Article
Engineering, Mechanical
Xibing Li, Helong Gu, Ming Tao, Kang Peng, Wenzhuo Cao, Qiyue Li
Summary: This study investigated the influence of pre-static load and dynamic load on the fracture evolution and destruction states of coal using experimental and theoretical approaches. The results showed that pre-static load can affect the post-peak dynamic stress-strain curve of the specimen, while dynamic load plays a role in the dynamic failure state of coal.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2021)
Article
Thermodynamics
Xiangguo Kong, Di He, Xianfeng Liu, Enyuan Wang, Shugang Li, Ting Liu, Pengfei Ji, Daiyu Deng, Songrui Yang
Summary: The impact dynamics experiments on gas-bearing coal revealed that reflected energy was generally higher than transmission energy but smaller than incident energy under different loading conditions. Elastic deformation and dissipative energy experienced specific evolutionary trends with time regardless of loading conditions, and the impact of static load and gas pressure on dissipative energy was significant.
Article
Geosciences, Multidisciplinary
Rongxi Shen, Zhoujie Gu, Zhentang Liu, Enlai Zhao, Zesheng Zang, Xin Zhou, Xiaoliang Li, Wei Liu, Xi Wang
Summary: A full understanding of the dynamic mechanical characteristics of coal samples under true triaxial conditions is crucial for preventing and controlling dynamic disasters in deep coal and rock. The study found that the transmission amplitude decreases as sigma 1 increases and increases with the impact velocity. The peak stress and absorbed energy of coal decrease with the increase in sigma 1 under true triaxial conditions. Under uniaxial and true triaxial conditions, the peak stress and absorbed energy of coal increase with the increase in impact velocity, and the stress change under true triaxial conditions is more sensitive to the dynamic load. Compared to uniaxial impact, the damage degree of coal samples under true triaxial conditions is lower. The fractal dimension of broken blocks increases linearly with the increase in sigma 1 and dynamic load, indicating an intensified degree of broken coal. This study effectively reveals the failure mechanism of coal under unequal static load and dynamic load.
NATURAL RESOURCES RESEARCH
(2023)
Article
Engineering, Geological
Xiangguo Kong, Shugang Li, Enyuan Wang, Xu Wang, Yuxuan Zhou, Pengfei Ji, Haiqing Shuang, Shaorong Li, Zongyong Wei
Summary: The study investigated the failure process of gas-bearing coal in a complex mining environment, revealing the stress wave variations, stress-strain curves, and fracture evolution through experiments and numerical simulations. The experimental results validated the numerical simulation results, elucidating the formation of high stress areas and their impact on coal specimens.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2021)
Article
Acoustics
Guang-Jian Liu, Heng Zhang, Ya-Wei Zhu, Wen-Hao Cao, Xian-Jun Ji, Cai-Ping Lu, Yang Liu
Summary: The slip and instability of coal-rock parting-coal structure induced by excavation disturbance is due to stress release and partitioned into three parts: shear failure zone, slipping zone, and splitting failure zone. The process is accompanied by initiation, expansion, and intersection of shear and tensile cracks, with shear behavior dominating crack development and tensile cracks affecting fracture and instability. The slip and instability are characterized by stick-slip followed by stable slip, with high P-wave velocity and rockburst danger coefficient observed based on microseismic tomography.
SHOCK AND VIBRATION
(2021)
Article
Energy & Fuels
Chen Wang, Xiaomeng Xu, Yihuai Zhang, Muhammad Arif, Qiang Wang, Stefan Iglauer
Summary: This study investigates the influence of methane pressure on the mechanical properties and damage characteristics of gas-bearing coal. The research findings reveal that higher methane pressure leads to more severe damage and affects the elastic modulus, mechanical strength, and strain rate of coal. Furthermore, higher impact velocities result in more severe damage, and a transition in the damage mechanism is observed. This study provides a better understanding of complex underground dynamic disasters.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Review
Engineering, Mechanical
Funing Xu, Ning Ding, Nan Li, Long Liu, Nan Hou, Na Xu, Weimin Guo, Linan Tian, Huixia Xu, Chi-Man Lawrence Wu, Xiaofeng Wu, Xiangfeng Chen
Summary: This work reviews the failure modes, mechanisms and causes of bearings in mechanical equipment. It analyzes failure modes such as fracture, corrosion, deformation and wear, and summarizes the research progress in bearing failure analysis over the past 20 years. It discusses the classification of failure modes and presents typical case studies. The study finds that wear and fatigue are the most common failure modes of bearings, and incorrect assembly, use, and maintenance are the main causes. The aim of this review is to provide systematic information for bearing failure analysis and improve the reliability of bearings.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Green & Sustainable Science & Technology
Wenbing Guo, Yuhang Hu, Dongtao Wu
Summary: The stability of composite structures formed by coal pillar and roof rock is crucial for safe production and sustainable development in coal mines. Through laboratory tests and numerical simulations, the mechanical response and failure mechanisms of coal-rock combinations (CRCs) with varying rock-to-coal height ratios were investigated. The results show that the stress thresholds for crack initiation, compressive strength, and elastic modulus increase with decreasing coal-to-rock height ratio. The instability and failure of CRCs are influenced by the interaction between the strength of sandstone and coal at the interface and the distribution of microfractures. These findings contribute to improving production safety in coal mines.
