Results 71 to 80 of about 1,020,842 (201)

Micro armed concrete and cracks on slabs

, 2017
The purpose of this work is to describe fibres properties, micro armed concrete as a composite material and the use of it as a solution to prevent the cracks on slabs. The purpose of fiber usage inside a concrete mass is to create a composite material by
Krelani, Visar, Mujaj, Armend, Ahmeti, Patriot, Sianani, Besian   +3 more
core   +1 more source

Mechanism of Micro-Crack Propagation in Semicrystalline Polymers [PDF]

Journal of Research Updates in Polymer Science, 2014
The development and propagation of cracks is the principle reason for premature mechanical failure of polymeric materials. The well known and widely accepted fracture theories, namely the Griffith fracture theory and the Irwin model, both assume that fracture takes place through the presence of preexisting cracks in the polymer. These minor preexisting
openaire   +1 more source

Experimental and theoretical studies of corrosion fatigue in a high strength steel. [PDF]

, 1995
The present work consists of both experimental and theoretical aspects of corrosion fatigue in a high strength steel. Fatigue tests were conducted under fully reversed shear loading in an aerated 0.6M NaC1 solution at pH6, for a silico-manganese ...
Wu, Xiao Dong
core  

Microstructure Evolution and Impedance Spectroscopy Characterization of Thermal Barrier Coating Exposed to Gas Thermal-shock Environment

Cailiao gongcheng, 2017
Gas thermal-shock experiment of thermal barrier coatings (TBCs) was carried out in air up to 1250℃ in order to simulate the thermal cycling process of the engine blades during the start heating and shut down cooling.
CHEN Wen-long, LIU Min, ZHANG Ji-fu, SONG Jin-bing   +3 more
doaj   +1 more source

Numerical investigation of laminar flow in micro-tubes with designed surface roughness

, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Elsayed, AM, Mahmoud, S, Al-Dadah, RK, Mahrous, AF, 3rd Micro and Nano Flows Conference (MNF2011)   +4 more
core  

Effect of thermal treatment on microcracking characteristics of granite under tensile condition based on bonded-particle model and moment tensor

Scientific Reports
It is known that the heterogeneity caused by thermally induced micro-cracks and thermal stress can affect the mechanical behavior of granite. The laboratory-scale tests have the intrinsic limitation of non-repeatability and lack of effective methods to ...
Jinsheng Zhao, Wei Sun, Hao Luo, Shunchuan Wu, Zhiqiang Hou   +4 more
doaj   +1 more source

Evolution of shear bands into cracks in metallic glasses

, 2015
In the present work, the cracks formation and propagation behavior of a ductile Zr-based bulk metallic glass with single dominant shear band deformation was investigated.
Wang, Xinmin, Chang, Chuntao, Zhang, Guangliang, Zhao, Yuan-Yun, Estevez, Diana, Li, Run-Wei   +5 more
core  

A Conceptual Approach to Reduce the Product Gas Crossover in Alkaline Electrolyzers

Membranes
The crossover of the product gases hydrogen and oxygen in alkaline electrolyzer operation is a critical factor, severely limiting the operational window in terms of current density and pressure.
Diogo Loureiro Martinho, Torsten Berning
doaj   +1 more source

Evaluation of dynamic behaviour of porous media including micro-cracks by ordinary state-based peridynamics [PDF]

, 2023
Reliable evaluation of mechanical response in a porous solid might be challenging without any simplified assumptions. Peridynamics (PD) perform very well on a medium including pores owing to its definition, which is valid for entire domain regardless of ...
Tanaka, S., El-Aassar, A., Nguyen, C.T., Amin, I., Ozdemir, M., Shawky, H., Oterkus, S., Oterkus, E.   +7 more
core  

Sensitivity analysis of the non-destructive evaluation of micro-cracks using GMR sensors

, 2014
Micro-cracks in a magnetized ferromagnetic material cause stray fields that can be observed using giant magnetoresistive (GMR) sensors. This work investigates the applicability of GMR sensors to the non-destructive evaluation of micro-cracks via the ...
Reimund, Verena, Haueisen, J., Pelkner, Matthias, Kreutzbruck, Marc   +3 more
core   +1 more source