Results 31 to 40 of about 1,020,842 (201)

Experimental investigation on dynamic evolution characteristics of micro-cracks for sandstone samples under uniaxial compression

open access: yesYantu gongcheng xuebao, 2019
The dynamic evolution characteristics of micro-cracks are the important information of rock failure for their significance in analyzing the failure process of rockburst and predicting the rock dynamic hazard.
WANG Chun-lai 1, HOU Xiao-lin 1, LI Hai-tao 2, ZHANG Shu-jiang 3, TAO Zhi-gang 4
doaj   +1 more source

Macro-fracture mode and micro-fracture mechanism of shale

open access: yesPetroleum Exploration and Development, 2015
Through the study of fabric characteristics, mechanical characteristics, crack and microstructure characteristics of shale, the micro-mechanism, controlling factors and fracture modes of shale macro-fracture are revealed.
Jianhua ZHONG   +7 more
doaj   +1 more source

Nonlinear Lamb Wave Micro-Crack Direction Identification in Plates with Mixed-Frequency Technique

open access: yesApplied Sciences, 2020
This paper investigates the direction identification of micro-cracks with nonlinear components generated by Lamb wave with frequency-mixing technique. Three-dimensional finite element simulations were carried out to investigate the interaction mechanism ...
Liqiang Guan   +3 more
doaj   +1 more source

Solar cells micro crack detection technique using state-of-the-art electroluminescence imaging

open access: yesJournal of Science: Advanced Materials and Devices, 2019
In this article, we present the development of a novel technique that is used to enhance the detection of micro cracks in solar cells. Initially, the output image of a conventional electroluminescence (EL) system is determined and reprocessed using the ...
Mahmoud Dhimish, Violeta Holmes
doaj   +1 more source

Analysis of enamel microhardness at various hard tissue states and depth of the microfissures

open access: yesZaporožskij Medicinskij Žurnal, 2013
In clinical practice are often diagnosed precervical lesions: wedge-shaped defects and cracks. Long phases of the confrontation of the body as a damaging influence in the formation of thicker tissue sections of higher salinity, density and sustainability
S. P. Yarova, I. I. Zabolonaya
doaj   +1 more source

Modelling intergranular and transgranular micro-cracking in polycrystalline materials [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
V. Gulizzi, C.H. Rycroft, I. Benedetti
openaire   +5 more sources

jfriedman-micro/interaction_stability_analysis: Initial_release

open access: yes, 2023
Code and data used for analyzing how much interactions change when the environment (carbon source) or on of the interacting species ...
jfriedman-micro
core   +1 more source

An Investigation of Thermal Effects on Micro-Properties of Sudbury Norite by CT Scanning and Image Processing Method

open access: yesMining, 2022
Rock is constantly subjected to stress and thermal conditions. Thermal-induced micro-cracks will be generated as a result of different thermal expansion gradations between different minerals. This characteristic was investigated in this paper by studying
Sheng-Lin Wang   +3 more
doaj   +1 more source

Numerical study on compressive mechanical characteristics of filled jointed rock under confining pressure based on PFC

open access: yesFrontiers in Ecology and Evolution, 2023
Confining pressure is an important factor affecting the strength and deformation characteristics of rock mass, it is of great significance to study the mechanical and deformation characteristics of jointed rock mass under confining pressure for the ...
Lang Song   +5 more
doaj   +1 more source

Mixed Variational Formulations for Micro-cracked Continua in the Multifield Framework [PDF]

open access: yesAlgorithms, 2009
Within the framework of multifield continua, we move from the model of elastic microcracked body introduced in (Mariano, P.M. and Stazi, F.L., Strain localization in elastic microcracked bodies, Comp. Methods Appl. Mech. Engrg. 2001, 190, 5657–5677) and propose a few novel variational formulations of mixed type along with relevant mixed FEM ...
Matteo Bruggi, Paolo Venini
openaire   +3 more sources

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