Article
Engineering, Geological
Kang Peng, Shaowei Shi, Quanle Zou, Zhijie Wen, Yunqiang Wang, Zebiao Jiang, Chunshan Zheng
Summary: Characterizing the failure mechanism of coal and rock materials from the perspective of energy is crucial. The energy evolution of gas-bearing coal has nonlinear characteristics, with total energy mainly stored as elastic energy density. The energy distribution in a stope can be divided into an energy dissipation and release zone, an increasing-energy zone, and a stable energy storage zone.
ROCK MECHANICS AND ROCK ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Hang Zhang, Tianjun Zhang, Mingkun Pang, Dengke Wang, Fanchao Zeng
Summary: This study investigated the temporal characteristics and spatial evolution patterns of fractures in gas-bearing coal under different pressure conditions. The results show that the number and similarity of fractures decrease as the pressure increases, while the fracture rate, density, and fractal dimension exhibit different stages of change. The study also found that the coal sample space has prominent zonal failure characteristics.
REVIEWS ON ADVANCED MATERIALS SCIENCE
(2023)
Article
Energy & Fuels
Zijie Hong, Zhenhua Li, Feng Du, Zhengzheng Cao, Chun Zhu
Summary: This paper aims to study the deformation and fracture evolution law of surrounding rock in deep underground engineering. The development and evolution characteristics of surrounding rock cracks are studied based on the stress rebalancing characteristics. Different seepage zones are divided according to the relationship between surrounding rock failure and its total stress-strain. The crack distribution characteristics of surrounding rock are studied, and the graded control of gradient support is proposed.
Editorial Material
Engineering, Mechanical
Aleksandar Sedmak, Valery Shlyannikov, Jose Correia, Virginia Infante
Summary: The 1st Virtual European Conference on Fracture (VECF1) brought together over 300 researchers worldwide, presenting more than 320 papers. The event, organized through multiple symposia, saw a significant increase in views and positive feedback.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Construction & Building Technology
Tong Zhao, Changyou Liu, Kaan Yetilmezsoy, Majid Bahramian, Peilin Gong
Summary: Accurate perception of key stratum instability can improve coal mining safety and provide a basis for alleviating overlying rock strata destruction. A scheme and parameters for weakening thick and hard roof were proposed through confined blasting in water-filled deep hole presplit technology, effectively reducing the risk of overlying rock strata destruction. Environmental friendly strategies, including the CBWDHPT and hydraulic support optimization, were suggested for overlying rock strata protection.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Engineering, Aerospace
Xiaodong Zhang, Yiwei Xiong, Xin Huang, Bochao Fan, Zhen Zhao, Jiahao Zhu
Summary: This paper proposes a novel dynamic computation method based on a 3D finite element model and fluid-thermal-solid coupling analysis to investigate the dynamic characteristics of the 3D blade tip clearance (3D-BTC) for turbine blades with typical cracks. The results show that abundant crack fault information can be obtained based on the 3D-BTC, which can facilitate the comprehensive diagnosis of turbine blade cracks.
