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Online since: November 2013
Authors: Cong Sheng Guan, Hua Xu, Hua Yong Zhang
Vinyl ester resin (VER) has excellent corrosion resistance, mechanical properties, and lower viscosity before curing.
The the electrical conductivity properties were tested.
The factors of EG content, the soaking time, rabbling intensity on the properties of the composite were investigated.
These factors on the mechanical property and other effecting factors will be discussed in the following articles.
Yin, Research on Properties of Poly (phenylene sulfide)/Graphite Composite Bipolar Plate, J.
The the electrical conductivity properties were tested.
The factors of EG content, the soaking time, rabbling intensity on the properties of the composite were investigated.
These factors on the mechanical property and other effecting factors will be discussed in the following articles.
Yin, Research on Properties of Poly (phenylene sulfide)/Graphite Composite Bipolar Plate, J.
Online since: August 2015
Authors: Heung Youl Kim, Bum Yean Cho, Seung Un Chae, Seung Cho Yang
In addition, rapid cooling/heating in welding process causes heat-affected zone to have totally different properties from its base metal.
Test overview 2.1 Experimental factor and level In order to identify the mechanical properties of weld zone when exposed to high temperatures, tension test was conducted with the factors and levels shown in table 1.
Table 3 shows the chemical composition and mechanical properties of the wire.
Figure 2 and table 4 show the mechanical properties of SS400 steel specimens at normal temperature and 600℃.
Mechanical properties of SS400 steel specimens Table 4.
Test overview 2.1 Experimental factor and level In order to identify the mechanical properties of weld zone when exposed to high temperatures, tension test was conducted with the factors and levels shown in table 1.
Table 3 shows the chemical composition and mechanical properties of the wire.
Figure 2 and table 4 show the mechanical properties of SS400 steel specimens at normal temperature and 600℃.
Mechanical properties of SS400 steel specimens Table 4.
Online since: July 2011
Authors: Xiao Yu Zhang, Yun Peng Zhang, Hua Wang
The results indicate that the weld bead with excellent mechanical properties can be obtained using the welding process parameter with the welding current of 210A, welding speed of 4 mm/s and the argon gas flow rate of 8~12 L/min.
Introduction Owing to a series of excellent characteristics and properties including high melting point, large elastic modulus, small thermal expansion coefficient, good thermal conductivity, strong corrosion resistance and good high-temperature mechanical properties, TZM alloy has been widely used in the aerospace fields such as the exhaust valve of torpedo engine, rocket nozzle, gas pipeline and nozzle insert.
In the paper, the weldability of the TMZ alloy, the proper welding method and the microstructure and the properties of the TMZ alloy were mainly discussed.
Performance Powder Metallurgy of TZM alloy sheet and its influencing factors.Powder Metallurgy Technology, Vol.8(1990).p.75~84 [3] Huichao Cheng,Jinglian Fan,Tao Liu etc.
Study on the Effects of Various Factors on the Ductility and Brittleness Properties of Molybdenum and Molybdenum Alloys.
Introduction Owing to a series of excellent characteristics and properties including high melting point, large elastic modulus, small thermal expansion coefficient, good thermal conductivity, strong corrosion resistance and good high-temperature mechanical properties, TZM alloy has been widely used in the aerospace fields such as the exhaust valve of torpedo engine, rocket nozzle, gas pipeline and nozzle insert.
In the paper, the weldability of the TMZ alloy, the proper welding method and the microstructure and the properties of the TMZ alloy were mainly discussed.
Performance Powder Metallurgy of TZM alloy sheet and its influencing factors.Powder Metallurgy Technology, Vol.8(1990).p.75~84 [3] Huichao Cheng,Jinglian Fan,Tao Liu etc.
Study on the Effects of Various Factors on the Ductility and Brittleness Properties of Molybdenum and Molybdenum Alloys.
Online since: February 2014
Authors: Madjid Meriem-Benziane, Nesar Merah, Sabah A. Abdul-Wahab, Benoauda Babaziane
The effects of the properties of the patch on the evolution of the stress intensity factor, according of angle crack tip, were discussed.
