Results 31 to 40 of about 127,705 (267)

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

open access: yesJournal 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

Turbulent Fracture Surfaces: A Footprint of Damage Percolation? [PDF]

open access: yesPhysical Review Letters, 2015
We show that a length scale xi can be extracted from the spatial correlations of the "steep cliffs" that appear on fracture surface. Above xi, the slope amplitudes are uncorrelated and the fracture surface is mono-affine. Below xi, long-range spatial correlation lead to a multi-fractal behavior of the surface, reminiscent of turbulent flows.
Vernède, Stéphane   +2 more
openaire   +4 more sources

A simple damage and fracture model of brain parenchyma for haptic brain surgery simulations

open access: yesJournal of Biomechanical Science and Engineering, 2016
Dissection and removal of lesion areas are fundamental operations in brain surgeries. Therefore, damage and fracture models are needed to simulate dissection and removal operations.
Xiaoshuai CHEN   +4 more
doaj   +1 more source

Experimental Study on Damage Fracture Law of Coal from Solid-Propellant Blasting

open access: yesEnergies, 2022
The low permeability of coal seams has always been the main bottleneck restricting coalbed methane drainage. In this paper, a coal seam anti-reflection technology with solid-propellant blasting was proposed, and the composition and proportion of the ...
Huaibao Chu   +7 more
doaj   +1 more source

Study on the influence of oilfield water injection on casing damage [PDF]

open access: yesE3S Web of Conferences, 2023
The casing damage of oil and water wells has seriously affected the normal production of the oilfield. This paper analyzes the high occurrence of casing damage in Saertu oil layer, and finds that there is a contradiction between the water injection ...
Ding Xiangnan
doaj   +1 more source

Punching Fracture Experiments and Simulations of Unstiffened and Stiffened Panels for Ships and Offshore Structures

open access: yes한국해양공학회지, 2020
Ductile fracture prediction is critical for the reasonable damage extent assessment of ships and offshore structures subjected to accidental loads, such as ship collisions and groundings.
Sung-Ju Park, Joonmo Choung
doaj   +1 more source

Hot damage evolution in a high strength aluminum alloy during hot forming: a study using the Gurson–Tvergaard–Needleman model

open access: yesJournal of Materials Research and Technology, 2021
The investigation on the formability of 7075-T6 aluminum alloy at elevated temperatures is significant due to its low plasticity at room temperature. Meso-Damage mechanics suggests that the growth and accumulation of micro-voids is an important factor ...
Xiangji Li, Meng Xu, Zhiqiang Zhang
doaj   +1 more source

STUDY ON DUCTILE FRACTURE CRITERION PARAMETERS OF HIGH STRENGTH DUPLEX STEEL PLATE

open access: yesJixie qiangdu, 2023
In order to predict the ductile fracture failure of different high-strength steel plates, the damage parameters of the ductile fracture criterion were calibrated by designing the tensile, shear and fracture failure tests of four high-strength steel ...
MA ChunHui   +5 more
doaj  

A Stochastic Bulk Damage Model Based on Mohr-Coulomb Failure Criterion for Dynamic Rock Fracture

open access: yesApplied Sciences, 2019
We present a stochastic bulk damage model for rock fracture. The decomposition of strain or stress tensor to its negative and positive parts is often used to drive damage and evaluate the effective stress tensor. However, they typically fail to correctly
Bahador Bahmani   +2 more
doaj   +1 more source

Influencing factors of conductivity of complex fractures in coalbed methane reservoir

open access: yesMeikuang Anquan, 2022
Complex fracture network is easy to form after hydraulic fracturing in coalbed methane reservoir. In order to study the influencing factors of complex fracture conductivity, an improved proppant filling fracture conductivity tester was used to evaluate ...
ZHANG Hongjun, WANG Yuan, YANG Han
doaj   +1 more source

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