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Online since: April 2018
Authors: Pavel Srb, Martina Syrovátková, Petr Kulhavý, Blanka Tomková
This article deals with assessment of mechanical properties and possible technical usability of flax prepreg composite materials.
Mechanical properties of materials are the decisive factor for selection of their suitable industrial application.
The main step was to describe the process of acquiring basic mechanical properties of one layer.
Carbon, glass and aramid fibres have excellent mechanical, chemical and thermal properties and represent most commonly used fibre reinforcements.
Mechanical Tests The mechanical properties of flax fiber-reinforced composite were tested.
Mechanical properties of materials are the decisive factor for selection of their suitable industrial application.
The main step was to describe the process of acquiring basic mechanical properties of one layer.
Carbon, glass and aramid fibres have excellent mechanical, chemical and thermal properties and represent most commonly used fibre reinforcements.
Mechanical Tests The mechanical properties of flax fiber-reinforced composite were tested.
Online since: October 2014
Authors: Ji Chao Peng, Peng Lv, Song Lin Wang
A lot of factors would affect the ancient landslide stability and change its engineering geological conditions, such as the underground mining activity, the construction of industrial area and the increase of rainfall.
Internal factors The landslide is an ancient landslide which has a sliding surface.
Through sampling test and analysis, the mechanics properties of sliding surface is high natural moisture content, large natural void ratio, high compressibility, low shear strength characteristic.
This is the favorable factors for landslide decline.
As a result, it reduced the sliding surface resistance properties of rock and soil mass.
Internal factors The landslide is an ancient landslide which has a sliding surface.
Through sampling test and analysis, the mechanics properties of sliding surface is high natural moisture content, large natural void ratio, high compressibility, low shear strength characteristic.
This is the favorable factors for landslide decline.
As a result, it reduced the sliding surface resistance properties of rock and soil mass.
Online since: August 2013
Authors: Zheng Qi Zhang, Zhan Ding, Pei Long Li
The changes of asphalt properties with service time and depth variations of the pavement were discussed.
Among one of the environmental factors affecting low-temperature cracking is pavement age, and the older the pavement, the greater the incidence of thermal cracking1.
Therefore aging is a main factor affecting the durability of asphalt pavement2-4.
The mechanical properties of pavement structure with gradient modulus are different from those of pavement with constant modulus9.
In this paper, the finite element method was used to analyze the effect of gradient modulus to mechanical properties of asphalt pavement.
Among one of the environmental factors affecting low-temperature cracking is pavement age, and the older the pavement, the greater the incidence of thermal cracking1.
Therefore aging is a main factor affecting the durability of asphalt pavement2-4.
The mechanical properties of pavement structure with gradient modulus are different from those of pavement with constant modulus9.
In this paper, the finite element method was used to analyze the effect of gradient modulus to mechanical properties of asphalt pavement.
Online since: May 2015
Authors: Emil Spišák, Janka Majerníková, Emília Spišáková
These sheets differ mainly in the strength and plastic properties.
The mechanical properties of these steels are usually tuned by altering their microstructures, especially the martensite volume fraction, which features high strength but low ductility.
Results obtained from the uniaxial tensile test demonstrate the visible differences in the value of mechanical properties (Table 2).
(3) Depending up mechanical properties the experiment indicated that the value of the hv/a0 blanked edge surface quality index decrease with the value of the Re/Rm ratio increasing.
Bodke, Aan overview of factors affecting in blanking processes, Int.
The mechanical properties of these steels are usually tuned by altering their microstructures, especially the martensite volume fraction, which features high strength but low ductility.
Results obtained from the uniaxial tensile test demonstrate the visible differences in the value of mechanical properties (Table 2).
(3) Depending up mechanical properties the experiment indicated that the value of the hv/a0 blanked edge surface quality index decrease with the value of the Re/Rm ratio increasing.
Bodke, Aan overview of factors affecting in blanking processes, Int.
Online since: July 2014
Authors: Mohammad Bagher Limooei, Shabnam Hosseini
Heat treatment is the main process to obtain desired mechanical properties and microstructure in this steel.
Because of the excellent combination of these properties, this steel has been accepted as a very useful engineering material [1,2].
The factors that affect on heat treatment are austenitizing temperature, austenitizing time and quenching rate.
Table 2 shows these factors and their level.
[7] T.Sasaki, “Physical and Mechanical Properties of High Manganese Non-Magnetic Steel and its Application toVarious Products for Cammerical Use”, Transactions ISU, 1982, Vol. 22, pp.184-192
Because of the excellent combination of these properties, this steel has been accepted as a very useful engineering material [1,2].
The factors that affect on heat treatment are austenitizing temperature, austenitizing time and quenching rate.
Table 2 shows these factors and their level.
[7] T.Sasaki, “Physical and Mechanical Properties of High Manganese Non-Magnetic Steel and its Application toVarious Products for Cammerical Use”, Transactions ISU, 1982, Vol. 22, pp.184-192
Online since: November 2018
Authors: Getahun Aklilu, Sarp Adali, Glen Bright
Temperature Effect on Mechanical Properties of Carbon, Glass and Hybrid Polymer Composite Specimens
Getahun Aklilu1,a*, Sarp Adali1,b, Glen Bright1,c
1Discipline of Mechanical Engineering, University of KwaZulu-Natal, Durban, South Africa
a*getmechanical@gmail.com, b*adali @ukzn.ac.za, c*brightg@ukzn.ac.za
Keywords: FRP composite material, Short beam shear, Dynamic mechanical analysis, Mechanical properties, Temperature dependent properties.
Physical and mechanical properties of UD-glass, carbon fibre and epoxy resin [26].
