Strength of the Threaded Details Working in Oilfield Equipment

  • Djahid A. KerimovEmail author
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 1095)


In practice of designing of machine details and the equipment for assessment the hazard of a tense situation usually use not criteria of strength, only the safety margin coefficient or equivalent stress. Methods of calculation of equivalent stress are considered on the basis of a method of calculation of criterion of strength depending on synchronous change of all three principal stresses. Obtained theoretical results are confirmed experimentally and the method of calculation of equivalent stress is developed that is necessary for practice.


Safety margin coefficient Equivalent stress Main stress Flat tense situation Limiting stress 


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Azerbaijan State Oil and Industry UniversityNasimi, BakuAzerbaijan

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