Results 1 to 10 of about 374,450 (357)

Quantitative characterization of damage characteristics of coal using evaluation parameters considering the spatial structural characteristics of fractures [PDF]

Scientific Reports
Stable underground tunnels and gas drainage boreholes are important guarantees for safe and efficient coal mining. The stability of these structures is closely related to the mechanical properties of coal and rock damage.
Jin Yan, Xiaoming Ni, Erlei Su, Ruize Niu   +3 more
doaj   +2 more sources

Effective Management of Femur Fracture Using Damage Control Orthopedics Following Fat Embolism Syndrome. [PDF]

Cureus, 2020
Wilson A, Hanandeh A, Shamia AA, Louie K, Donaldson B.   +4 more
europepmc   +3 more sources

Surface fracture behavior and subsurface damage of polycrystalline yttrium aluminum garnet ceramics in Vickers indentation

Journal of Materials Research and Technology, 2023
In this paper, the Vickers indentation experiments were carried out under different loads on the polished surface of polycrystalline yttrium aluminum garnet (YAG) ceramics to investigate the surface fracture behavior and subsurface damage under quasi ...
Hang Yin, Sheng Wang, Qingliang Zhao, Jian Zhang, Xiaojian Mao, Bing Guo   +5 more
doaj   +1 more source

Fracture Damage Characteristics of Rock Under Pre-Peak and Post-Peak Cyclic Loading Condition

Shanghai Jiaotong Daxue xuebao, 2022
In the process of rock excavation, cyclic loading may occur before or after the peak value. In order to obtain the fracture damage evolution characteristics of rock under the pre-peak and the post-peak cyclic loading condition, the fracture tests of ...
TANG Jianhui, CHEN Xudong, BAI Yin
doaj   +1 more source

A 3D peridynamic fluid–solid coupling damage model of hydraulic fracture propagation

Energy Science & Engineering, 2023
Peridynamics provides a new model and method for describing material failure and fracture development. In this study, a three‐dimensional peridynamic fluid–solid coupling model of hydraulic fracture propagation was established.
Yalong Li, Zhiming Hu, Zhipeng Qiu, Yafeng Qiu   +3 more
doaj   +1 more source

Real-Time Early Detection of Crack Propagation Precursors in Delayed Fracture of Soft Elastomers

Physical Review X, 2023
The fracture of materials can take place below the critical failure condition via the slow accumulation of internal damage followed by fast crack propagation.
Jianzhu Ju, Gabriel E. Sanoja, Med Yassine Nagazi, Luca Cipelletti, Zezhou Liu, Chung Yuen Hui, Matteo Ciccotti, Tetsuharu Narita, Costantino Creton   +8 more
doaj   +1 more source

Rock and soil damage-fracture space mechanics: The divisional damage-fracture theory [PDF]

Proceedings on Intelligent Systems and Knowledge Engineering (ISKE2007), 2007
This article points out each of the current analytical methods used in CT mechanics of rock and soil avail of observation, wasting the precious quantitative information of CT datum. Based on the conception of the intercepted section in the damage-fracture space, utilizing the knowledge of the set theory, the measure theory and the Lebesgue integral ...
Xiaotao Yin, Weihua Ding, Houqun Chen, Faning Dang   +3 more
openaire   +1 more source

Numerical Study about the Influence of Superimposed Hydrostatic Pressure on Shear Damage Mechanism in Sheet Metals

Metals, 2021
It is generally accepted that the superimposed hydrostatic pressure increases fracture strain in sheet metal and mode of fracture changes with applying pressure.
Mohammadmehdi Shahzamanian, Chris Thomsen, Amir Partovi, Zhutian Xu, Peidong Wu   +4 more
doaj   +1 more source

Study on Damage Model and Damage Evolution Characteristics of Backfill with Prefabricated Fracture under Seepage-Stress Coupling

Advances in Materials Science and Engineering, 2020
Aiming at the backfill with prefabricated fracture under seepage-stress coupling, the concepts of fracture macrodamage, loaded mesodamage, seepage mesodamage, and total damage of backfill were proposed.
Jifeng Hou, Zhongping Guo, Weizhen Liu, Hengze Yang, WenWu Xie   +4 more
doaj   +1 more source

Semi-Analytical Rate Decline Solutions for a Refractured Horizontal Well Intercepted by Multiple Reorientation Fractures with Fracture Face Damage in an Anisotropic Tight Reservoir

Energies, 2021
Refracturing treatment is an economical way to improve the productivity of poorly or damaged fractured horizontal wells in tight reservoirs. Fracture reorientation and fracture face damage may occur during refracturing treatment.
Mingxian Wang, Xiangji Dou, Ruiqing Ming, Weiqiang Li, Wenqi Zhao, Chengqian Tan   +5 more
doaj   +1 more source