Ziyun Li
8 Papers
7 Citations
Ziyun Li is an academic researcher. The author has contributed to research in topics: Geology & Ultimate tensile strength. The author has an hindex of 2, co-authored 8 publications.
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Papers
Experimental Study on the Influence of Confining Pressure and Bedding Angles on Mechanical Properties in Coal
TL;DR: Li et al. as mentioned in this paper studied the mechanism of the effects of bedding angles on the mechanical properties and failure characteristics of coal in the Shanxi Baode coal mine, uniaxial and triaxial compression tests and numerical simulations were conducted.
Dynamic Mechanical Properties and Failure Characteristics of Sandstone with Pre-Flaws Parallel to the Loading Direction
TL;DR: In this article , impact tests are performed to experimentally study the dynamic mechanical properties, failure characteristics, and energy evolution of pre-flawed sandstone using the split Hopkinson pressure bar (SHPB) apparatus.
Research and Practice on Cultivating Innovative and Entrepreneurial Spirit and Improving Ability of Postgraduates in the New Era
TL;DR: Wang et al. as discussed by the authors developed a graduate entrepreneurship incentive mechanism, from four aspects to build complete graduate innovative entrepreneurship training and ability promotion system, which has reference significance for the cultivation and ability improvement of innovation and entrepreneurship of postgraduates in universities.
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Mechanical Properties of Gas Storage Sandstone under Uniaxial Cyclic Loading and Unloading Condition
TL;DR: In this article , a nonlinear visco-plastic body was proposed by considering the accelerate stage of curves of the axial residual strains, and used the nonlinear VPL body to replace the traditional Nishihara model for cyclic loads.
Damage Evolution and Constitutive Model of Marble under Dynamic Loading
TL;DR: In this article , a dynamic constitutive model of marble was established with the fracture mechanical parameters (brittleness index), and the calculated curves were compared with the experimental curves, which theoretically explain the evolution law of macroscopic failure of the sample.