2020
DOI: 10.1002/nag.3133
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Micromechanical modeling for rate‐dependent behavior of salt rock under cyclic loading

Abstract: The dependence of rock behavior on the deformation rate is still not well understood. In salt rock, the fundamental mechanisms that drive the accumulation of irreversible deformation, the reduction of stiffness, and the development of hysteresis during cyclic loading are usually attributed to

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Cited by 7 publications
(5 citation statements)
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References 51 publications
(93 reference statements)
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“…Our experiments document significant transient behaviors associated with stress cycling, which can be explained by path‐dependent activation of water‐assisted diffusion processes and termination by static healing. Numerical modeling of our experimental data also demonstrates the association of transient semibrittle behavior with stress cycling (Shen, Ding, Arson, et al., 2021). In the lithosphere, the brittle‐plastic transition is characterized by semibrittle deformation involving brittle frictional, crystal‐plastic, and diffusional processes (Brace & Kohlstedt, 1980; Kirby, 1980; Kohlstedt et al., 1995).…”
Section: Discussionsupporting
confidence: 61%
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“…Our experiments document significant transient behaviors associated with stress cycling, which can be explained by path‐dependent activation of water‐assisted diffusion processes and termination by static healing. Numerical modeling of our experimental data also demonstrates the association of transient semibrittle behavior with stress cycling (Shen, Ding, Arson, et al., 2021). In the lithosphere, the brittle‐plastic transition is characterized by semibrittle deformation involving brittle frictional, crystal‐plastic, and diffusional processes (Brace & Kohlstedt, 1980; Kirby, 1980; Kohlstedt et al., 1995).…”
Section: Discussionsupporting
confidence: 61%
“…During small stress cycles, the gbo cracks can increase or decrease in aperture with associated gbs in a recoverable fashion. The increase in the density of gbo and gbs arrays with increasing strain, as evinced by the progressive increase in volume (Figure 3), leads to the observed continuous reduction in modulus and increase in Poisson's ratio with axial strain (Shen, Ding, Arson, et al., 2021).…”
Section: Discussionmentioning
confidence: 99%
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“…Rock damage is defined as the degradation of the macroscopic properties, such as strength, stiffness, etc [22][23][24]. The damage is the consequence of microcracks propagation, coalescence [25][26][27][28][29], and stiffness degradation [30]. The damage mechanics in rock engineering studies the evolution of damage that starts from microcracks and results in rupture failure in the macroscale of the structure [31].…”
Section: Micromechanism Of Thermal Damagementioning
confidence: 99%