Experimental investigation and damage modeling of salt rock subjected to fatigue loading

He, Mingming; Li, Ning; Zhu, Caihui; Chen, Yunsheng; Wu, Huiqin

doi:10.1016/j.ijrmms.2018.12.015

Cited by 93 publications

(21 citation statements)

References 40 publications

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“…The same trends were observed for all the performed fatigue experiments. This kind of evolution has already been reported in the literature [69,70] and can be fitted as follows:…”

Section: Damage Quantificationmentioning

confidence: 87%

Experimental investigation and modeling attempt on the effects of ultraviolet aging on the fatigue behavior of an LDPE semi-crystalline polymer

Lamnii

Nait-Abelaziz

Ayoub

et al. 2021

International Journal of Fatigue

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The objective of this study was to investigate the effect of UV irradiation on the fatigue life of a bulk semicrystalline polymer. Low-density polyethylene samples exposed to different UV irradiation doses were fatigue tested. Fatigue indicator based on dissipated energy per cycle was found to present the best correlation with the experimental fatigue results. A master curve unifying the experimental fatigue results for as-received and UVaged materials was obtained when subtracting the dissipated energy threshold from the total dissipated energy. Finally, the evolution of the damage with cyclic loading was analyzed and preliminary modeling was attempted.

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“…The same trends were observed for all the performed fatigue experiments. This kind of evolution has already been reported in the literature [69,70] and can be fitted as follows:…”

Section: Damage Quantificationmentioning

confidence: 87%

Experimental investigation and modeling attempt on the effects of ultraviolet aging on the fatigue behavior of an LDPE semi-crystalline polymer

Lamnii

Nait-Abelaziz

Ayoub

et al. 2021

International Journal of Fatigue

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“…Yang et al conducted triaxial cyclic testing for crystalline marble with different confining pressures, and a damage variable is defined according to the irreversible deformation for each cycle. He et al conducted a laboratory investigation on salt with different stress amplitudes and loading frequencies, and the relationship between the fatigue life and loading conditions was studied.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic fatigue behaviour of interbeded marble subjected to uniaxial cyclic compressive loads

Wang

Gao

Liu

et al. 2020

Fatigue Fract Eng Mat Struct

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The work aims to experimentally investigate the anisotropic fatigue characteristics of marble with different bedding orientations using uniaxial fatigue experiments and posttest computed tomography (CT) scanning. The impacts of interbed orientation on the strength, deformation, fatigue life, and stimulated fracture pattern were systematically analysed. Results show that the axial, lateral, and volumetric strain curves present a three-stage deformation and are influenced by the interbed orientation. The volumetric strain is maximum and minimum for a marble sample with 30 and 90 orientation, respectively, which is closely related to the failure mode. The crack pattern in the CT images is related to the interbed orientation; the crack density and scale are the largest for a 90 orientation sample and are the smallest for a 30 orientation sample. Good correlation has been established between the fatigue lifetime and the interbed orientation. It is suggested that anisotropic cyclic behaviours of marble is structurally dependent. K E Y W O R D Sanisotropy, ct scanning, cyclic load, failure mode, marble

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“…Fan et al [19] have shown that the cyclic life of rock salt in the cyclic creep test is significantly reduced within a certain range, and an empirical model of cycle life and interval time is established. In addition, many scholars [20][21][22][23][24] have studied the damage model of rocks under cyclic loading. However, the damage model for rock salt under cyclic creep loads is rarely studied.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Damage Model Study of Rock Salt Subjected to Cyclic Loading and Cyclic Creep

Zhao

Huang

Liu

et al. 2020

Advances in Civil Engineering

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Due to the gas injection and production of underground salt caves during the operational phase, rock salt is often subjected to a combined stress of cyclic pressure and constant pressure. In order to investigate the damage evolution of rock salt under different combined stresses, the uniaxial cyclic loading test and cyclic creep test were carried out. The stress-strain curves, energy characteristics, energy dissipation, and damage of rock salt in the two experiments were analyzed and compared. The test results show that the stress-strain curves of the two tests presented three stages of “sparse”-“dense”-“sparse.” As the maximum stress increases, the stage of “dense” will decrease and the rock salt cycle life will decrease. The relationship between cycle life and Δσ (difference between maximum and minimum stress in the tests) is an exponential function under cyclic loading and a linear relationship under cyclic creep. Based on the experimental data, the energy dissipation of rock salt is analyzed. The damage variables were defined from the perspective of energy dissipation, and the damage evolution of rock salt under two tests was obtained. There are three corresponding stages of energy dissipation and damage: initial, constant speed, and acceleration. The damage model is obtained by inverse functioning the s function, and then the correction coefficient is added to the model to obtain the modified damage model. The modified damage model is compared with the experimental data. The results show that the model can accurately describe the three stages of rock salt damage. The significance of parameters in the modifying damage model is also discussed.

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Experimental investigation and damage modeling of salt rock subjected to fatigue loading

Cited by 93 publications

References 40 publications

Experimental investigation and modeling attempt on the effects of ultraviolet aging on the fatigue behavior of an LDPE semi-crystalline polymer

Experimental investigation and modeling attempt on the effects of ultraviolet aging on the fatigue behavior of an LDPE semi-crystalline polymer

Anisotropic fatigue behaviour of interbeded marble subjected to uniaxial cyclic compressive loads

Experimental Study and Damage Model Study of Rock Salt Subjected to Cyclic Loading and Cyclic Creep

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