Results 11 to 20 of about 213,966 (314)

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

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

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

Modelling fluid injection-induced fracture activation, damage growth, seismicity occurrence and connectivity change in naturally fractured rocks

International Journal of Rock Mechanics And Mining Sciences, 2021
We develop a fully-coupled hydro-mechanical model to simulate fluid injection-induced activation of pre-existing fractures, propagation of new damages, development of seismic activities, and alteration of network connectivity in naturally fractured rocks.
Q. Lei, N. Gholizadeh Doonechaly, C. Tsang   +2 more
semanticscholar   +1 more source

Size effect on the shear damage under low stress triaxiality in micro-scaled plastic deformation of metallic materials

Materials & Design, 2020
Micro-forming is one of the major micro-manufacturing methods with promising application potentials, in which the damage response and fracture behavior need to be insightfully addressed.
Jilai Wang, Chuanzheng Li, Yi Wan, Chengpeng Zhang, Jiaqi Ran, M.W. Fu   +5 more
doaj   +1 more source

Finite element modelling of thin intermetallic compound layer fractures

Journal of Mechanical Engineering and Sciences, 2017
A thin intermetallic compound (IMC) of solder ball joint induces strong stress concentration between the pad and solder where a crack propagated near the IMC layer.
Ooi Eang Pang, Ruslizam Daud, Nasrul Amri Mohd Amin, Mohd Afendi Rojan, Mohd Shukry Abd Majid   +4 more
doaj   +1 more source

Analysis of Damage Development Process Under Influence of Single Fracture of Loaded Similar Materials

Meikuang Anquan, 2020
In order to reveal the meso-damage mechanism of physical simulation of coal and rock dynamic disasters, using YYW- Ⅱ uniaxial compression tester and PCIE-8 acoustic emission (AE) monitoring system, the damage space development of samples with different ...
CHENG Xiaoyu
doaj   +1 more source

Research on Basic Mechanical Properties and Fracture Damage of Coal Gangue Concrete Subjected to Freeze-Thaw Cycles

Advances in Materials Science and Engineering, 2021
In order to study the freeze-thaw damage law of the basic mechanical properties and fracture performance of coal gangue concrete, four kinds of coal gangue concrete specimens with different replacement rates of coal gangue coarse aggregate were designed,
Min Huang, Jingmin Duan, Jiakai Wang
doaj   +1 more source

A Gradient-Enhanced Damage Approach to Fracture [PDF]

Le Journal de Physique IV, 1996
A gradient-enhanced damage is formulated in which the Laplacian of the internal variable which memorises the damage enters the damage loading function in addition to the conventional dependence on this internal variable itself. The computational setting for this higher-order continuum model is fully elaborated.
de Borst, R., Benallal, A., Heeres, O.
openaire   +3 more sources

A Generalized Interpolation Material Point Method for Shallow Ice Shelves. 2: Anisotropic Nonlocal Damage Mechanics and Rift Propagation

Journal of Advances in Modeling Earth Systems, 2021
Ice shelf fracture is responsible for roughly half of Antarctic ice mass loss in the form of calving and can weaken buttressing of upstream ice flow.
Alex Huth, Ravindra Duddu, Ben Smith
doaj   +1 more source