The Statistical Distribution of Fatigue Life and the S-N Curve of Rocks

Suzuki, Kô; Nishimatsu, Yûichi; Heroesewojo, R.

doi:10.2473/shigentosozai1953.86.986_353

Cited by 3 publications

(1 citation statement)

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“…e mechanical properties of rocks under cyclic loading are affected by many factors. e fatigue life of rocks is related to the stress amplitude of cyclic loading [18][19][20][21], and the dynamic strength of rocks is related to the stress amplitude of cyclic loading and the stress upper limit of cyclic loading. Similarly, the dynamic strength of rocks is also affected by loading rate and the frequency of cyclic loading [22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Visco‐Elastoplastic Constitutive Fatigue Model for Rocks

Liu

Rao

2020

Advances in Civil Engineering

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The study on the constitutive fatigue model for rocks under cyclic loading has an important significance in rock engineering. In order to study the fatigue properties of rocks under cyclic loading, according to the theory of rheological mechanics and the existing three basic one-dimensional fatigue elements, i.e., elastic, viscous, and plastic fatigue elements, the three-dimensional elastic, viscous, and plastic fatigue elements were constructed. Meanwhile, a fatigue yield criterion for rocks under cyclic loading was proposed, and a three-dimensional nonlinear visco-elastoplastic fatigue constitutive model (NVPFM) for rocks was established by using the flow criterion related to the proposed fatigue yield criterion. Compared with the test results of rocks under cyclic loading, the three-dimensional NVPFM could be used to describe the transient, steady-state, and tertiary creep phases of rocks under cyclic loading.

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Section: Introductionmentioning

confidence: 99%

Visco‐Elastoplastic Constitutive Fatigue Model for Rocks

Liu

Rao

2020

Advances in Civil Engineering

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Methods for fatigue-life estimation: A review of the current status and future trends

Zhang

Jiang

Zhang

et al. 2023

Nanotechnology and Precision Engineering

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With the development of modern industry and ever more complex structural loads, the possibility of fatigue failure is increasing. Fatigue analysis can be used to evaluate the service life of components and reduce the probability of accidents. Therefore, the development and application of fatigue-analysis technology have important research significance. This paper collects information from a wide field of literature and summarizes the current status of fatigue-analysis research. It covers related theoretical knowledge, fatigue-life prediction methods, and fatigue design methods and their application scenarios, and it summarizes the challenges and research hotspots in the field. On the basis of this examination, future development directions of fatigue-life prediction methods are proposed. The conclusions will have a certain guiding role in the development of fatigue-analysis methods.

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Change in Elastic Property of Granite by Repeated Stress Change

Chen¹,

Yamazaki²

2014

J. Soc. Mat. Sci., Japan

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The demand for the long-term safety utilization of rock structures has increased further in recent years. It has been reported that the repeated stress change induced the deterioration of rocks. However, there still remain many unknowns about the deterioration of rocks by repeated stress change. To obtain further insights into the deterioration of granite by repeated stress change, change in elastic property of specimen during the test was analyzed in detail.Cylindrical Westerly granite specimen with 20mm in height and 10mm in diameter was subjected to the cyclic loading with maximum 160 MPa (approximately 80% of the estimated uniaxial compressive strength) and minimum 0.5 MPa at room temperature. Axial and lateral strains, and the applied load were simultaneously measured at 100 points for one cycle, and Young's modulus and Poisson's ratio until failure were estimated applying these measured data. As a result, the characteristic changes in two elastic properties following the progress of the deterioration stage were revealed. At the initial degradation stage, the changes were very small. During the second steady stage, two properties were changed gradually and linearly. At the final accelerated stage, the changes were drastically. It was also found that these characteristic alterations were well accorded with the reported microcrack growth patterns.

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The Statistical Distribution of Fatigue Life and the S-N Curve of Rocks

Cited by 3 publications

References 0 publications

Visco‐Elastoplastic Constitutive Fatigue Model for Rocks

Visco‐Elastoplastic Constitutive Fatigue Model for Rocks

Methods for fatigue-life estimation: A review of the current status and future trends

Change in Elastic Property of Granite by Repeated Stress Change

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