Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Cerfontaine, Benjamin; Collin, Frèdèric

doi:10.1007/s00603-017-1337-5

Cited by 293 publications

(109 citation statements)

References 140 publications

(284 reference statements)

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“…However, the micro-cracks do not recover to their initial positions [48]. The plastic deformation of the structural surfaces of the micro-cracks consumes a certain amount of energy [48]. Figure 11 shows that the hysteresis energy decreases generally with the increasing number of cycles.…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, it promotes the closure of micro-cracks caused by temperature. However, the micro-cracks do not recover to their initial positions [48]. The plastic deformation of the structural surfaces of the micro-cracks consumes a certain amount of energy [48].…”

Section: Discussionmentioning

confidence: 99%

“…Due to the combined action of cyclic temperature and stress, the internal micro-structure of the granite is adjusted. The external forces such as cyclic temperature or cyclic stress cause deformation of mineral particles inside the rock, changes in the arrangement of mineral particles (extrusion deformation dislocations) [29], and repeated opening and closing of the internal micro-cracks [48], resulting in the initiation and propagation of micro-cracks inside the rock. Irreversible plastic deformation occurs in the sample when it is subjected to temperature and stress cycling, and the strength of the deformed structure increases continuously, resulting in hardening of the sample.…”

Section: Discussionmentioning

confidence: 99%

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Exploratory Experimental Study on the Mechanical Properties of Granite Subjected to Cyclic Temperature and Uniaxial Stress

Zhao

Jin

2020

Energies

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This paper investigates the variation of mechanical properties of granite during temperature and stress cycling, which is an important part of evaluating the long-term thermal and mechanical stability of thermal energy storage. Cyclic temperature and loading tests were conducted where the upper limit of cyclic temperature was 100-600 • C, and the upper stress limits were 70% and 85% of the average uniaxial compressive strength (UCS) at the corresponding temperature. The response of stress-strain characteristics of the granite samples to changes in temperature, and cyclic load upper limit, while the number of temperature and loading cycles was comprehensively analyzed. The results show that the temperature and stress cycles have significant effects on the mechanical properties of granite (i.e., stress-strain curve, strength, elastic modulus, and deformation). The elastic modulus of the sample during loading increases gradually. The strain corresponding to the upper loads of the granite samples decreases with an increasing number of cycles. Additionally, the UCS of samples after 10 cycles at 70% loading stress is greater than that at 85% loading stress. The mechanical properties of samples change dramatically during the first and second cycles at 85% loading stress, whereas at 70% loading stress, the mechanical properties change gradually in the first few cycles, and then tend to stabilize. Cyclic hardening is observed at temperatures below 500 • C, where post cyclic UCS is greater than the uncycled average UCS. This phenomenon requires further research.Energies 2020, 13, 2061 2 of 17 reported the effect of cyclic temperature on the physical and mechanical properties of rocks. Rong et al. [11,12] investigated the influence of thermal cycling on the physical and mechanical properties of rock (i.e., marble and granite) through a uniaxial compression test and conducted microscopic observations to investigate the thermal damage of rock sample induced by the treatment of different thermal cycles. Battaglia et al. [15] measured the linear thermal expansion of marbles subjected to thermal cycles utilizing a high-sensitivity apparatus. Lin et al. [16] investigated the variation of residual strain and micro-crack density of granite with cyclic temperature in the range of 600 • C, and explained the mechanism of permanent deformation caused by micro-cracks from the microscopic perspective. Fang [18] analyzed and compared the effects of mechanical properties of marble subjected to thermal treatment and thermal cycling. They showed that the physical and mechanical properties of rock samples deteriorate gradually with an increasing number of temperature cycles. Further, other researchers considered that the deterioration of the mechanical properties of building materials and engineering structures in cold regions with harsh climatic conditions was due to freeze-thaw cycles [19][20][21].Most of the earlier studies on the effect of cyclic loading on the mechanical properties of rocks did not consider the effect of temperature, i....

