Results 1 to 10 of about 53,996 (266)
Investigation of the influence mechanism of rock damage on rock fragmentation and cutting performance by the discrete element method [PDF]
Royal Society Open Science, 2019 Rock damage is one of the key factors in the design and model choice of mining machinery. In this paper, the influence of rock damage on rock fragmentation and cutting performance was studied using PFC2D.
Si-fei Liu +3 more
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Blasting Damage Model of Rock with Initial Damages and Its Application
Chemical Engineering Transactions, 2018 Rock is a material subject to initial damage. Rock blasting-induced damage model is the most commonly used constitutive model for numerical simulation of rock blasting.
Pingyuan Yang, Xiaoen Wu, Junhua Chen
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A Macro–Micro Damage Model for Rock under Compression Loading
Applied Sciences, 2021 Rock damage caused by its microcrack growth has a great influence on the deformation and strength properties of rock under compressive loading. Considering the interaction of wing cracks and the additional stress caused by rock bridge damage, a new ...
Zhixiong Peng +3 more
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Research on Coal Acoustic Emission Characteristics and Damage Evolution During Cyclic Loading
Frontiers in Earth Science, 2022 The acoustic emission, energy, and damage evolution of coal samples for three kinds of uniaxial cyclic loading and unloading are deeply analyzed in this study. The evolution of total absorption energy, elastic strain energy, and dissipated energy of coal
Su Zhili +4 more
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Numerical Simulation and Evaluation on Continuum Damage Models of Rocks
Energies, 2022 Damage mechanics play an important role in the analysis of rock deformation and failure. Numerous damage variables have been proposed and the corresponding continuum damage models were suggested.
Leilei Zhao +3 more
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Damage Characterization of Rock Slopes [PDF]
Journal of Marine Science and Engineering, 2019 In order to design reliable coastal structures, for present and future scenarios, universal and precise damage assessment methods are required. This study addresses this need, and presents improved damage characterization methods for coastal structures with rock armored slopes.
Ermano de Almeida +2 more
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Damage evaluation and damage localization of rock [PDF]
Theoretical and Applied Fracture Mechanics, 2004 Abstract Knowledge of damage accumulation and corresponding failure evolution are prerequisite for effective maintenance of civil engineering so as to avoid disaster. Based on statistical mesoscopic damage mechanics, it was revealed that there are three stages in the process of deformation, damage and failure of multiscale heterogeneous elastic ...
X.H. Xu +4 more
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A statistical damage constitutive rock model based on elastic energy release rate
Shuiwen dizhi gongcheng dizhi, 2021 In order to truly reveal the mechanism of rock deformation and failure and the nature of rock material damage, based on the analysis of rock material deformation law and mechanical characteristics, a rock damage constitutive model based on elastic energy
Wenbo LIU +3 more
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Meikuang Anquan, 2023 In order to explore the damage evolution law of soft and hard interbedded rock after failure, three groups of rock-like test blocks (soft rock, interbedded rock and hard rock) were made by using the similar model theory.
Xianyin QI, Ting KE, Diandong GENG
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Stress wave attenuation in shock‐damaged rock [PDF]
Journal of Geophysical Research: Solid Earth, 1996 The velocity and attenuation of ultrasonic stress waves in gabbroic rock samples (San Marcos, California) subjected to shock loading in the 2 GPa range were studied. Prom P wave velocity measurements we determined the damage parameter Dp and crack density ε of the samples and related these to the attenuation coefficient (quality factor) under dynamic ...
Luo, Cangli, Ahrens, Thomas J.
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