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Online since: December 2013
Authors: Syahrom Ardiyansyah, Muhamad Noor Harun, A.M.S. Putra
However, both cost and time can be one of the constraints factors, particularly in the early stage of design or analysis.
Introduction Aseptic loosening of joint replacement is becoming a crucial factor of TAR failures and revision.
The metal parts, tibial and talar components were assigned with Cobalt-Chromium (CoCr) material properties with titanium sprayed coating on articulating surfaces.
The wear factor used was through all simulations is 2.64E-07mm3/Nm [17].
The use of the ligamentous structure on the previous study indeed affected the contact pressure distribution, where by in this present study, the ligamentous structure was excluded to replicate the model of ankle wear simulator [4].
Online since: April 2014
Authors: Li Mei Zhou, Yue Jie Dong
What is more, the reaction is sensitive to many factors interacting each other, such as kind and consumption of solvents, ratio of reagents, stirring rate, reaction time, pH of the reaction solution and reaction temperature.
The influence of the reaction temperature on the morphology, structure and optical properties of Cd1-xZnxS thin films were studied.
Conclusions Influence of the reaction temperature on the growth process and properties of Cd1-xZnxS thin films were investigated.
The effect of Zn concentration on the optical properties of Cd1-xZnxS films for solar cell applications, J.
Structural and optical properties of Cd0.8Zn0.2S thin films, J.
Online since: August 2014
Authors: Wei Min Ye, Wo Ye Liu, Cui Juan Gao, De Yong Zhao, Yong Fen Xie, Chen Chen Yu
Introduction Pareto chart was named as first used by Italian economist Vilfredo Pareto in the statistical work of the community property distribution [1].
For each category of data items, the existing Pareto think its weight is the same, so its occupancy and the cumulative occupancy can be directly calculated with Eq.(1) and Eq. (2), however, it must be noted that in many cases identifying "critical" and "non-critical" factors only on frequence and occupancy of defects / problems is unreasonable.
Specific ideas are as follows: (1) Analysis the nonconformity situation of each product, and collect nonconforming degree (quality nonconforming membership) () on each factor of products; (2) Determine the threshold ().
The team found main defects affecting the quality of the welding surface, which are undercut(), overlap(), pits(), incomplete fusion(), incomplete penetration(), slag(), porosity() and crack().Therefore, in order to ensure the welding quality, the lean six sigma team needs to consider how to determine the main defective items that affect the surface welding quality.
As for defects , , , , , the nonconforming membership can be calculated directly by property assessment according to the fuzzy quality standards by the Eq. (3).
Online since: February 2014
Authors: Mohamad Hafiz Mamat, Mohd Hanafiah Abidin, Nik Noor Hafizah Nik Mohammad, Che Mohd Som Said, Mohamad Rusop
The different amounts of TiO2 particles in the composite affect the structural properties of the composite samples where the cracks of the films morphology also increases as TiO2 amount in PMMA increased.
Based on the previous study, the good dispersion of TiO2 filler in the PMMA will contribute to the increase in the thermal and mechanical properties of the composite sample [11, 12].
It is believe that the well dispersion of TiO2 in PMMA can contribute to the increase the properties of the composite.
Skafidas, "Permittivity properties of thermally treated TiO2," Materials Letters, vol. 58, pp. 1502– 1507, 2004
Rusop,, "The Effect of Self-prepared TiO2 Amount in the Milling Process on the Structural Properties of Anatase TiO2 Nanopowder," Jurnal Teknologi, vol. 59, pp. 41–45, 2012
Online since: September 2013
Authors: T.V.V.L.N. Rao, Mokhtar Awang, Mohd Rizal Lias
There are many factors influence misalignment between meshing of gears.
One major describes these factors as over press fitting when the gear is mounted onto the shaft as an interference hub fit.
Significant analysis in gear strength properties will follow with the achievements in computational design, simulation of meshing, and tooth contact analysis [7].
In actual condition, most of the component assemblies fitting, e.g. shaft of gear, driven to slave gears, etc. will affect to the misalignment error due to tolerance, transmission, machining, assembly errors and others parameter related [10].
