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Acta Mechanica Solida Sinica

, Volume 31, Issue 3, pp 322–331 | Cite as

Plastic Strain Energy Model for Rock Salt Under Fatigue Loading

  • M. M. HeEmail author
  • N. Li
  • B. Q. Huang
  • C. H. Zhu
  • Y. S. Chen
Original Paper
  • 113 Downloads

Abstract

The fatigue test for rock salt is conducted to investigate the effects of stress amplitude, loading frequency and loading rate on the plastic strain energy, from which the evaluation rule of the plastic strain energy is analyzed, which is divided into three stages: cyclic hardening, saturation and cyclic softening. The total accumulated plastic strain energy only depends on the mechanical behavior of rock salt, but is immune to the loading conditions. A novel model for fatigue life prediction is proposed based on the invariance of the total plastic dissipation energy and the stability of the plastic energy per cycle.

Keywords

Rock salt Fatigue life Plastic energy 

Notes

Acknowledgements

This study is sponsored by the National Natural Science Foundation of China (Nos. 51179153 and 11572246). The financial support provided by these sponsors is greatly appreciated.

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2018

Authors and Affiliations

  • M. M. He
    • 1
    Email author
  • N. Li
    • 1
    • 2
  • B. Q. Huang
    • 3
  • C. H. Zhu
    • 1
  • Y. S. Chen
    • 1
    • 4
  1. 1.Institute of Geotechnical EngineeringXi’an University of TechnologyXi’anChina
  2. 2.State Key Laboratory of Eco-hydraulics in Northwest Arid RegionXi’an University of TechnologyXi’anChina
  3. 3.College of Information Engineering and AutomationKunming University of Science and TechnologyKunmingChina
  4. 4.Shaanxi Key Laboratory of Loess Mechanics and EngineeringXi’an University of TechnologyXi’anChina

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