Results 261 to 270 of about 23,505 (308)

Microscopic measurement of the local deformation field establishes the mechanistic origin of the fatigue threshold for soft brittle materials.

Soft Matter
Altuntas U, Li C, Kolinski JM.
europepmc   +1 more source

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Fatigue crack propagation behavior of fuel cell membranes after chemical degradation

International Journal of Hydrogen Energy, 2020
The durability of fuel cells is significantly impaired by chemical and mechanical degradations of perfluorosulfonic-acid membranes. However, how the mechanical degradation, especially the fatigue crack propagation behavior, is impacted by chemical ...
Shouwen Shi, Qiang Lin, Xiaodong Hong
exaly   +2 more sources

Planar slip-driven fatigue crack initiation and propagation in an equiatomic CrMnFeCoNi high-entropy alloy

International Journal of Fatigue, 2020
High-cycle fatigue crack initiation and propagation in an equiatomic CrMnFeCoNi high-entropy alloy were investigated using smooth specimens. The microstructural deformation characteristics, i.e., planar dislocation slip, significantly affected the ...
Motomichi Koyama, Shigeru Hamada, Kaneaki Tsuzaki   +2 more
exaly   +2 more sources

Effects of rim thickness and drive side pressure angle on gear tooth root stress and fatigue crack propagation life

, 2021
Gears are the most significant machine elements in power transmission systems. They are used in almost every area of the industry, such as small watches to wind turbines.
Oğuz Doğan, C. Yuce, F. Karpat
semanticscholar   +1 more source

An artificial neural network modeling approach for short and long fatigue crack propagation

Computational materials science, 2020
Fatigue crack growth-based damage modeling approaches have received great interest due to its critical importance in the industry. However, a substantial deficiency of an explicit fatigue damage model to quantify the accurate fatigue crack growth ...
S. Mortazavi, A. Ince
semanticscholar   +1 more source

Deformation in fatigue crack tip plastic zone and its role in crack propagation of titanium alloy with tri-modal microstructure

Materials Science & Engineering: A, 2019
A combination of scanning electron microscopy and electron backscatter diffraction is used to investigate the deformation in the fatigue crack tip plastic zone and its role in the crack propagation of Ti-6Al-2Zr-1Mo-1V alloy with a tri-modal ...
P. Gao, Zhenni Lei, X. X. Wang, M. Zhan
semanticscholar   +1 more source

Experimental study on fracture and fatigue crack propagation processes in concrete based on DIC technology

, 2020
A method to determine crack tip position and fracture process zone (FPZ) in concrete was proposed based on Bažant Crack Band Model (CBM) and digital image correlation (DIC) technique, which was described as: firstly, the critical crack opening ...
Dongyang Li, P. Huang, Chen Zhanbiao, G. Yao, Xinyan Guo, Xiao-Hong Zheng, Yang Yi   +6 more
semanticscholar   +1 more source

Corrosion Fatigue Crack Propagation Mechanism of High-Strength Steel Bar in Various Environments

, 2020
This paper investigated the corrosion fatigue crack propagation mechanism of high-strength steel bar HRB400 in various corrosive environments.
Zhongzhao Guo, Yafei Ma, Lei Wang, Jian-ren Zhang, I. Harik   +4 more
semanticscholar   +1 more source

Micro-structural aspects of fatigue crack propagation in atomistic-scale via the molecular dynamics analysis

, 2020
In this paper, the fatigue crack propagation is modeled using the Molecular Dynamics (MD) analysis based on the Embedded Atom Method (EAM). The crack growth simulation is performed for the single-crystal and poly-crystalline specimens subjected to cyclic
R. Yasbolaghi, A. Khoei
semanticscholar   +1 more source