Results 81 to 90 of about 210,758 (203)

Experimental study on anisotropy characteristics of fracture toughness and fracture process zone in anthracite coal

Meitan xuebao
In order to determine the influence of anisotropy induced by primary bedding structure on fracture toughness and fracture process zone (FPZ) incubation characteristics of anthracite, the notched semi-circular bending (NSCB) anthracite samples with ...
Shuang GONG, Yixin ZHAO, Hansong ZHANG, Yongheng ZHOU, Canxin ZHAO, Wen WANG   +5 more
doaj   +1 more source

Experimental study on the self-suspending proppant-laden flow in a single fracture

REM: International Engineering Journal
The flow of proppant-laden fluid (PLF) in the fracture is a typical problem of solid-liquid two phase flow, and the transportation and deposition of proppants are essential to determine the flow conductivity of hydraulic fracturing.
Peng Li, Xuhui Zhang, Xiaobing Lu, Jianzheng Su, Zhiwen Huang, Xin Fan   +5 more
doaj   +1 more source

Time dependent fracture of polymers [PDF]

, 1989
The fracture behavior of polymers is reviewed with emphasis on the time dependent aspects of the problem. Following a delineation of the history of crack propagation investigations in linearly viscoelastic materials, the effects of temperature and ...
Knauss, W. G.
core  

Laws of crack motion and phase-field models of fracture

, 2008
Recently proposed phase-field models offer self-consistent descriptions of brittle fracture. Here, we analyze these theories in the quasistatic regime of crack propagation.
Adda-Bedia, Alain Karma, Ambrosio, Amestoy, Aranson, Barenblatt, Bourdin, Brener, Broberg, Cotterell, Deegan, Eastgate, Eshelby, Eshelby, Francfort, Goldstein, Griffith, Gurtin, Hakim, Hauch, Henry, Henry, Hutchinson, Karma, Karma, Katzav, Landau, Marconi, Marder, Marder, Mumford, Oleaga, Rice, Sih, Sommer, Spatschek, Vincent Hakim, Wang, William   +38 more
core   +2 more sources

Dual-bond fracture metamaterials with full-field extrinsic toughening

Nature Communications
Fracture resistance presents a pivotal challenge in mechanical metamaterials, as traditional designs often fail to mitigate crack propagation and enhance energy dissipation. Despite efforts to enlarge the fracture process zone, energy dissipation remains
Zhiqiang Meng, Peidong Lei, Boyuan Hou, Bin Liu, Yifan Wang   +4 more
doaj   +1 more source

Mixed-Mode I-II Fracture Process Zone Characteristic of the Four-Point Shearing Concrete Beam. [PDF]

Materials (Basel), 2020
Li G, Ren Z, Yu J.
europepmc   +1 more source

Elastic wave prospecting of water-conducting fractured zones in coal mining

Scientific Reports
In order to understand the development law of water-conducting fractures in overlying strata during the mining process of coal seam, an elastic wave exploration method based on key stratum theory is proposed to predict the height of water-conducting ...
Bingchao Zhao, Shenglin He, Kun Bai, Xiaoxiao Lu, Wei Wang   +4 more
doaj   +1 more source

Visualization and quantitative characterization methods of post-blast rock fracture structure

Meitan xuebao
The quantitative characterization of post-blast rock damage has been a key problem in the field of engineering blasting, and the process of post-blast rock crack initiation, expansion and evolution until penetration is the main cause of rock rupture.
Yanbing WANG, Zhaoyang WANG, Dairui FU, Lin LUO   +3 more
doaj   +1 more source

Determining the Fracture Process Zone Length and Mode I Stress Intensity Factor in Concrete Structures via Mechanoluminescent Technology. [PDF]

Sensors (Basel), 2020
Kim SK, Shin HG, Timilsina S, Kim JS.
europepmc   +1 more source

Study on development height and permeability laws of water-conducting fracture zone in overlying strata of goaf

Meikuang Anquan
In order to construct an underground water reservoir for storing high-salinity water and achieve zero discharge through the treatment of highly mineralized mine water, it is necessary to accurately evaluate the permeability coefficient of the overlying ...
Peng ZHU, Xu LI, Yaoping CHEN, Dawei KUAI, Qiang GUO   +4 more
doaj   +1 more source