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Exploratory Experimental Study on the Mechanical Properties of Granite Subjected to Cyclic Temperature and Uniaxial Stress

Zhao

Jin

2020

Energies

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“…Weakening of the rock sample by weathering may lead to more diffuse micro-cracking that eventually results in an increased number of macro-cracks, as seen in cyclic loading tests, which can be used as a proxy for environmental fluctuations and associated weathering processes (Cerfontaine and Collin, 2017). These distributed micro-cracks do not result in the same pattern of coalescence required for unstable 'run-away' macroscale fracture, as normally predicted for a similar point on stress-strain curves (Eberhardt et al, 1998;Martin and Chandler, 1994).…”

Section: Effects Of Weathering On Failure Stylementioning

confidence: 93%

Controls on the geotechnical response of sedimentary rocks to weathering

Vilder

Brain

Rosser

2019

Earth Surf Processes Landf

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Weathering reduces the strength of rocks and so is a key control on the stability of rock slopes. Recent research suggests that the geotechnical response of rocks to weathering varies with ambient stress conditions resulting from overburden loading and/or stress concentrations driven by near‐surface topography. In addition, the stress history experienced by the rock can influence the degree to which current weathering processes cause rock breakdown. To address the combined effect of these potential controls, we conducted a set of weathering experiments on two sedimentary lithologies in laboratory and field conditions. We firstly defined the baseline geotechnical behaviour of each lithology, characterising surface hardness and stress–strain behaviour in unconfined compression. Weathering significantly reduced intact rock strength, but this was not evident in measurements of surface hardness. The ambient compressive stress applied to samples throughout the experiments did not cause any observable differences in the geotechnical behaviour of the samples. We created a stress history effect in sub‐sets of samples by generating a population of microcracks that could be exploited by weathering processes. We also geometrically modified groups of samples to cause near‐surface stress concentrations that may allow greater weathering efficacy. However, even these pronounced sample modifications resulted in insignificant changes in geotechnical behaviour when compared to unmodified samples. The observed reduction in rock strength changed the nature of failure of the samples, which developed post‐peak strength and underwent multiple stages of brittle failure. Although weakened, these samples could sustain greater stress and strain following exceedance of peak strength. On this basis, the multi‐stage failure style exhibited by weaker weathered rock may permit smaller‐magnitude, higher‐frequency events to trigger fracture through intact rock bridges as well as influencing the characteristics of pre‐failure deformation. These findings are consistent with patterns of behaviour observed in field monitoring results. © 2019 John Wiley & Sons, Ltd.

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“…The fatigue failure of rocks is a process of accumulative damage, ie, fatigue loading on rocks mainly leads to the accumulation of plastic deformation or damage cycle by cycle . The patterns of cyclic loading in previous studies were mainly dominated by time‐dependent loads or displacement signal repeated patterns, which is opposed to continually monotonic increasing loading by force or displacement.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on effects of freeze‐thaw fatigue damage on the cracking behaviors of sandstone containing two unparallel fissures

Zhou

Niu

Zhang

et al. 2019

Fatigue Fract Eng Mat Struct

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This paper investigates the effects of freeze‐thaw (FT) fatigue damage on the cracking behaviors of sandstone specimens containing two unparallel fissures under uniaxial compression. First, the effects of FT fatigue damage and fissure angle on the mechanical properties of sandstone specimens are analyzed. Second, the real‐time cracking process of sandstone specimens is captured by a high‐speed digital video camera system. Seven crack coalescence patterns are observed in this experiment. Local strong fatigue‐damaged zones, which are visualized as white zones, are observed in the specimens subjected to FT cycles during loading. Finally, scanning electron microscopy (SEM) observations show that the local strong fatigue‐damaged zones mainly consisted of microcracks and micropores induced by the FT fatigue damage. These experimental results are helpful for improving the understanding of the cracking process in cold‐region engineering.

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Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Cited by 293 publications

References 140 publications

Exploratory Experimental Study on the Mechanical Properties of Granite Subjected to Cyclic Temperature and Uniaxial Stress

Exploratory Experimental Study on the Mechanical Properties of Granite Subjected to Cyclic Temperature and Uniaxial Stress

Controls on the geotechnical response of sedimentary rocks to weathering

Experimental study on effects of freeze‐thaw fatigue damage on the cracking behaviors of sandstone containing two unparallel fissures

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