Results 1 to 10 of about 366,685 (211)
Sensors, 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
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Machine Vision-Based Fatigue Crack Propagation System
Sensors, 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
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Evaluation of Surface Crack Development and Soil Damage Based on UAV Images of Coal Mining Areas
Land, 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
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Biaxial testing of metal samples on testing machines with one load axis [PDF]
Омский научный вестник, 2020 The necessity of experimental studies to assess the growth rate of fatigue cracks under biaxial loading is substantiated. An overview of testing machines for biaxial testing of metal samples, devices and fixtures used to ensure biaxial loading is made.
K. A. Vansovich, V. I. Yadrov
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Surface Instabilities in Cracks [PDF]
Physical 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.
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Assessment of crack growth development in main pipeline on the basis of elastoplastic model [PDF]
Омский 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
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Applied Sciences, 2021 Tooth surface cracks are considered as the early stage of the development of tooth surface spalling failure. Understanding the excitation mechanism of surface cracks has a great significance in the early diagnosis of spalling faults.
Lan-tao Yang +5 more
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A Sensitive Frequency Range Method Based on Laser Ultrasounds for Micro-Crack Depth Determination
Sensors, 2022 The laser ultrasonic method using the characteristics of transmitted Rayleigh waves in the frequency domain to determine micro-crack depth is proposed.
Haiyang Li +4 more
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Influence of Surface Crack Propagation on Ring-Shell Structure [PDF]
MATEC 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
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Grinfeld instability on crack surfaces [PDF]
Physical 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.
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