Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: July 2012
Authors: Rui Ping Zhang, Jin Ming Dai, Wen Sheng Hou, Mei Niu, Peng Wei Xiang, Li Bin Gao
Moreover, the mechanical properties and antibacterial properties were measured.
Preparation of antibacterial function PET fibers.The 350dtex/24f*2 of Ag/MWNTs/PET antibacterial function fibers(the ensuing chapters are abbreviated as:antibacterial function PET) were prepared by melt blending spinning-draft one-step method.The spinning speed was 1000m/min.The process as shown in Figure 1.The Ag/MWNTs content in antibacterial function fibers is an important factor affecting the spinnability, mechanical properties and antibacterial properties.If the content of Ag/MWNTs is too low ,it will affect the antimicrobial properties of antibacterial fiber,if the content of Ag/MWNTs is too high, it will cause that the fiber spinning become poor and the mechanical properties decrease.The PET functional masterbatch with 3.0%(wt) content of Ag/MWNTs were selected as spinning masterbatch, Ag/MWNTs/PET antibacterial function fibers (sample A,B and C) were prepared,according to the quality of Ag/MWNTs content(0.2%,0.5% and 1.0%) in the PET-based body,to explore how the content
Mechanical properties of the antibacterial function fibers.The mechanical properties of the samples were tested by the YG (B) 021 semi-automatic tensile instrument.
Table 2 The rheological properties and spinnability of the antibacterial function PET polymer with different Ag/MWNTs content.
Fig.2 The mechanical properties curves of antibacterial functional PET fibers with different content of Ag/MWNTs.
Preparation of antibacterial function PET fibers.The 350dtex/24f*2 of Ag/MWNTs/PET antibacterial function fibers(the ensuing chapters are abbreviated as:antibacterial function PET) were prepared by melt blending spinning-draft one-step method.The spinning speed was 1000m/min.The process as shown in Figure 1.The Ag/MWNTs content in antibacterial function fibers is an important factor affecting the spinnability, mechanical properties and antibacterial properties.If the content of Ag/MWNTs is too low ,it will affect the antimicrobial properties of antibacterial fiber,if the content of Ag/MWNTs is too high, it will cause that the fiber spinning become poor and the mechanical properties decrease.The PET functional masterbatch with 3.0%(wt) content of Ag/MWNTs were selected as spinning masterbatch, Ag/MWNTs/PET antibacterial function fibers (sample A,B and C) were prepared,according to the quality of Ag/MWNTs content(0.2%,0.5% and 1.0%) in the PET-based body,to explore how the content
Mechanical properties of the antibacterial function fibers.The mechanical properties of the samples were tested by the YG (B) 021 semi-automatic tensile instrument.
Table 2 The rheological properties and spinnability of the antibacterial function PET polymer with different Ag/MWNTs content.
Fig.2 The mechanical properties curves of antibacterial functional PET fibers with different content of Ag/MWNTs.
Online since: April 2014
Authors: Lin Ma
Physical map of plane strain experiments
The factors influencing soil mechanical properties are mainly moisture content and confining pressure.
Comparative analysis of soil mechanical parameters under different factors Moisture content occupies the dominant position on factors affecting the soil strength.
(1) Moisture content is the most sensitive factor affecting soil strength, confining pressure is the second; (2) The soil strength under plane strain stress state is significantly greater than the conventional triaxial stress state.
Report on an apparatus for consummate investigation of the mechanical properties of soils[A].In: proceedings of the 1st ICSMFE[C].
Some fundamental properties of sand[A].
Comparative analysis of soil mechanical parameters under different factors Moisture content occupies the dominant position on factors affecting the soil strength.
(1) Moisture content is the most sensitive factor affecting soil strength, confining pressure is the second; (2) The soil strength under plane strain stress state is significantly greater than the conventional triaxial stress state.
Report on an apparatus for consummate investigation of the mechanical properties of soils[A].In: proceedings of the 1st ICSMFE[C].
Some fundamental properties of sand[A].
Online since: December 2014
Authors: Jin Chuan Gu, Chen Li Wang, Li Fang Bao, Rui Wang, Sheng Zhong, Chun Mei Wei
The results demonstrate that with the extension of temperature and treatment time, the adsorption properties of modified activated carbon were then decreased overall trend.
Lagergren adsorption rate equation with primary and secondary adsorption rate equation and the average absolute deviation from the rate on the adsorption properties of these factors affects the processing; secondary adsorption kinetics model was found to better describe the various factors affecting the adsorption process under conditions.
Li Yue, LiXiangzhou [6], respectively, with nitric acid, sulfuric acid and nitric acid plus copper acetate solution for surface modification of activated carbon were measured their surface chemical properties, studied the adsorption properties of modified activated carbon for Cr(VI) in the affected.
Granular activated carbon (see Table 1 below properties), citric acid, iodine, 95% ethanol, sodium hydroxide, potassium permanganate, K2Cr207 stock solution and nitrate.
Thus, the secondary adsorption kinetics model can better describe the adsorption process under conditions of various factors.