Babalik, "Dynamic Analysis of Involute Spur Gears With Asymmetric Teeth," International Journal of Mechanical Sciences, vol. 50, pp. 1598-1610, December 2008
Online since: June 2010
Authors: A.M. Butt, Syed Waheed-ul-Haq
Table 5 represents the properties of uni-directional composite of continuous S-Glass Fiber/Epoxy plies with 60% Fiber Volume Ratio [1] and Table 6 shows Tsai-Wu failure criterion parameter used for selection of safe design.
Table 5 Material input parameter Material Properties ρ [g/cm 3] E1 [GPa] E2 [GPa] G12 [GPa] G23 [GPa] ν12 Value 2.1 55 16 7.6 5 0.28 Following properties for the above selected material were used for the Tsai-Wu failure criterion.
Table 6 Properties for Tsai-Wu failure criterion Material Properties ��1�� [MPa] ��1�� [MPa] ��2�� [MPa] ��2�� [MPa] ��12�� [MPa] Value 1620 690 40 140 60 c.
Wind angle variation over dome The above properties were used to model a transversely isotropic composite in a commercial package ANSYS.
The shell was modeled as a symmetric, balanced angle ply laminate with the average laminate properties (average of both positive and negative angled plies) for each layer.
Online since: April 2007
Authors: Xiao Le Cheng, Min Tan, Guo Shang Zhang, Jian Dong Xing, Yi Min Gao, Xiao Hui Zhi
The experiment results of impact wear tests show that under the condition of low and middling loads, the composites display the best wear-resistant properties, moreover, the more TiC content is, the better wear-resistance property is.
The wettability between the ceramic phase and metal phase directly affects the interfacial bonding strength of the particle reinforced metal matrix composite.
The wettability between TiC particle and Hadfield steel is relatively poor, so studying the factors influencing the interfacial wettability of TiC/ Hadfield steel is significant for the preparation and improvement of the composite working performance.
Moreover, Mo and TiC can take place solid solution reaction, the reaction equation is as follows: TiC + x Mo → (Ti1-x Mox)C + x Ti Influence of Ni to the properties of the composite The dissolvability of TiC in steel is only 0.5% in mass fraction [4].
In this article, 2wt% Ni is added to improve the dissolvability of TiC in steel, to accelerate the sintering process, and to increase the synthetically properties of the composite specimens.
Online since: December 2010
Authors: Huai Yun Zhang, Guo Ying Zhou, He Li, Wen Jin Liu, Ya Di Liu
In these four factors, the greatest impact on the removal of lignin is temperature, followed by is degumming time, then the concentration of alkali, and the bath ratio is the smallest.
It can be obtained from R value: RC>RB>RA>RD,so in the four factors, the greatest impact on the removal of lignin is temperature, followed by is degumming time, then the concentration of alkali, and the smallest is the bath ratio.
The mechanical force plays an important role in the whole process of fiber extraction.
In these four factors, the greatest impact on the removal of lignin is temperature, followed by is degumming time, then the concentration of alkali, and the smallest is the bath ratio.
The Effects of a Silane Coupling Agent on Curing Characteristics and Mechanical Properties of Bamboo Fibre Filled Natural Rubber Composites [J].
Online since: March 2017
Authors: Ping Kai Jiang, Jia Wei Wu, Rong Rong Qi, Xin Yu Ji, Xiang Yang Wu, Xin Wei Wang, Ping Wang
As many factors of fillers have effects on the thermal conductivity of the composites, such as type, content, particle size, particle distribution, it is necessary to choose suitable fillers.
Figure 3 shows the mechanical properties of GR/CF/PP composites.
Furthermore, the mechanical and thermal properties of composites were also tested. 1.
A review on the mechanical and electrical properties of graphite and modified graphite reinforced polymer composites[J].
Electrically and thermally conductive polyethylene/graphite composites and their mechanical properties[J].
Online since: February 2018
Authors: You Fa Wang, Xian Ya Xue, Rui Min Zhao
The swelling behavior, mechanical property, degradation behavior and cell adhesion ability of samples were also studied.
To solve these problems, chemical crosslinking and incorporating bioactive ceramic phases are being used to improve the physical, mechanical properties, as well as degradation rates of composites[11, 12].
To improve the mechanical property of hyaluroan, β-tricalcium phosphate (TCP) was used as enhancer.
Mechanical Properties.
Results and Discussion The morphology plays an important role on scaffold’s mechanical and biological property.
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