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Online since: February 2008
Authors: Jian Peng Wu, Jian Feng Huang, Li Yun Cao, Bin Zheng
The effects of MMA/MA volume ratio, initiator and fiber mass ratio on the mechanical properties of the composites were investigated.
Therefore, in order to improve the mechanical property of PMMA materials, Marei [4] used short glass fiber to reinforce the PMMA matrix and found that the glass fiber could improve the mechanical performance of PMMA to some extent.
The influence of processing factors on ZrO2(f)/PMMA-PMA composites were investigated.
In the experiment, the influence of different processing factors on ZrO2(f)/PMMA-PMA composites was primarily investigated.
The mechanical properties of composites not only depend on the characteristic of fiber and matrix, but also in relation to the combine intensity between fiber and matrix.
Online since: June 2008
Authors: Xiang Ling, Xi Hai Shen
The peculiarities of welding dissimilar materials are caused by differing physical, mechanical and physical-chemical properties, which determine their interaction with the new joining phase.
Many influence factors complicate the subject, damage and failure of welded joints is a very complex process.
Finite Element Analysis Material Properties.
Material choices are limited by their suitability for use in the lap welded joints by mechanical and physical properties.
The physical properties used in the simulation are shown in Table 3, which shows all the thermal and mechanical properties of borosilicate glass and Kovar alloy.
Online since: July 2015
Authors: Lung Tsai, Yan Cherng Lin, A Cheng Wang, Chun Ho Liu
Setting levels of the controlling factors are displayed in Table 2.
The signal to noise ratio (S/N ratio) by Taguchi method was obtained from this orthogonal chart to evaluate the important factors in the experiments.
For understanding the influence of controlling factors, each level of L18 chart was evaluated for the averaging analysis of the S/N ratio.
These amplified S/N ratio easily identifies the important priority of the controlling factors.
Although the controllable factors of rotational speed and abrasive mesh less affect the performance of MFGA in the study, they still to some extent affect the physical behaviors during finishing process.
Online since: October 2018
Authors: Victoria A. Gurieva, Aleksandr V. Doroshin
The results obtained by the method of mathematical planning of the experiment made it possible to develop a model of ceramic bricks of the racial composition, to construct empirical dependencies in the system «technogenic product-technological factor-property» and to establish the influence of the addition of fuel slag on the basic physical and mechanical properties of wall ceramics: strength, density, water absorption , shrinkage.
Durability is determined by the combination of physical and mechanical properties of building materials used for the erection of objects.
This raw material has certain properties that affect the quality of products.
In the course of the experiment, standard methods for studying raw materials, analyzing the structure and properties of raw materials were applied.
At the same time, the use of fuel slags allowed to obtain new knowledge about their influence on the structure formation of ceramic bricks and the physical and mechanical properties.
Online since: June 2011
Authors: Xiu Ting Wei, Li Peng Zhang, Jie Chen Mu
Research on Properties of Ca-Co-O Thermoelectric Material with Adding Sm MU Jie-chen1,a, WEI Xiu-ting1,b and ZHANG Li-peng2,c* 1 School of Mechanical Engineering, Shandong University of Technology, Zibo, China, 2 Wan Jie Group CO.LTD, Zibo, China 255091 amujiechen@sdut.edu.cn,bwjbh2011@163.com, c*lpzhang2007@163.com Key words: Ca3-xSmxCo4O9; sol-gel; microstructure; thermoelectric properties.
The microstructure and thermoelectric properties of ceramics were researched.
The thermoelectric properties of Ca3-xSmxCo4O ceramics were excellent.
The additive affect microstructure of materials [7].
The thermoelectric properties of Ca3-xSmxCo4O9 ceramics were excellent.
Online since: September 2007
Authors: Wei Shen Zhu, Wei Min Yang, Xiao Jing Li
The key to numerical analysis is to determine the dependence relations between the relative displacement of the key point (marked with a circle, Fig. 1) on right walls of power house and the selected affecting factors.
Only surrounding rocks of homogeneous character are analysed in this paper, but their deformation and strength properties are considered according to their solidity extent using four major rock types; and the effects of different overburden depths and lateral coefficients of geo-stress are also taken into account.
And then, we conduct the sensitivity analysis of the 4 factors on the stability of surrounding rock.
The λ and h are the less sensitive factors.
Conduct sensitive analysis of four factors selected in this paper, the most sensitive factor to the displacement of KP is E, the second is H; λ and h is less sensitive comparatively.
Online since: February 2011
Authors: Zhuan Wei, De Jian Zhao, Guang Jun Hua
The aspect ratio is one of the important factors that impact the corrugated box compression strength.
The compression strength of boxes is affected by many factors, such as the quality of corrugated cardboard, the type, height, perimeter and aspect ratio of corrugated box, the size, shape and location of vent/hand hole, etc.
Many scholars had taken varies technical means to study these factors’ effect on the compression strength.
And then compare and analysis the testing and calculation results [7]. 3 Experiment 3.1 Testing of mechanical properties of base paper and corrugated board The ring crush strength of outer liner and inner liner is 9.67N/cm, the middle liner is 4.47N/cm, and the medium is 3.29N/cm.
[4] LIU Bo, Finite Element Analysis of Mechanical Properties of Corrugated Paperboard.
Online since: March 2021
Authors: Kashinath N. Patil, Vilas Gulabrao Dhore, Walmik S. Rathod
The mechanical properties of CNT reinforced composites are governed by factors like dispersion in the matrix, interfacial bonding and chemical stability between CNT and matrix. [7][8].
The mechanical and tribological properties of Al-CNT composites attributed to the uniform dispersion of CNTs in the matrix, the quantity and quality of CNTs used and the method of fabrication of composites[14].
Another factor affecting the coefficient of friction would be the hardness of the composite samples.
The self-lubricating property of MWCNT and improved hardness with increased MWCNTs were the contributing factors for the significant improvement in tribological properties.
Song, ‘Mechanical properties and microstructures of carbon nanotube-reinforced Al matrix composite fabricated by in situ chemical vapor deposition’, vol. 487, pp. 258–262, 2009
Online since: December 2012
Authors: Rui Ma, Chang Jing Sun
Analyzed the main factors affecting machining precision of three jaw self-centring chuck with plane thread.
Plane thread processing errors directly affect the integrated centring accuracy of the three-jaw chuck, thereby affecting the machining accuracy [3].
The instrument is composed by two parts of the mechanical drive and electrical control.
The measurement procedures can take advantage of the method of undetermined coefficients, by means of the coefficient assignment, change the block properties, with the loop segment to be used again, these undetermined coefficients are read in from outside the program, can also be assigned a value in the program [16].
[13] Shigang Wang: Journal of Mechanical Science And Technology, Vol. 24.
Online since: January 2005
Authors: Gang Chen, Zhen Hua Chen, Jie Teng, Hong Ge Yan
In the present investigation, the 7075Al/SiCp and A356/SiCp composite rings and LF6 Al alloy ring were produced by this technique and the influences of process parameters on the microstructure and mechanical properties were studied.
In general, there are numerous factors that influence the droplet size distribution and further affect the microstructures and mechanical properties of the preforms, include the atomizer geometry, the diameter of the metal stream, the melt superheat, the liquid flow rate, the atomization gas pressure, the gas velocity, the gas flow rate, the spray height, the scanning frequency of atomizer and etc.
Microstructure and Properties.
The mechanical properties of the as-sprayed composites are shown in Table 2.
Summary A new spray deposition technology was developed and the experimental results showed that this novel spray deposition technology is promising and viable for the preparation of metal rings with excellent mechanical properties.
Showing 7181 to 7190 of 26166 items