INTERNATIONAL JOURNAL OF AEROSPACE ENGINEERING
(2022)
Article
Engineering, Geological
Sen Wen, Ruizhi Huang, Chunshun Zhang, Xianwei Zhao
Summary: In order to improve the safety and effectiveness of blasting and impact drilling in underground works, it is necessary to thoroughly examine the dynamic tension of composite rock strata. Cement mortars with varying mix ratios are used to create composite rock-like test blocks, which are then processed into differently sized experimental samples. Dynamic Brazilian splitting tests are conducted on these samples at varying incident angles and strain rates, and the crack propagation modes are recorded. The findings provide insights into the dynamic tensile strength and failure mechanisms of composite rock samples.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2023)
Article
Thermodynamics
Hao Wang, Enyuan Wang, Zhonghui Li
Summary: The prediction of gas emission is important for coal and gas outburst prevention. This study established a dynamic prediction model based on gas flow analysis and found that gas emission is positively correlated with gas pressure, driving speed, and permeability coefficient, while negatively correlated with coal mass compressive strength.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Xiaofei Liu, Jifa Qian, Enyuan Wang, Zhenguo Zhang
Summary: This study investigated an integrated vortex ventilation and dust removal system for addressing dust pollution in coal mining operations. Both numerical simulation and field experiments demonstrated the system's effective dust control and removal capabilities, outperforming traditional ventilation methods.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2021)
Article
Energy & Fuels
Chaolin Zhang, Enyuan Wang, Jiang Xu, Shoujian Peng
Summary: Coal and gas outbursts in coal mines are serious disasters that threaten safety, with causes that are complex and methods of prediction and prevention still immature. This study conducted experiments to explore effective prediction and prevention measures, developed a new outburst risk assessment method, analyzed different risk levels, and proposed corresponding prevention methods, providing guidance for better preventing outbursts and ensuring safe coal-mine operations.
Article
Geosciences, Multidisciplinary
Dexing Li, Enyuan Wang, Yunqiang Ju, Dongming Wang
Summary: Frequent coal bumps during mining require monitoring stress variations, where researchers investigate a new method based on pressure stimulated current (PSC). Experiments show PSC is related to stress changes, with currents repeating during loading, maintaining load, and unloading. Results indicate PSC increases exponentially with loading rate and decreases proportionally to elastic modulus, offering new insights for predicting coal bumps.
NATURAL RESOURCES RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Dong Xiao, Mohamed Keita, Hailun He, Enyuan Wang, Yidong Zhang, Huan He, Jing Ma
Summary: The study investigated the regularity of anaerobic fermentation in coal during coal crack development through tests and analyses. It was found that the level of crack development in coal is positively correlated with coal permeability and effect of air diffusion in the cracks. The research has engineering guiding significance for revealing the influence of coal fragmentation on coal biogasification in the stress concentration zone of the mining area.
NATURAL RESOURCES RESEARCH
(2021)
Article
Mechanics
Xiangguo Kong, Shugang Li, Enyuan Wang, Pengfei Ji, Xu Wang, Haiqing Shuang, Yuxuan Zhou
Summary: Dynamic characteristics of gas-bearing coal samples were studied under different loading conditions during impact dynamics experiments. The results showed that loading conditions influenced the amplitude of reflected and transmission waves.
COMPOSITE STRUCTURES
(2021)
Article
Environmental Sciences
Baolin Li, Enyuan Wang, Zhonghui Li, Yue Niu, Nan Li, Xuelong Li
Summary: By analyzing the time-frequency characteristics, dominant frequency, duration, and multifractal parameters, it is possible to distinguish different blasting and mine microseismic waveforms.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Mathematics, Interdisciplinary Applications
Junjun Feng, Enyuan Wang, Qisong Huang, Houcheng Ding, Long Dang
Summary: This study investigates the crack propagation and internal fracture process of coal under dynamic loading, revealing significant multifractal features. The multifractal feature is found to be closely related to the brittle fracture property of coal, indicating its feasibility in evaluating coal brittleness and predicting coal failure risk in underground coal mines.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2021)
Article
Environmental Sciences
Zhibo Zhang, Enyuan Wang, Xianan Liu, Majid Khan, Miao He, Yinghua Zhang
Summary: The accuracy of source location in acoustic monitoring is crucial for monitoring the stability of complex rock mass environments. Traditional methods using equivalent velocity may result in relatively large errors in complex rock mass environments. A new source location method based on Dijkstra's algorithm (SLMD) is proposed, which shows significantly higher accuracy than traditional methods, as demonstrated in laboratory experiments.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Engineering, Geological
Dexing Li, Enyuan Wang, Zhonghui Li, Yunqiang Ju, Dongming Wang, Xinyu Wang
Summary: The precursor information of rock fracture can be investigated through pressure stimulated current experiments, revealing that weak currents are generated instantaneously when loading is applied on sandstone samples and correspond well to stress variations. The response of pressure stimulated currents differs in different deformation stages, serving as precursors to rock fracture. Additionally, the variations in accumulated charge and current change rate also provide insights into predicting rock failure.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2021)
Article
Engineering, Geological
Dong Chen, En-yuan Wang, Nan Li
Summary: The study focuses on quantifying the seismic source properties and scale of micro-earthquakes and blasting events in coal mines, establishing an automatic identification model for distinguishing between micro-seismic and blast signals. The analysis includes calculating local magnitudes, analyzing the relationship between moment magnitude and local magnitude, and determining the differences between micro-earthquakes and blasting events based on various source parameters to ensure accurate source location and implementation of effective control measures.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2021)
Article
Engineering, Mechanical
Xiaoran Wang, Enyuan Wang, Xiaofei Liu, Xin Zhou
Summary: The experimental study on microcracks in hard coal beams using AE technique revealed various mechanisms of microcracks, with localized shear and tensile displacements and predominantly mode-I opening microcracks in the global coordinate system. The orientation of microcrack planes was found to be mostly vertical, with a majority of AE sources having angle less than 30 degrees with the horizontal direction. The study also showed energy dissipation mainly above the crack tip during coal fracture, with AE magnitudes following the Gutenberg-Richter relation.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2021)
Article
Computer Science, Interdisciplinary Applications
Yangyang Di, Enyuan Wang, Zhonghui Li, Xiaofei Liu, Baolin Li
Summary: Deep learning algorithms provide a new opportunity for identifying and filtering EMR and AE signals in coal rock burst disaster warnings. The proposed method, based on bidirectional long short-term memory recurrent neural networks and Fourier transform, intelligently identifies and filters signal sequences to improve the reliability of monitoring data.