The adhesive properties were optimized to increase the performance of the repair of structures by such reinforcement.
The effects of the adhesive properties and patch thickness are highlighted.
Chemical compositions and tensile properties of the present API X65 and the material properties of the Pipeline, patch and adhesive are summarized in Tables 1 and 2, respectively, are: Table 1.
Mechanical properties of the API X65, used in the present study Pipeline (API X65) Young’s modulus = 207 GPa Poisson’s ratio = 0.30.
The adhesive properties were optimized to increase the performance of the repair of structures by such reinforcement.
The effects of the adhesive properties and patch thickness are highlighted.
Chemical compositions and tensile properties of the present API X65 and the material properties of the Pipeline, patch and adhesive are summarized in Tables 1 and 2, respectively, are: Table 1.
Mechanical properties of the API X65, used in the present study Pipeline (API X65) Young’s modulus = 207 GPa Poisson’s ratio = 0.30.
Online since: January 2014
Authors: Lin Zhi Cui, Gao Min Li, Yi Ting He, Zhan Yuan Zhu, Fei Luo
Introduction
The correct understanding of the dynamic mechanical behavior of different classification soil under the various influence factors is of great significance.
The literature [14] indicates that d and ep are approximately equal in value and their changing laws are quite the same with the change of various affecting factors.
How do frequency and confining pressure affect on k,a, d and S is different.
As figure 2 and figure 3 shows, the dynamic mechanical behavior of the frozen clay is affected greatly by the frequency and it is affected little by the confining pressure.
GB50269/T—97 Foundation dynamic properties test specification[S].
The literature [14] indicates that d and ep are approximately equal in value and their changing laws are quite the same with the change of various affecting factors.
How do frequency and confining pressure affect on k,a, d and S is different.
As figure 2 and figure 3 shows, the dynamic mechanical behavior of the frozen clay is affected greatly by the frequency and it is affected little by the confining pressure.
GB50269/T—97 Foundation dynamic properties test specification[S].
Online since: June 2014
Authors: Ming Li
Physical and mechanical properties of soft rock.
Expansion of soft rock refers to soft rock under physical, chemical, mechanical and other factors, the volume changes.
Soft rock disintegration is phenomenon of soft rock produced sheet disintegration under factors of physical, chemical, mechanical.
Three- above types of mechanical mechanism of soft rock deformation generalized main cause on deformation of expansive soft rock, the main factors which can affect the deformation of surrounding rock and support as follows.
Lithologic factors. strength of rock mass, structure, degree of cementation and The performance of cements, content of expanded minerals, which are internal factors affecting deformation of soft rock roadway.
Expansion of soft rock refers to soft rock under physical, chemical, mechanical and other factors, the volume changes.
Soft rock disintegration is phenomenon of soft rock produced sheet disintegration under factors of physical, chemical, mechanical.
Three- above types of mechanical mechanism of soft rock deformation generalized main cause on deformation of expansive soft rock, the main factors which can affect the deformation of surrounding rock and support as follows.
Lithologic factors. strength of rock mass, structure, degree of cementation and The performance of cements, content of expanded minerals, which are internal factors affecting deformation of soft rock roadway.
Online since: November 2011
Authors: Lian Sheng Chen, Ya Qiang Tian, Li Wei Duan, Ying Li Wei, Xue Dong Lei, Yue Hua Wang
Fig.1 Rolling by turns of two plate on stand-alone roller
Mechanical properties simulation and prediction of hot rolled plate.
Under the control of rolling theory, the change of austenite recrystallization in addition to affecting the metal microstructure and macroscopic properties, also the impact on the deformation resistance of the metal deformation and the load of equipment, so people pay more attention to these aspects.
In the simulation model of mechanical properties, its theoretical foundation is metal reinforcement theory.
From Table 1 and Table 2, it can be seen that the composition of the species, the ferrite grain size and mechanical properties at room temperature are basically consistent with the measured.
The system can control and forecast the austenite recrystallization, grain size, the mechanical properties in the process of the hot plate, and the result can be output in the form of a table or graphic.
