Results 21 to 30 of about 34,155 (263)

Influence of micro-crack on the propagation of a semi-infinite crack [PDF]

open access: yes, 2020
The main objective of this research is to determine the influence of micro-crack on the propagation of a semi-infinite crack. This study is mainly based on the determination of the strain energy during the interaction between the semi-infinite crack and the neighboring microcrack.
Hamid Hamli Benzahar   +2 more
openaire   +1 more source

Micromechanical modelling of damage induced by delayedettringite formation in concrete [PDF]

open access: yesMATEC Web of Conferences, 2020
A multi-scale poromechanical model of damage induced by Delayed Ettringite Formation (DEF) as a consequence of progression of micro-cracks at the fine aggregate scale is developed.
Yammine Alexandre   +3 more
doaj   +1 more source

Macro- and micro-cracking in one-dimensional elasticity [PDF]

open access: yesInternational Journal of Solids and Structures, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
DEL PIERO, Gianpietro, L. Truskinovsky
openaire   +3 more sources

Crack path and fracture surface modifications in cement composites [PDF]

open access: yesFracture and Structural Integrity, 2015
There is a tremendous increase in the use of high strength and high performance self-consolidating cementitious composites due to their superior workability and mechanical strengths. Cement composites are quasi-brittle in nature and possess extremely low
Sajjad Ahmad   +5 more
doaj   +2 more sources

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

Analysis of the cracking mechanisms in pre-cracked sandstone under radial compression by moment tensor analysis of acoustic emissions [PDF]

open access: yesArchives of Civil Engineering, 2022
Rock masses, especially those with different pre-existing cracks, are prone to instability and failure under tensile loading, resulting in different degrees of engineering disasters.
Guozhu Wang   +7 more
doaj   +1 more source

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

Improved tensile properties, stable microstructures and isotropic deformation of nanocrystalline 304 stainless steel

open access: yesJournal of Materials Research and Technology, 2023
The tensile properties of nanocrystalline 304 stainless steel plate (NSSP-304) produced by severe rolling technology and its conventional polycrystalline 304 stainless steel (CPSS-304) counterpart were studied at room temperature.
S.G. Wang   +4 more
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

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

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