Results 1 to 10 of about 363,241 (312)

Analysis of Tilt Effect on Notch Depth Profiling Using Thin-Skin Regime of Driver-Pickup Eddy-Current Sensor

open access: yesSensors, 2021
Electromagnetic eddy current sensors are commonly used to identify and quantify the surface notches of metals. However, the unintentional tilt of eddy current sensors affects results of size profiling, particularly for the depth profiling. In this paper,
Mingyang Lu   +4 more
doaj   +1 more source

Influence of Surface Crack Propagation on Ring-Shell Structure [PDF]

open access: yesMATEC Web of Conferences, 2022
In this paper, the surface cracks of deep-sea ring-shell structures are studied. In this paper, the geometric and physical parameters of 1000m underwater titanium alloy ring shell structure were analyzed.
Lin Haichao
doaj   +1 more source

Machine Vision-Based Fatigue Crack Propagation System

open access: yesSensors, 2022
This paper introduces a machine vision-based system promising low-cost solution for detecting a fatigue crack propagation caused by alternating mechanical stresses.
Jan Gebauer   +4 more
doaj   +1 more source

Evaluation of Surface Crack Development and Soil Damage Based on UAV Images of Coal Mining Areas

open access: yesLand, 2023
Coal mining is necessary for the development of society but at the same time causes ecological damage that must also be repaired based on science. In the arid and semi-arid regions of northwest China, surface cracks are one of the major geo-environmental
Fan Zhang   +3 more
doaj   +1 more source

Assessment of crack growth development in main pipeline on the basis of elastoplastic model [PDF]

open access: yesОмский научный вестник, 2019
A method for predicting the growth of surface cracks in the wall of the main pipeline under action of operational loads is proposed. The elastoplastic model of surface crack growth under biaxial loading is described on the example of steel 20.
К. А. Vansovich   +3 more
doaj   +1 more source

Surface Instabilities in Cracks [PDF]

open access: yesPhysical Review Letters, 1998
The surface of a propagating crack is shown to be morphologically unstable because of the nonhydrostatic stresses near the surface (Asaro-Tiller-Grinfeld instability). We find that the energy of a wavy crack becomes smaller than the energy of a straight crack if the crack length is a few times larger than the Griffith length.
Brener, E. A., Marchenko, V. I.
openaire   +2 more sources

Surface crack growth subject to bending and biaxial tension-compression [PDF]

open access: yesFracture and Structural Integrity, 2016
Fatigue surface crack growth and the in-plane and out-of-plane constraint effects are studied through experiments and computations for aluminium alloy D16T.
V. Shlyannikov   +3 more
doaj   +1 more source

Probability-Based Crack Width Estimation Model for Flexural Members of Underground RC Box Culverts

open access: yesApplied Sciences, 2022
Crack control for slabs and beams in current design practices in Korea are based on the Frosch’s model, which is adapted in ACI 318. It is more difficult to have consistent quality control in underground construction sites, such as the RC box culverts ...
Sang-Hyo Kim   +4 more
doaj   +1 more source

Grinfeld instability on crack surfaces [PDF]

open access: yesPhysical Review E, 2001
The surface of a propagating crack is shown to be morphologically unstable because of the nonhydrostatic stresses near the surface (Asaro-Tiller-Grinfeld instability). We find numerically that the energy of a wavy crack becomes smaller than the energy of a straight crack if the crack length exceeds a critical length L(c)=5.18 L(G) (L(G) is the Griffith
Spatschek, R., Brener, E. A.
openaire   +3 more sources

Surface Crack Growth in Offshore Metallic Pipes under Cyclic Loads: A Literature Review

open access: yesJournal of Marine Science and Engineering, 2020
The surface crack, also known as the partly through-thickness crack, is a serious threat to the structural integrity of offshore metallic pipes. In this paper, we review the research progress in regard to surface crack growth in metallic pipes subjected ...
Zongchen Li, Xiaoli Jiang, Hans Hopman
doaj   +1 more source

Home - About - Disclaimer - Privacy