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Online since: August 2017
Authors: Winita Punyodom, Wanich Limwanich, Sawarot Phetsuk, Puttinan Meepowpan, Nawee Kungwan
The thermal, mechanical and degradation properties of these polymers are strongly depended on their crystallinity [7-9].
Tsuji and Ikada [7] reported that the properties of neat PLL membrane depended on the crystallinity.
From these previous reports, it is clearly seen that the study of crystallization is necessary for understanding the factors that affect the properties of the design materials.
Ikada, Properties and morphologies of poly(l-lactide): 1.
Ruth, The effect of crystallinity on the deformation mechanism and bulk mechanical properties of PLLA, Biomaterials 26 (2005) 5771-5782
Online since: March 2013
Authors: Saiful Amri Mazlan, Izwan Ismail, Syarifah Nur Aqida, A.G. Olabi
From the previous researches, the stress resistance was affected by particle size distribution, carrier fluid viscosity, volume fraction, gap size, supplied current and compressive speed [1,4].
Three factors in the design of experiment (DOE) were bidisperse ratio, particle volume fraction and carrier fluid viscosity at two levels, which resulted in eight experiments.
Table 1 shows the attributes of the DOE, actual level of each parameter and details of samples properties for each sample.
Design : 2 level factorial Runs : 8 Design Model : 3FI Factor Name Low Actual High Actual Mean Std.
Table 3 shows a variance analysis of maximum stress using 2-factor interaction (2FI) model.
Online since: January 2013
Authors: Jian Wei Yue, Li Hua Gu, Yong Feng Wang
And further, independent sealing pores, high mechanical strength of pore wall, pore structure approximate to sphere and pore diameter with similar and small size were all favorable factors for higher strength of foam concrete.
This test will be in accordance with the above these problems, through the test research to reduce exterior insulation with foam concrete plate density at the same time, improve the compressive mechanical properties such as tensile strength of the effective methods, and on this basis to discuss the influence of the bubble pore structure, for this new type of inorganic heat preservation material, the popularization and application of the lay the foundation.
Because chemical foaming has huge advantage in strength , water absorption properties and low density, the method of chemical foaming is selected in test andf foaming agent is hydrogen peroxide.
Experimental study on the effect of fly ash on the mechanical and thermal properties of chemical foaming foam concrete
Various factors affect the composition of the cell wall and cell type affect the foam concrete strength.
Online since: July 2011
Authors: Feng Lin Han, Feng Xiong, Rui Bo He
They focused on the effects of the following factors on the FBAM: belt transport speed, angle between rollers, dimension of rollers, geometric and material characters of belt[12].
These defects were the random factors of the measurement.
Actually this property can be proved theoretically.
This property was also proved theoretically.
Toya: Effect of belt transport speed and other factors on belt mistracking, Microsyst.
Online since: July 2011
Authors: Wan Chang Sun
As a new carbon material, carbon nanotubes have excellent mechanical properties and special tubular structure, CNTs can be used as a reinforce body to improve the hardness and tribological performance.
However, as the development of modern technologies (magnetic, ultrasonic, laser, pulse, etc.), some properties of the coating can not meet these demand.
Successful co-deposition and properties of electroless composite coatings are dependent on various factors including particles size and their concentration in the bath, etc.
They posses exceptional mechanical, electrical and thermal properties, together with a high geometrical aspect ratio (ratio between length and diameter)[9].
Summary As a new carbon material, carbon nanotubes have excellent mechanical properties and special tubular structure, CNTs can be used as a reinforce body to improve the hardness and tribological performance.
Online since: March 2014
Authors: Janis Locs, Diana Bajare, Girts Bumanis
The physical properties of AAMs were measured in accordance with EN 1097.
Results and Discussion Properties of Fresh and Hardened AAMs.
The mechanical properties of tested AAMs improved significantly by increasing the ratio of activator’s concentration.
These results show that the mechanical properties of AAMs increase with time and structure development continues up to 28 days, which is similar to conventional cement based materials.
The development of more compact and denser microstructure explains the increase of mechanical properties and decrease of water absorption.
Online since: December 2016
Authors: Dong Ye He, Xuan Tao Zheng, Jiu Hui Li, Gao Liang Ding
In aluminum alloy sheet metal forming process, annealing treatment can improve the mechanical properties.
It can be concluded that 500°C is the optimal temperature for mechanical properties.
Fig. 3 Mechanical properties predicted by ordinary regression models.
Fig. 4 Mechanical properties of 6016 aluminum at 500°C.
The BHF is a key factor of affecting the whole process of deep drawing which should be systemically investigated.
Online since: September 2011
Authors: Jian Liang Yu, Ling Chen, Xing Qing Yan
Factors of the critical rupture kinetic energy Er were acquired.
Material is AISI1018 with properties in Table 1.
Material properties are shown in Table 1.
Factors of Critical Rupture Kinetic Energy Er.
A number of factors affect critical rupture kinetic energy Er.
Online since: September 2015
Authors: Mohan Kumar Pradhan, Ajay Verma, Gurjeet Singh
Then, the product will be used for testing on the effective factors in warpage problem by applying the experimental design of Taguchi method.From the results, it shows that the most effective factor on the warpage is melt temperature.
The Taguchi method is used to perform screening experiments to identify the important significant process parameters affecting quality of lenses.Through empirical and theoretical analysis, the most significant process parameters affecting surfacewaviness is the melt temperature, followed by mold temperature, injection pressure and packing pressure.
The optimal PIM process parameters is determined with the application of computer aided engineering integrating with the Taguchi method to improve the compressive property of the valve body.
In the analysis they consider 4 factor and 3 level and apply taguchi method for find out optimum setting of process parameters.
Fig 3.5 SN ratio response diagram of the six factors From the graph we see that packing pressure and cooling time most affect the post moulding shrinkage.
Online since: May 2012
Authors: Peng Fei Li, Tao Guo, Zhong Yang Liu
Through the analysis and calculation to determine the stability coefficient and the parameters related to changes in the relationship between, find out the effect on the stability of the most sensitive factors.
Introduction Landslide, as a kind of natural disaster, every year to the world brings the huge loss of life and property.
Directly affect the landslide stability factors exist some uncertainty (such as C, such as variability).
Through the analysis and calculation to determine the stability coefficient and the parameters related to changes in the relationship between, find out the effect on the stability of the most sensitive factors, will contribute to the stability analysis of landslide research.
ANSYS can well simulate the mechanical properties of rock and soil, including fault, sandwich, joint, fractures and folds and other geological condition simulation.
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