Under the control of rolling theory, the change of austenite recrystallization in addition to affecting the metal microstructure and macroscopic properties, also the impact on the deformation resistance of the metal deformation and the load of equipment, so people pay more attention to these aspects.
In the simulation model of mechanical properties, its theoretical foundation is metal reinforcement theory.
From Table 1 and Table 2, it can be seen that the composition of the species, the ferrite grain size and mechanical properties at room temperature are basically consistent with the measured.
The system can control and forecast the austenite recrystallization, grain size, the mechanical properties in the process of the hot plate, and the result can be output in the form of a table or graphic.
Online since: September 2011
Authors: Prasad K.D.V. Yarlagadda, Maryam Shirmohammadi, P. Gudimetla, V. Kosse
Among mechanical characteristics of materials, toughness is one of the effective factors in material performance during loading.
There are several studies on mechanical properties of fruit tissue which determined properties for unpeeled and peeled (flesh) tissues.
Main environmental factors were: temperature () and humidity (20-55%).
Emadi, et al., "Mechanical properties of pumpkin," International Journal of Food Properties, vol. 8, pp. 277-287, 2005
Emadi, et al., "Mechanical properties of pumpkin," International Journal of Food Properties, vol. 8, pp. 277-287, 2005
There are several studies on mechanical properties of fruit tissue which determined properties for unpeeled and peeled (flesh) tissues.
Main environmental factors were: temperature () and humidity (20-55%).
Emadi, et al., "Mechanical properties of pumpkin," International Journal of Food Properties, vol. 8, pp. 277-287, 2005
Emadi, et al., "Mechanical properties of pumpkin," International Journal of Food Properties, vol. 8, pp. 277-287, 2005
Mechanical Properties of Chitosan Modified Montmorillonite Filled Tapioca Starch Nanocomposite Films
Online since: April 2013
Authors: Siti Waqina Abdul Ghani, Sani Amril Samsudin, Aznizam Abu Bakar
This study was carried out to develop renewable and degradable plastics film with good mechanical properties.
The unique properties of nanocomposites, not shared by conventional materials, include mechanical strength, thermal stability, fire retardant, and corrosion protection properties.
Mechanical properties involving tensile analysis of the nanocomposite films were investigated.
Incorporation of both of these hybrid fillers significantly affects the mechanical properties of TPS films.
Chitosan affects the tensile properties quite drastically even at low content ratio.
The unique properties of nanocomposites, not shared by conventional materials, include mechanical strength, thermal stability, fire retardant, and corrosion protection properties.
Mechanical properties involving tensile analysis of the nanocomposite films were investigated.
Incorporation of both of these hybrid fillers significantly affects the mechanical properties of TPS films.
Chitosan affects the tensile properties quite drastically even at low content ratio.
Online since: November 2012
Authors: Jun Bao Yu, Chao Gao, Le Le Wang, Tao Shen, Ding Yi Yang
In 1990s Japan, some European and American researchers on the basis of experimental and theoretical study of ordinary concrete, studied in-depth high strength, high-performance ceramisite concrete and achieved certain results, including the study of ceramisite concrete materials, configuration, production process, mechanical properties, and material properties and so on.
Testing methods: Many factors that affect the basic performance of ceramisite concrete, select the appropriate number of control factors.
Ceramisite concrete mixed with the right amount of Water-reducing can reduce the amount of cement to reduce the water-cement ratio, thus affecting the strength of ceramisite concrete.
(2) Water-cement ratio, sand ratio and Water-reducing admixture ratio are the important factors to affect the basic performance of ceramisite concrete.
Effect of expanded perlite aggregate on the properties of lightweight concrete.
Testing methods: Many factors that affect the basic performance of ceramisite concrete, select the appropriate number of control factors.
Ceramisite concrete mixed with the right amount of Water-reducing can reduce the amount of cement to reduce the water-cement ratio, thus affecting the strength of ceramisite concrete.
(2) Water-cement ratio, sand ratio and Water-reducing admixture ratio are the important factors to affect the basic performance of ceramisite concrete.
Effect of expanded perlite aggregate on the properties of lightweight concrete.