Results 31 to 40 of about 49,671 (256)

Modeling of deep indentation in brittle materials

Materials Research Express, 2020
We modelled deep indentation in brittle materials via a tensorial approach in three dimensions. Experimentally, we performed deep indentation in base catalyzed aerogels.
Nathalie Olivi-Tran, Florence Despetis, Annelise Faivre   +2 more
doaj   +1 more source

Evaluation of Double-Sided Planetary Grinding Using Diamond Wheels for Sapphire Substrates

Crystals, 2018
Double-sided planetary grinding as an efficient and precise machining method is used for the rapid thinning and flattening process of sapphire substrate.
Lijuan Wang, Zhongwei Hu, Yiqing Yu, Xipeng Xu   +3 more
doaj   +1 more source

Macromechanical Failure Criteria: Elasticity, Plasticity and Numerical Applications for the Non-Linear Masonry Modelling

Buildings, 2022
Sometimes it is difficult to choose the most appropriate failure criterion for the problem analyzed. For brittle materials, attention must be paid to the availability of experimental data and the calibration of the representative parameters, within the ...
Elide Nastri, Paolo Todisco
doaj   +1 more source

Diamond Grinding Wheel Condition Monitoring Based on Acoustic Emission Signals

Sensors, 2021
Acoustic emission (AE) phenomenon has a direct relationship with the interaction of tool and material which makes AE the most sensitive one among various process variables.
Guo Bi, Shan Liu, Shibo Su, Zhongxue Wang   +3 more
doaj   +1 more source

Avaliação do desgaste abrasivo causado pelas cerâmicas Duceram e Vita em resinas compostas pelo método do disco retificado Evaluation of the abrasive wear caused by the ceramics Duceram and Vita in composite resins by the method of the ground disk

Cerâmica, 2004
O presente trabalho apresenta uma metodologia confiável e de execução rápida para a avaliação do desgaste abrasivo entre as cerâmicas Duceram e Vita nas resinas compostas Z-100 e Charisma.
T. V. França, E. C. Bianchi, P. R. de Aguiar, R. Y. Fusse, R. E. Catai, C. A. de Freitas   +5 more
doaj   +1 more source

Ductile/Brittle Transition of Brittle Materials in Indentation.

Journal of the Society of Materials Science, Japan, 2002
The ductile/brittle transition condition in an indentation of brittle materials is derived to utilize the prediction of the ductile mode abrading conditions. By modeling the action of an abrasive as a semi? spherical indentation, the ductile/brittle transition condition is represented by a critical radius (ac) of a spherical indenter: at a larger ...
TANAKA, Yoshio, MURATA, Kazuo, MIZUTANI, Katsumi, OGASAWARA, Okito   +3 more
openaire   +2 more sources

Dynamic data-model fusion modeling technology for monitoring, prediction, and optimization in machining: A comprehensive review

Engineering Science and Technology, an International Journal
Accurate modeling of mechanical machining is crucial for process monitoring, outcome prediction, and parameter optimization. However, traditional static models fail to account for the dynamic characteristics of machining, leading to significant errors ...
Yang Xiao, Deng Zhaohui, Zhuo Rongjin, Xu Xipeng, Liu Wei, Lv Lishu   +5 more
doaj   +1 more source

Investigating the Fracture Process and Tensile Mechanical Behaviours of Brittle Materials under Concentrated and Distributed Boundary Conditions

Applied Sciences, 2023
In this study, concrete was selected to investigate the real-time splitting tensile mechanical and fracture behaviours of brittle materials using the Brazilian test under concentrated and distributed boundary conditions.
Haozhe Liang, Xiaozu Fang, Xinlu Yu, Yingqian Fu, Gangyi Zhou   +4 more
doaj   +1 more source

Experimental Study on Preparation of Ultra-Hard Brittle Materials Based on Electrochemical Processing

Chemical Engineering Transactions, 2018
It is of great engineering significance to study methods for processing and preparing ultra-hard brittle materials with low processing cost and high processing efficiency.
Xiaoye Wang, Jiao Zhang, Shunda Hu
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source