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Online since: May 2021
Authors: O.A. Miryuk
The aim of the work is to study the influence of technological factors on silicate granules formation with a stable porous structure and a bulk density of no more than 300 kg/m3 from liquid glass compositions.
To improve technological properties of the molding mixture, sodium salts were introduced.
Expediency of using combined fillers, made up of materials, directly affecting technological properties of the compositions has been established.
Liu, Thermal conductivity and mechanical properties of porous concrete materials, Materials Letters. 209 (2017) 349 – 352
He, Effect of foaming agent on physical and mechanical properties of alkali-activated slag foamed concrete, Construction and Building Materials. 226 (2019) 280 − 287.
Online since: January 2013
Authors: Xiao Ning Feng
It firstly establishes the entity assembly model of internal gear pairs with precise tooth profile, then determines the number of multi-tooth meshing teeth pairs with finite element software and finally analyzes the main factors and reason affecting the number of meshing teeth pairs.
The main factors affecting the number of meshing teeth pairs are tooth number and tooth number difference.
Table 2 Number of Effective Meshing Teeth Pairs( =1) 39 49 59 69 79 89 99 124 149 174 199 40 50 60 70 80 90 100 125 150 175 200 Number of Effective Meshing Teeth Pairs 3 3 4 4 4 5 6 7 9 12 15 Table 3 Number of Effective Meshing Teeth Pairs (=5) 35 45 55 65 75 85 95 120 145 170 195 40 50 60 70 80 90 100 125 150 175 200 Number of Effective Meshing Teeth Pairs 3 3 3 3 4 4 5 6 8 9 11 Analysis of the main factors and reason affecting the number of meshing teeth pairs It can be seen from Table 2 ang Table 3 that the main factors affecting the number of meshing teeth pairs are tooth number and tooth number difference.
The main factors affecting the number of meshing teeth pairs are tooth number and tooth number difference.
China Mechanical Engineering.Vol.13(2002),p.1586 (in Chinese)
Online since: January 2010
Authors: S.H. Chen, H.L. Yi, Raul Manuel Esteves Sousa Fangueiro, Xin Ding
Several groups of experiments were carried out to investigate the effect of the specimen configuration and the loading speed on the tensile properties.
Mechanical properties in tension are very important to establish the material properties for structural design, installation and maintenance [1].
Since there isn't any standard for the multi-axial tensile testing, the factors, such as the configuration of the specimen and the loading speed, which might affect the testing results were investigated.
This shows that the mechanical properties in warp direction of the coated membrane materials play an important role in the tensile failure under multi-axial loads, whatever the initial crack length and the crack orientation is.
This emphasizes the importance of the tensile properties in warp direction when the coated membrane materials are suffering from multi-axial tensile loads.
Online since: March 2018
Authors: Dirk Landgrebe, Roland Müller, Karsten Richter, Franz Reuther
The last two factors are mainly influenced by the machine selection and the knowledge of factors influencing process deviations.
The elastic material behavior has already been named as one of material parameters affecting springback.
The observed mechanical properties are summarized in Fig. 1a.
This data set corresponds quite well with what can be expected due to the mechanical properties.
Different parameters, e.g. materials, orientation of the bending axis compared to the rolling direction and the chosen bending concept proved to be significant impact factors affecting the springback.
Online since: April 2007
Authors: Tatsuki Ohji, Rolf Janßen, Wen Hui Zhang, Zhi Hao Jin, Jian Feng Yang, Ji Qiang Gao, Shao Yun Shan
The samples with fine starting powder showed fine, high aspect ratio of β-Si3N4 grains and good mechanical properties.
Characterizations of the starting power, such as particle size, purity, compo- sition and so on, are the most important factors that affect microstructures of the sintered samples.
Mechanical Properties.
Porous Si3N4 ceramics showed very excellent mechanical properties (see Table 2).
This is probably attributed to the formation of fibrous microstructure, which contributes to the mechanical properties.
Online since: November 2020
Authors: Milan Uhríčik, Peter Palček, Mária Chalupová, Patrícia Hanusová
The choice of biomaterial for medical applications is established on mechanical properties.
