岩石准静态条件下加载过程中的非平衡效应

doi:10.13722/j.cnki.jrme.2015.0652

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Abstract Rocks possess viscosity property，which cannot be ignored. Deformation behaviors of rock-like materials display the characteristics of the rate-dependence，which manifest macroscopically non-equilibrium nonlinear effect of elastic aftereffect，creep，and relaxation. Based on the classic Preisach-Mayergoyz space theoretical model，anelastic mesoscopic unit(AMU) possessing time-dependent peculiarity is introduced to obtain the modified PM theoretical model. By adopting the modified PM space model，characteristic of stress-strain curves with different loading rates and the non-equilibrium effect are studied in detail. Finally，experimental approach to obtain the deformation-time curve of the AMU and reconfiguration of the modified PM space is proposed. Results obtained in this paper indicate that，the area of stress-strain hysteresis loop increases with increment of loading rate. The larger the loading rate，the longer the time is taken for the sample to reach equilibrium state.

Key words： rock mechanics anelastic mesoscopic unit modified PM space non-equilibrium effect

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	Articles by authors
	WANG Xinyu1
	SHAO Zhushan1
	SONG Lin1
	2

Cite this article:

WANG Xinyu1,SHAO Zhushan1,SONG Lin1, et al. Non-equilibrium effect of rock under quasi-static loading condition[J]. , 2016, 35(S1): 2749-2757.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0652 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS1/2749

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