Lagergren adsorption rate equation with primary and secondary adsorption rate equation and the average absolute deviation from the rate on the adsorption properties of these factors affects the processing; secondary adsorption kinetics model was found to better describe the various factors affecting the adsorption process under conditions.
Li Yue, LiXiangzhou [6], respectively, with nitric acid, sulfuric acid and nitric acid plus copper acetate solution for surface modification of activated carbon were measured their surface chemical properties, studied the adsorption properties of modified activated carbon for Cr(VI) in the affected.
Granular activated carbon (see Table 1 below properties), citric acid, iodine, 95% ethanol, sodium hydroxide, potassium permanganate, K2Cr207 stock solution and nitrate.
Thus, the secondary adsorption kinetics model can better describe the adsorption process under conditions of various factors.
Online since: August 2011
Authors: Jun Shimizu, Li Bo Zhou, Hirotaka Ojima, Sumio Kamiya, Yuki Mikami, Yoshiaki Tashiro
This paper studies the influence of the wheel manufacturing process on the wheel physical properties.
A full factorial DOE (3-factors, 2-levels) was run to investigate the effects of the main factors.
Effects of main factors on bending strength Fig. 4.
Comparing to results shown in Fig. 3, it was again that additives (X2) stood out as the most significant factor but affecting the motor current opposite to the elastic modulus.
Effects of main factors on wear rate Fig. 7.
A full factorial DOE (3-factors, 2-levels) was run to investigate the effects of the main factors.
Effects of main factors on bending strength Fig. 4.
Comparing to results shown in Fig. 3, it was again that additives (X2) stood out as the most significant factor but affecting the motor current opposite to the elastic modulus.
Effects of main factors on wear rate Fig. 7.
Online since: July 2014
Authors: Yi Dan Huang, Jian Wang, Ling Kan Yao
Influence of Density on Mechanical Properties for Coarse-grained soil Based on Percolation Theory
Yidan HUANG1, a, Lingkan YAO1,b , Jian Wang1,c
1School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
ahuangyidan@home.swjtu.edu.cn, byaolk@home.swjtu.edu.cn, ccrest01@qq.com
Keywords: percolation; coarse-grained soil; renormalization group; density
Abstract.
Hence, the properties of the three components as well as their proportion and interaction determine the physical and mechanical property of the soil.
In this sense, pc also becomes an indicator for reflecting the soil mechanical property.
The average mechanical property index of sandy soil Type Void ratio e Internal friction degree φ (degree) Modulus of deformation E0 (MPa) Coarse sand 0.4~0.5 42 46 0.5~0.6 40 40 0.6~0.7 38 33 Medium sand 0.4~0.5 40 46 0.5~0.6 38 40 0.6~0.7 35 33 Fine sand 0.4~0.5 38 37 0.5~0.6 36 28 0.6~0.7 32 24 Silt 0.5~0.6 36 14 0.6~0.7 34 12 0.7~0.8 28 10 There are many other factors affecting the soil mechanical property.
As for cohesiveless soil, the influence of density on mechanical property is large.
Hence, the properties of the three components as well as their proportion and interaction determine the physical and mechanical property of the soil.
In this sense, pc also becomes an indicator for reflecting the soil mechanical property.
The average mechanical property index of sandy soil Type Void ratio e Internal friction degree φ (degree) Modulus of deformation E0 (MPa) Coarse sand 0.4~0.5 42 46 0.5~0.6 40 40 0.6~0.7 38 33 Medium sand 0.4~0.5 40 46 0.5~0.6 38 40 0.6~0.7 35 33 Fine sand 0.4~0.5 38 37 0.5~0.6 36 28 0.6~0.7 32 24 Silt 0.5~0.6 36 14 0.6~0.7 34 12 0.7~0.8 28 10 There are many other factors affecting the soil mechanical property.
As for cohesiveless soil, the influence of density on mechanical property is large.
Online since: August 2014
Authors: Ming Der Jean, Shuang Hchuan Chen, Chyuan Du Liu, Shu Chuan Su, Shuen Chou Chen, Wen Tung Wu, San Jen Lee
Eight control factors based on L18 arrays were conducted and the wear-resistant properties of coatings were evaluated in the experiments.
Due to its feasibility and better mechanical properties, plasma-sprayed coatings are a popular and efficient method of forming thermal barrier coatings.
Much work has been carried out on mechanical properties of plasma sprayed coatings, including structures, bonding strength, as well as heat and wear resistance.
The Effects of Affecting Factors.
The most important factors identified by the S/N ratios and variance analysis affecting the process robustness are the factors such as travel speed, spray stand-off distance, powder feeder rate, and primary gas for the wear volume losses, respectively.
Due to its feasibility and better mechanical properties, plasma-sprayed coatings are a popular and efficient method of forming thermal barrier coatings.
Much work has been carried out on mechanical properties of plasma sprayed coatings, including structures, bonding strength, as well as heat and wear resistance.
The Effects of Affecting Factors.
The most important factors identified by the S/N ratios and variance analysis affecting the process robustness are the factors such as travel speed, spray stand-off distance, powder feeder rate, and primary gas for the wear volume losses, respectively.