Fig. 8 illustrates the results of, and damping factors of every series of specimens from 24 to 136ºC.
The mechanical properties of all composite specimens are degraded with increasing temperature.
Drzal, Fiber-Matrix Adhesion and Its Effect on Composite Mechanical Properties: I.
Physical and mechanical properties of UD-glass, carbon fibre and epoxy resin [26].
Fig. 8 illustrates the results of, and damping factors of every series of specimens from 24 to 136ºC.
The mechanical properties of all composite specimens are degraded with increasing temperature.
Drzal, Fiber-Matrix Adhesion and Its Effect on Composite Mechanical Properties: I.
Online since: July 2011
Authors: Hoon Cho, Do Hyang Kim, Sun Dae Kim
Despite the high strengthening potential of Al-Mg-Si alloys, processing factors such as the artificial aging processes, as well as the duration of artificial aging, can seriously impede the strengthening process.
It was to determine how aging process affected the microstructure and mechanical properties of the A6082 alloy as different ratio between Mg and Si.
It was to determine how Mg/Si atomic ratios affected the microstructure and mechanical properties of the A6082 alloy.
Furthermore, the effect of process parameters such as aging conditions affecting desired mechanical strength for automobile bumper was investigated.
The mechanical properties of A6082 alloy extruded bar were measured with ASTM B 557M – 07 specimen, respectively.
It was to determine how aging process affected the microstructure and mechanical properties of the A6082 alloy as different ratio between Mg and Si.
It was to determine how Mg/Si atomic ratios affected the microstructure and mechanical properties of the A6082 alloy.
Furthermore, the effect of process parameters such as aging conditions affecting desired mechanical strength for automobile bumper was investigated.
The mechanical properties of A6082 alloy extruded bar were measured with ASTM B 557M – 07 specimen, respectively.
Online since: November 2010
Authors: Xiao Min Guo, De Kui Niu, Shun Bao Lu, Wen Yuan Zhang
The mechanical properties of Ph.
The MPF was 10.1 KN, The internal structures of bamboo determined their mechanical properties, so the anatomy of bamboo could also affect the mechanical properties of bamboo.
Correlation of soil NPK and the mechanical properties of bamboo The correlation analysis between soil nutrients and mechanical showed the relation on between soil nutrient and mechanical properties of bamboo wood were not correlated significantly.
There was no significant difference of mechanical properties on soil NPK.
Test methods of bamboo physical and mechanical properties.
The MPF was 10.1 KN, The internal structures of bamboo determined their mechanical properties, so the anatomy of bamboo could also affect the mechanical properties of bamboo.
Correlation of soil NPK and the mechanical properties of bamboo The correlation analysis between soil nutrients and mechanical showed the relation on between soil nutrient and mechanical properties of bamboo wood were not correlated significantly.
There was no significant difference of mechanical properties on soil NPK.
Test methods of bamboo physical and mechanical properties.
Online since: May 2011
Authors: Quan Chen Gao, Huai Wen Zhang, Jun Liu, Nan Nan Zhang
Abstract Considering the various loads combination and durability,pile’s diameter,embedded depth,anchor’s rod, anchorage length need to be strengthened in the permanent supporting foundation engineering.Based on Chengdu Museum foundation project, the influencing factors such as pile’s diameter,embedded depth,anchor’s pretentioned force are discussed.With comparasion of calculated data and monitoring data, this paper generalized influence of pile diameter, embedded depth, anchor pretensioned force on permanent pars mechanics properties.
So, under such ‘enlarged stiffness’ conditions, mechanical properties and deformation law of the pile-anchor structure as well as the impact on surrounding environment need to be further studied.
Figure 1 Mechanics properties of revetment piles Figure 2 Ground calculated settlement curve Influencing factors Impact of pile’s diameter on mechanical behavior of pars.
Impact of pile’s embedded depth on mechanical behaviors of pars.
After ascertaining revetment piles diameter as 1200mm, designer studies the different embedded depth’s impact on mechanics properties of revetment piles.
So, under such ‘enlarged stiffness’ conditions, mechanical properties and deformation law of the pile-anchor structure as well as the impact on surrounding environment need to be further studied.
Figure 1 Mechanics properties of revetment piles Figure 2 Ground calculated settlement curve Influencing factors Impact of pile’s diameter on mechanical behavior of pars.
Impact of pile’s embedded depth on mechanical behaviors of pars.
After ascertaining revetment piles diameter as 1200mm, designer studies the different embedded depth’s impact on mechanics properties of revetment piles.
Online since: November 2011
Authors: Francesco Cardaropoli, Fabrizia Caiazzo, Vincenzo Sergi
Besides mechanical properties, the manufacturing process was also examined in order to evaluate its characteristics.
The laser system adopts a “dual focus” technology in order to reach a compromise in terms of the resolution of details, part density and relative mechanical properties.
Another factor, which might have modified powder properties, is oxidation.
The analysis of all these factors helps to determine the optimal processing window, guaranteeing sintering efficacy, with satisfactory mechanical properties and a low residual porosity, as well as good dimensional and shape tolerance.
Mechanical properties, surface roughness and parts accuracy have been evaluated for Direct Metal 20.
The laser system adopts a “dual focus” technology in order to reach a compromise in terms of the resolution of details, part density and relative mechanical properties.
Another factor, which might have modified powder properties, is oxidation.
The analysis of all these factors helps to determine the optimal processing window, guaranteeing sintering efficacy, with satisfactory mechanical properties and a low residual porosity, as well as good dimensional and shape tolerance.
Mechanical properties, surface roughness and parts accuracy have been evaluated for Direct Metal 20.