EARTH SCIENCE INFORMATICS
(2021)
Article
Energy & Fuels
Bing Li, Enyuan Wang, Zheng Shang, Zhonghui Li, Baolin Li, Xiaofei Liu, Hao Wang, Yue Niu, Qian Wu, Yue Song
Summary: A new method using two-dimensional Convolutional Neural Network (CNN) was proposed to identify the precursor features of coal and gas outburst by decomposing AE or EMR signals with empirical mode decomposition and transforming one-dimensional modified signal into a two-dimensional time-frequency graph using the short-time Fourier transform. The proposed method achieved high recognition accuracy in identifying outburst risk in the Jinjia Coal Mine database.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Geological
V. Frid, E. Y. Wang, S. N. Mulev, D. X. Li
Summary: This technical note highlights the lack of a unified measurement methodology as a major obstacle to the progress of the Fracture induced ElectroMagnetic Radiation (FEMR) method for stress field assessment in underground conditions. It discusses the analysis of three FEMR parameters in relation to micro-crack dimensions and rock elastic properties, as well as the consideration of two seismic acoustic parameters for FEMR application in underground. The note proposes the inclusion of specific parameters in future FEMR measurement protocols for the successful design of FEMR instruments to assess stress state near mine workings.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2021)
Article
Engineering, Mechanical
Zhuang Sun, Yixin Zhao, Yirui Gao, Sen Gao, Davide Elmo, Xindong Wei
Summary: In this study, the modified semi-circular bending test was used to investigate the fracture toughness of coal samples with different sizes and bedding angles. The results showed that the fracture toughness of coal exhibits size effect and anisotropy. The crack initiation and propagation in hydraulic fracturing of coal seam can be influenced by bedding angles.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Ruiming Zhang, Kai Ma, Wenzhu Peng, Jinyang Zheng
Summary: The fatigue crack growth rates of 4130X steel in different hydrogen concentrations were measured, and the influence of hydrogen on crack behavior was analyzed. Results show that the crack growth rate increases with increasing hydrogen pressure, reaching a threshold at 87.5 MPa.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Hien Do, Phuc L. H. Ho, Canh V. Le, H. Nguyen-Xuan
Summary: In this study, a new method for determining the limit loads of fracture structures using the pseudo-lower bound method with adaptive quadtree meshes is proposed. The method overcomes the volumetric locking problem and handles the challenge of hanging nodes during refinement procedure by using quadtree meshes. The effectiveness of the approach is demonstrated through numerical validation.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Weimin Song, Yuxin Fan, Hao Wu, Liang Zhou
Summary: This study proposed a novel test method to characterize the I-II mixed fracture toughness of asphalt pavement and investigated the effects of reclaimed asphalt pavement (RAP) and loading rate. The results showed that loading rate and inclusion of RAP had positive effects on fracture toughness.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Zida Liu, Diyuan Li, Jianqiang Xia, Quanqi Zhu
Summary: In this study, the influence of flaw inclinations on the failure mechanism of fissured granite specimens was analyzed through a series of experiments. A quantitative method combining deep learning and scanning electron microscope was employed to identify the mesoscopic fracture mechanism of macroscopic cracks. The results indicated that the failure of fissured specimens was mainly caused by tensile stress and shear stress.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Jiabing Zhang, Yiling Chen, Ronghuan Du, Xianglian Zhao, Jun Wu
Summary: This study investigated the mechanical characteristics and crack propagation behavior of sandstone-like samples with single cracks under freeze-thaw cycles. The results demonstrated the significant effects of crack angle and freeze-thaw cycles on the compressive strength and stability of the samples. Confining pressure inhibited the freeze-thaw deterioration, and the acoustic emission signals exhibited good consistency with the stress-strain curves. The simulation results matched well with the experimental results, and five crack propagation modes were proposed.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Felix Boedeker, Pauline Herr, Anders Biel, Ramin Moshfegh, Stephan Marzi
Summary: Cohesive Zone Models with finite thickness are widely used for fracture mechanical modeling. Computational homogenization techniques are crucial for the development of advanced engineering materials. FFT-based homogenization scheme shows potential in reducing computational effort and has practical applications.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Sobhan Pattajoshi, Sonalisa Ray, Yugal Kishor Joshi