Online since: September 2013
Authors: Yin Xia
Influenced by the special historical factors, China's economy started relatively late, with a low machinery manufacture capacity.
Mechanical properties of metal.
The test of mechanical properties of metals.
For the machinery manufacture and production, there are two major factors affecting the quality of mechanical products, respectively the selection and processing of metal and other materials.
Through the analysis we know that factors affecting the quality of mechanical products mainly include selection and process technology of metal materials.
Mechanical properties of metal.
The test of mechanical properties of metals.
For the machinery manufacture and production, there are two major factors affecting the quality of mechanical products, respectively the selection and processing of metal and other materials.
Through the analysis we know that factors affecting the quality of mechanical products mainly include selection and process technology of metal materials.
Online since: April 2019
Authors: Xu Cheng, Sun Fei
A Study on the Effect of the Temperature on Mechanical Properties of H90 Copper Strip
Sun Fei1,2,a, Xu Cheng1,b *
1School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing 210094
2First Research Institute of the Ministry of Public Security of PRC, Beijing 100048
a13910823492@163.com, bxucheng62@163.com
Keywords: High temperature; tests; copper strip; mechanical properties
Abstract.
During the movement of bullet in the barrel, the bullet shell always contacts with the rifling of the barrel and bears the effect of high temperature[2,3,4], and the high temperature environment has an effect on the material properties of the H90 copper strip of the bullet shell, and it is still unknown whether the change in material properties affects the movement posture of the bullet out of the muzzle[1].
Therefore, it is needed to understand the mechanical properties of H90 copper strip under different temperatures.
Empirical Models of Effect of Temperature on Mechanical Properties of Material Based on the tests, this paper fitted the yield strength, tensile strength and elastic modulus with temperature of H90 copper strip material and obtained its empirical model
[8] Shuai Cao, Cheng Xu, Experimental on Influence of Temperature on Mechanical Properties of Barrel in Material 30SiMn2MoVA.
During the movement of bullet in the barrel, the bullet shell always contacts with the rifling of the barrel and bears the effect of high temperature[2,3,4], and the high temperature environment has an effect on the material properties of the H90 copper strip of the bullet shell, and it is still unknown whether the change in material properties affects the movement posture of the bullet out of the muzzle[1].
Therefore, it is needed to understand the mechanical properties of H90 copper strip under different temperatures.
Empirical Models of Effect of Temperature on Mechanical Properties of Material Based on the tests, this paper fitted the yield strength, tensile strength and elastic modulus with temperature of H90 copper strip material and obtained its empirical model
[8] Shuai Cao, Cheng Xu, Experimental on Influence of Temperature on Mechanical Properties of Barrel in Material 30SiMn2MoVA.
Online since: March 2019
Authors: Jadambaa Temuujin, Gendenjamts Oyun-Erdene
This paper is focused on the elucidation of mechanical activation effect of circulating fluidized bed combustion fly ash (Amgalan Thermal Station, Mongolia) on mechanical properties of geopolymers.
The aim of the present research is to explore the mechanical activation of fluidized bed fly ash (CFA) on the mechanical properties of geopolymers.
The composition and physical properties of geopolymers.
[8] E.I.Diaz, E.N.Allouche, S.Eklund, Factors affecting the suitability of fly ash as source material for geopolymers, Fuel, 89 (2010) 992-996
[13] S.Kumar, R.Kumar, Mechanical activation of fly ash: Effect on reaction, structure and properties of resulting geopolymer, Ceram.Int. 37 (2011) 533-541
The aim of the present research is to explore the mechanical activation of fluidized bed fly ash (CFA) on the mechanical properties of geopolymers.
The composition and physical properties of geopolymers.
[8] E.I.Diaz, E.N.Allouche, S.Eklund, Factors affecting the suitability of fly ash as source material for geopolymers, Fuel, 89 (2010) 992-996
[13] S.Kumar, R.Kumar, Mechanical activation of fly ash: Effect on reaction, structure and properties of resulting geopolymer, Ceram.Int. 37 (2011) 533-541
Online since: March 2013
Authors: Li Li Zhao, Lv Ming Yang, Tie Tao Zhou
The quantitative relationship between mechanical properties and microstructure was studied by statistical methods.
The results indicate that pouring temperature is the main element to affect the mechanical properties of permanent mold casting A356 and the optimum pouring process parameter is about 744 ℃ .Mechanical properties have a liner relationship with secondary dendrite arm spacing in a certain extent.
Results and discussion Mechanical properties of tensile samples.
The technology research of A356 alloy on mechanical properties.
Effect of pre/post T6 heat treatment on the mechanical properties of laser welded SSM cast A356 alloy [J].
The results indicate that pouring temperature is the main element to affect the mechanical properties of permanent mold casting A356 and the optimum pouring process parameter is about 744 ℃ .Mechanical properties have a liner relationship with secondary dendrite arm spacing in a certain extent.
Results and discussion Mechanical properties of tensile samples.
The technology research of A356 alloy on mechanical properties.
Effect of pre/post T6 heat treatment on the mechanical properties of laser welded SSM cast A356 alloy [J].