Analysis of the prosthesis microstructure clarifies the material properties.
For this reason and other design factors, structural testing continues to be mandatory before a product is placed on the market [8].
The mechanical properties and microstructures of titanium alloys are strongly dependent on their processing history and heat treatment.
It is obvious that we need to keep an optimal microstructure regarding corrosion and mechanical properties, which can be controlled through processing parameters and be standardized in the near future.
Online since: August 2011
Authors: Takenobu Sakai, Tomohiko Gushiken, Tomoki Masuko, Satoshi Matsushima, Satoshi Kobayashi, Satoru Yoneyama, Jun Koyanagi, Carlos Rolando Ríos-Soberanis
Each individual component maintains its original characteristics while giving the composite distinctive chemical, mechanical and physical properties.
The inherent mechanical properties of the composite depend on the nature of each of the components, their relative quantities and their distribution.
Examination on the correlation between the filler volume fraction and the mechanical properties evaluated by tensile test, stress relaxation test and dynamic mechanical test are discussed.
Mechanical characterization by tensile test Mechanical properties behavior by tensile stress for active carbon-polypropylene composites are presented in fig. 2.
These shift factors are exhibited in fig. 6.
Online since: April 2013
Authors: Jen Ching Huang, Yi Chia Liao, Huail Siang Liu, Fu Jen Cheng
The Study on Deposition Process and Mechanical Properties of Deposited Cu Thin Films Using Molecular Dynamics Jen-Ching Huang 1, 2 a, Yi-Chia Liao3, Huail-Siang Liu3 and Fu-Jen Cheng4 1 Department of Mechanical Engineering, Tungnan University, Taiwan 2 Research Center for Micro/Nanotechnology, Tungnan University, Taiwan 3 Institute of Mechanical Engineering, Tungnan University, Taiwan 4 Department of Electrical Engineering, Tungnan University, Taiwan a jc-huang@mail.tnu.edu.tw Keywords: Deposition Process, Young's modulus, Surface roughness, Copper, Molecular dynamics.
This paper studies the deposition process and mechanical properties of Cu thin films deposited on single crystal copper substrates with various surface roughnesses by molecular dynamics (MD).
Therefore, the substrate temperature and the substrate surface roughness were changed to study the influence of process parameters on the mechanical property of deposited Cu thin films.
Therefore, the attraction between atoms is an important factor in thin film formation.
a) b) c) Fig. 6 Surface morphology of Cu film of various deposition atoms (a) 512 atoms (b) 1024 atoms (c) 1536 atoms Conclusions This paper study the nanoscale mechanical properties of Cu thin films deposited on single crystal copper substrates with various surface roughness by MD.
Online since: February 2011
Authors: Zhen Kai Wan, Yi Li, Jia Lu Li
FBG embedded in the 3D braided composite materials has not more effect mechanical property of materials.
In the internal structure of FBG into measurement, fiber grating is due to the effect of matrix and the yarn around, the actual measurement results will be affected by many factors.
(2) Experimental results show that the 3D braided composite material under tensile load with the internal strain and FBG change, have excellent sensing properties due to the FBG. .
(3) Implanted fiber to the mechanical properties of composite, so less influence on 3D braided composites state health monitoring provides a good basis.
REFERENCES [1] Wan Zhenkai .Acoustic emission analysis of the flexural and tensile properties of 3-D braided composite materials[J].Journal of Textile Research,2007,28(4):53-55
Online since: May 2014
Authors: Hong Mei Zhuang, Xiao Liang Miao, Zhi Qiang Zhao, Lei Zhang
In the regulation of the organic matrix, it can be directed self-assembly into specific biological minerals, and can give the bone good mechanical properties and biological activity.
They can provide mechanical and biological properties for the organization.
Literature shows that crystal structure of hydroxyapatite thin can ensure that the bone has strong and not brittle, hard and soft mechanical properties.
These are the main factors causing the sports injury.
Nano calcium phosphate can be synthesized with special structure and morphology in the future, make its surface can have special topology or physical and chemical properties, and can selectively adsorb biological protein or biological factors.
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