Summary: In this work, a novel multi-layer composite structure is proposed for protective shelter design. The dynamic behavior and mechanical performance of the multi-layer composite under projectile impact loading are investigated. The proposed composite target demonstrates enhanced penetration resistance and lesser damage compared to its reinforced concrete monolayer counterpart. An analytical model is also developed to predict the forces transmitted to the lowest layer for design purposes.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
H. M. Shodja, M. T. Kamali, B. Shokrolahi-Zadeh
Summary: This study proposes a semi-analytical method for calculating the stress intensity factor of an internally pressurized eccentric annular crack. By using hypersingular integral equations and conformal mapping, accurate values of SIFs along the crack edges can be obtained. The material properties of the elastic matrix do not affect the SIF values, as demonstrated through the investigation of geometric parameters.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Wen Hua, Zhanyuan Zhu, Wenyu Zhang, Jianxiong Li, Jiuzhou Huang, Shiming Dong
Summary: Accurate assessment and prediction of fracture behavior in cracked materials using mixed mode fracture criteria are crucial in fracture mechanics. This study comprehensively reviewed modified fracture criteria that incorporate T-stress for mixed mode I-II cracks. A comparative analysis was conducted between experimental results and theoretical predictions for five different cracked configurations. The study also discussed the effect of T-stress on crack initiation angle and fracture toughness, providing suggestions. The results showed variations in predictive accuracy across different cracked configurations due to disparities in T-stress. However, similar predictions were observed for semi-circular bend and edge-crack triangular specimens due to their similar biaxial stress ratio B. Different fracture criteria were suitable for different cracked configurations with positive or negative T-stresses.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Qing-qing Shen, Qiu-hua Rao, Wei Yi, Dian-yi Huang
Summary: This study proposes a theoretical approach to forecast multi-crack propagation trajectories in a finite plate. By calculating the stress intensity factor (SIF) and analyzing the influence of crack size, the criteria for crack initiation and propagation in a finite plate are established. Experimental results demonstrate that the SIF of multiple cracks in a finite plate is consistently larger than that of an infinite plate.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Songbai Li, Qiyun Zhu, Zhizhong Lu, Hongzhi Yan, Chu Zhu, Peize Li
Summary: This study investigates the effects of laser heating and laser shot peening on fatigue life of AA2524, and predicts the fatigue life using artificial neural networks and support vector regression models. The results show that laser heating and laser shot peening can significantly improve the fatigue life, and the neural networks have better prediction ability.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
V. Shlyannikov, A. Sulamanidze, D. Kosov
Summary: This paper presents experimental crack-growth data for thermomechanical fatigue conditions in nickel-based alloy components. The crack-growth experimental results are interpreted using finite element analyses and multi-physics numerical calculations. The results show that crack growth rate is slower under isothermal pure fatigue conditions, while it is faster under thermomechanical cyclic deformation conditions.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Tairui Zhang, Xin Ma, Bin Yang, Wenchun Jiang, Zhiqiang Ge, Xiaochao Liu
Summary: This study experimentally investigated the fracture toughness distributions in dissimilar metal welds. The predictions of fracture toughness were made using three criteria and an energy release rate model. The results showed that using the critical strain criterion and ERR model resulted in higher consistency compared to mini-CTs, while the predictions using the critical stress criterion had high dispersion. The study also investigated the source of errors through damage developments and SEM observations.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
Article
Engineering, Mechanical
Yike Dang, Zheng Yang, Xiaoyu Liu, Jianghao Guo
Summary: This study uses discrete element modeling to examine bedded rock failure with parallel defects. It is found that bedding influences crack propagation direction but has limited impact on final failure. Shear failure accumulates at the bridge area and defect tip, while tensile failure occurs during nucleation region development.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2024)
