, “The interpretation of creep tests for machine design,” Trans. ASME, 58733 (1936).Google Scholar
  2. 2.
    L. M. Kachanov, Some Problems in Creep Theory [in Russian], GITTL, Moscow (1945).Google Scholar
  3. 3.
    F. S. Churikov, “Stresses and strains at high temperatures,” Vestnik Mosk. Univ., Ser. Fiz.-Mat. Est. Nauk, No. 2 (1949).Google Scholar
  4. 4.
    C. C. Davenport, “Correlation of creep and relaxation properties of copper,” J. Appl. Mechanics,60, A55 (1953).Google Scholar

Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • A. Yakovlyuk
  • M. Chekh

There are no affiliations available

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