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Online since: May 2017
Authors: Vladimír Pribramsky, Michaela Kopálová
UHPC is a modern material with great characteristics and shows all important properties for efficient structural design and construction process.
Its excellent properties of this material make it ideal for usage as an effective and slender construction element with high load-bearing capacity [1].
This property leads to its affinity to water and excellent resistance to harsh environment, especially aggressive defrosting chemicals.
The walls withstand shear forces, without being affected by normal forces caused by prestressing in the top and bottom slab of the box cross-section.
Factors of critical load are calculated for the three cases of UHPC web shape which are designed to have the same weight.
Online since: March 2013
Authors: Xiao Guang Yuan, Lin Yang, Xiao Ping Lin, Bing Xue Mi, Lin Lv, Hong Jun Huang
As a result, the annealing temperature is the primary factor which affects the formation of the intermetallic phases of the cold rolling Cu/Al clad metal sheet, while the holding time is the second one.
In order to improve bonding strength and mechanical properties, copper/aluminum composite material needs heat treatment after cold rolling.
The heat treatment would not only lead to the interface diffusion, but also form interface diffusion layers and intermetallic phases[3] which has great influence on mechanical and electrical properties[4.5].
In conclusion, annealing temperature is the primary factor to the structure of the interfacial diffusion layers, while the holding time is ranked secondly.
Vaissiere, et al., Mechanical characterization of laser surface alloyed aluminium-copper systems.
Online since: September 2014
Authors: Ping Li, Ya Ting Huang, Bin Wang, Wen Feng Liu
Many factors affect the photocatalytic activity of TiO2, such as TiO2 crystal type, particle size and surface morphology.
The photocatalytic properties of anatase TiO2 can be explain by the available Energy band theory of semiconductor.
As the pavement structure is used by porous asphalt concrete, after a period of time, the pavement can still keep the photocatalytic properties with the portion of TiO2 in the pavement pore.
The active life of photocatalytic technology is the key factor.
Mechanochemical synthesis of fluorine doped SrTiO3 and its photo-oxidation properties[J].
Online since: July 2013
Authors: Chao Chen, De Qing Gan, Ya Bin Zhang, Hong Jian Lu
This decision-making process by the multiple correlations associated factors and control, is a typical multi-objective decision making.
Different mine have different decision-making goals, so that the dump program preferred is a more complex, ambiguous, there is an objective basis, there are subjective factors.
When , say the model mainly factors determine type comprehensive evaluation model, The model of the evaluation decision by numerical results the biggest factors, and the rest in a certain range of values change does not affect the final results.
When called a weighted average of the model, the model for all related factors weights according to size balanced consideration, show good overall properties.
D. in this study to one iron ore dump the stability of the safety check, and waste of the stone the physical and mechanical indexes take: C = 0.12 MPa, Φ = 20, and waste stone loose density for: r = 1.69 t/m3, the calculation results show that dump all is stable.
Online since: March 2024
Authors: Eric Schoensee, Anthony Jeyifous, Christoph Strangfeld, Alexander Mezhov, Götz Hüsken
Calculating Rheological Properties of Fresh Mortar for Additive Manufacturing Based on Experimental, Multi-Sensor Data E.
Although mortar properties vary only locally, a defect in one layer during printing could affect the entire integrity of the whole structure .
To achieve variations in rheological properties, water content was changed for each mixture.
To characterise material properties, additional experiments has been performed.
It can be expected, that the rheological properties of a fluid are varying with temperature [14].
Online since: November 2016
Authors: Teng Wan Dung, Anizah Kalam, Husna Elias, Noor Leha Abdul Rahman, Koay Mei Hyie
These variablesare the main factors to affect the optimum conversion of Si into SiC using wood as the precursor.
Sepúlveda,.Microstructure and fracture properties of biomorphic SiC, Int.
Michael Scheffler, Cellular Ceramics Structure, Manufacturing, Properties,. wiley-vch, 2005
Rodríguez-Reinoso,The role of carbon biotemplate density in mechanical properties of biomorphic SiC, J.
Childers, Processing , Microstructure , and Mechanical Properties of Interpenetrating Biomorphic Graphite / Copper Composites,Northwestern university, 2014.
Online since: August 2017
Authors: Poonsub Threepopnatkul, Darunee Aussawasathien, Kittipong Hrimchum, Kittimasak Ketkul
The effect of PLA:PBS ratio on properties of blend foams as well as the effect of AC on properties of composite foams were investigated such as foam morphology, density, void fraction, crystallinity, and thermal and mechanical properties.
Thermal analysis of foams Crystallinity is an important parameter affecting the foaming process.
Mechanical properties The mechanical properties of foam samples are shown in Figure 4.
Foam samples with no AC particles showed more uniform cell morphologies and higher mechanical properties in case of PLA-rich samples.
Li, Mechanical properties of PLA/PBS foamed composites reinforced by organophilic montmorillonite, Journal of Applied Polymer Science. 131 (2014) 40773-40780
Online since: October 2019
Authors: Rupinder Singh, Ilenia Farina, Narinder Singh, Ranvir Singh, J.S. Dureja
The Ni-Cr is most broadly utilized material for restorative and dental applications because of its astounding mechanical and biomedical (bioactivity and biocompatibility) properties.
The reported literature outlined that orientation and part density are the main factors that affect the surface finish, shore hardness and dimensional accuracy of FDM prototypes [38].
As observed from Fig. 3 particle clustering has been there, which may affect the properties like surface hardness, dimensional accuracy and surface finish.
Fraternali, Size effect and dynamic properties of 2D lattice materials, Compos.
Mechanical properties and durability of mortar containing fine fraction of demolition wastes produced by selective demolition in South Italy.
Online since: March 2015
Authors: Jun Jiang Xiong, Qun Le, Shi Qiu Li, Lei Tong
Benjamin M Cook[17] examined composite bonded scarf repairs by experimentally measuring and analytically predicting the residual curing strains and strains due to mechanical loading.
He provided some mechanical property values of IM6/3501-6 composite and FM300-05M adhesive, measured small specimen with moiré interferometry and big specimen with strain gage.
Scarf Repair Structure Finite Element Model Composite main board and patch were all [+45/0/-45/90]S IM6/3501-6 composite laminate, which material property was shown in Table 1; scarf slope was 1:20, adhesive layer thickness was 0.127 mm( as shown in Fig. 1), adhesive was FM300-05M, which mechanical property was elastic modulus E=1.134GPa, poisson’s ratio v=0.38, tensile strength S=29.8MPa.
In patch, stress in the place near upper end of adhesive layer is the largest, so here is the most possible place to be destroyed, place far from damaged hole in main board composite laminate has low stress level, hardly affected by damaged hole.
Study on the buckling of composite honeycomb plate with scarf repairs, Mechanical Science and Technology for Aerospace Engineering 31 (2012) 588-591
Online since: August 2006
Authors: Sergey N. Dub, M.L. Trunov, R.S. Shmegera
The photoinduced changes in static mechanical properties such as nanohardness and elastic (Young's) modulus have been determined.
Introduction Recently, the research activities have been focused on photo-induced modifications of mechanical properties of chalcogenide glasses.
Furthermore, it will be shown that opposite changes in local mechanical properties (Young's modulus and nanohardness) take place due to the band-gap light illumination.
The results show that at the initial stage of irradiation this ability decreases by a factor of 20 in comparison with a dark sample.
Dub, Mechanical Properties of Thin Films in Depth-Sensing Indentation, Thin Films in Optics and Electronics, Proc.
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