Results 41 to 50 of about 29,262 (266)

Claustrum Involvement in New Onset Refractory Status Epilepticus: A Systematic Review

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The claustrum sign is a distinctive neuroimaging finding characterized by bilateral T2/FLAIR hyperintensity of the claustrum, one of the most interconnected regions of the human brain. It was first described in new‐onset refractory status epilepticus (NORSE) and febrile infection–related epilepsy syndrome (FIRES).
Margherita Burani, Lorenzo Muccioli, Giada Giovannini, Niccolò Orlandi, Francesca Bisulli, Stefano Meletti   +5 more
wiley   +1 more source

Numerical investigation on the prefabricated crack propagation of FV520B stainless steel

Results in Physics, 2017
FV520B is a common stainless steel for manufacturing centrifugal compressor impeller and shaft. The internal metal flaw destroys the continuity of the material matrix, resulting in the crack propagation fracture of the component, which seriously reduces ...
Juyi Pan, Ming Qin, Songying Chen
doaj   +1 more source

Prediction of the Crack Front Shape of the Corner Interface Crack

Applied Sciences, 2023
This study delves into the analysis of interface crack propagation originating from a right-angle corner along the bonding plane between the two plates composed of dissimilar materials.
Jelena M. Djoković, Ružica R. Nikolić, Jana Pastorková, Robert Ulewicz   +3 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Effect of grain structure on fatigue crack propagation behavior of 2024 aluminum alloy under different stress ratios

Materials & Design
The fatigue load that a material experiences and its microstructure are important factors influencing fatigue crack propagation behavior. This study employed laser scanning microscopy and electron backscatter diffraction (EBSD) technology, along with ...
Hongtao Chen, Shuyao Liu, Pai Wang, Xibin Wang, Zhibing Liu, Fadi Aldakheel   +5 more
doaj   +1 more source

Study of the Kalthoff–Winkler experiment using an ordinary state-based peridynamic model under low velocity impact

Advances in Mechanical Engineering, 2019
To overcome the limitation of constant Poisson’s ratio in bond-based peridynamics, an ordinary state-based peridynamic (OSB PD) model was applied to simulate dynamic crack propagation in Kalthoff–Winkler specimen subjected to a low velocity impact.
JS Guo, WC Gao
doaj   +1 more source

Edge crack growth of mortar plate specimens under uniaxial loading tests

Journal of Rock Mechanics and Geotechnical Engineering, 2019
In this paper, a compression-to-tension conversion technique is developed by applying predominant mode I loading test, using a servo-controlled compression system. The technique is applied to thin mortar plate specimens of different widths that include a
Zhenghong Huang, Shouchun Deng, Haibo Li, Hong Zuo   +3 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Analysis on the Root Crack Propagation Path and Its Influencing Factor of Spur Gear

Jixie chuandong, 2021
Under the action of alternating load，the gear is easy to generate fatigue crack fault in the tooth root，and the crack propagation will not only affect the transmission accuracy，but even cause serious safety accident and economic loss.
Qikun Liu, Shengli Wu, Zhi Li, Xiaochun Jian   +3 more
doaj