Results 11 to 20 of about 24,785 (260)

Dynamic Crack Propagation and Its Interaction With Micro-Cracks in an Impact Problem [PDF]

open access: yesJournal of Engineering Materials and Technology, 2020
AbstractThe dynamic fracture behavior of brittle materials that contain micro-level cracks should be examined when material subjected to impact loading. We investigated the effect of micro-cracks on the propagation of macro-cracks that initiate from notch tips in the Kalthoff–Winkler experiment, a classical impact problem.
Candaş, Adem   +2 more
openaire   +3 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

Crack source and propagation of AZ91-0.9Gd alloy

open access: yesJournal of Materials Research and Technology, 2022
Formation process of main compounds in AZ91-0.9Gd alloy was studied, and main crack sources and fracture mechanism were analyzed. Experimental results show that AZ91-0.9Gd alloy is mainly composed of α-Mg, Mg17Al12, bulk Al2Gd compound and a small amount
Huisheng Cai   +5 more
doaj   +1 more source

Study on relative shrinkage of cement-based micro-concrete for durable concrete repair

open access: yesCleaner Engineering and Technology, 2022
This paper presents the investigation into the crack formation in micro-concrete due to their bond strength and drying shrinkage under normal and accelerated drying conditions at the interface between the substrate and micro concrete in a concrete repair.
Dipti Ranjan Nayak   +2 more
doaj   +1 more source

Repair of concrete existing micro-cracks by use of microbially induced carbonate precipitation [PDF]

open access: yesMATEC Web of Conferences, 2023
Micro-crack is the start of concrete deterioration and failure, though it does not decrease the bearing capacity in the beginning. In order to prolong the service life of existing concrete structures, it is important to repair the existing micro-cracks ...
Wang Jianyun, Gao Ruixiao, Ma Jinhu
doaj   +1 more source

Crack study of recasting layer on workpiece surface in Micro-EDM [PDF]

open access: yesMATEC Web of Conferences, 2022
In this paper, the crack phenomenon of different materials was studied according to the surface morphology of recasting layer of micro EDM workpiece. In this paper, high-speed steel and titanium alloy are used as workpiece materials, and the RC pulse ...
Wang Chunmei   +3 more
doaj   +1 more source

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

Solar PV’s Micro Crack and Hotspots Detection Technique Using NN and SVM

open access: yesIEEE Access, 2021
For lifelong and reliable operation, advanced solar photovoltaic (PV) equipment is designed to minimize the faults. Irrespectively, the panel degradation makes the fault inevitable.
David Prince Winston   +7 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

Role of MRI for detecting micro cracks in teeth [PDF]

open access: yesDentomaxillofacial Radiology, 2016
To evaluate the limit of tooth crack width visualization by two MRI pulse sequences in comparison with CBCT.Two extracted human teeth with known crack locations and dimensions, as determined by reference standard microCT, were selected for experimental imaging.
Djaudat, Idiyatullin   +3 more
openaire   +2 more sources

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