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Online since: April 2014
Authors: Jin Xi Ding, Yun Wei Meng
Engineering properties of red clay
Red clay has poor physical properties such as high void ratio, high water content, high liquid plastic limit and plasticity index, but it has good mechanical properties such as high strength, low compressibility.
Thus, as the areas of red clay are different, there are changes in its strength, deformation properties; main influencing factors are also different.
The existence of fractures, and natural factors and the function of the water, will inevitably affect the long-term strength and stability of the embankment.
The mechanical properties of red clay under different stress paths [J].
Properties of red clay filler [J].
Thus, as the areas of red clay are different, there are changes in its strength, deformation properties; main influencing factors are also different.
The existence of fractures, and natural factors and the function of the water, will inevitably affect the long-term strength and stability of the embankment.
The mechanical properties of red clay under different stress paths [J].
Properties of red clay filler [J].
Online since: February 2020
Authors: Marek Jašek, Filip Khestl, Barbora Hrubá, Jiří Teslík, Petr Kurečka
The trend of modern civil engineering involves buildings and structures with precisely defined properties and parameters.
The basic properties of fibres are indicated in Table 2.
The measurement was not influenced by any external factors, such as direct sunshine affecting the heat flow meter, air movement in the room caused by ventilation or air conditioning, movement of persons near the cooling box, heating of the room, etc.
These factors would then significantly affect the heat flow value, which has a substantial influence on the resultant value of the thermal conductivity coefficient of the material measured.
The experimental research of textile fibres implies that the textile fibres feature very good thermal insulating properties.
The basic properties of fibres are indicated in Table 2.
The measurement was not influenced by any external factors, such as direct sunshine affecting the heat flow meter, air movement in the room caused by ventilation or air conditioning, movement of persons near the cooling box, heating of the room, etc.
These factors would then significantly affect the heat flow value, which has a substantial influence on the resultant value of the thermal conductivity coefficient of the material measured.
The experimental research of textile fibres implies that the textile fibres feature very good thermal insulating properties.
Online since: November 2009
Authors: Ke Han
This could affect the mechanical properties.
Engineering Mechanical Properties by Optimization of Microctructure.
One of the most important factors affecting the microstructure as well as mechanical properties is the transformation heat treatment parameters.
Engineering Mechanical Properties by Optimization of Chemistry.
Therefore, the mechanical properties are highly anisotropic.
Engineering Mechanical Properties by Optimization of Microctructure.
One of the most important factors affecting the microstructure as well as mechanical properties is the transformation heat treatment parameters.
Engineering Mechanical Properties by Optimization of Chemistry.
Therefore, the mechanical properties are highly anisotropic.
Online since: March 2007
Authors: C.M. Sellars, Maysam F. Abbod, D.A. Linkens, M. Mahfouf
Evolutionary Computing for Metals Properties Modelling
1,aM.F.
This paper is concerned with generating mathematical models for hybrid models that have been developed for modelling metals properties under hot deformation conditions.
Material Properties Modeling One method for investigating of metal properties is the hybrid modelling technique which provides a good computational tool via combining different modelling approaches in one dynamic model [4].
One of the important factors that affect the final properties of the metals is the level of impurities.
The developed model can be used by both the research community and industry as it provides the internal states as well as the final metals properties.
This paper is concerned with generating mathematical models for hybrid models that have been developed for modelling metals properties under hot deformation conditions.
Material Properties Modeling One method for investigating of metal properties is the hybrid modelling technique which provides a good computational tool via combining different modelling approaches in one dynamic model [4].
One of the important factors that affect the final properties of the metals is the level of impurities.
The developed model can be used by both the research community and industry as it provides the internal states as well as the final metals properties.
Online since: January 2014
Authors: Janka Majerníková, Emil Spišák
The objective is to determine basic mechanical properties of galvanized multiphase steel sheets with a thickness of 0.75, 0.80 and 0.85 mm by a single-axis tensile test, determine the effect of the punch-die gap on plastic phase depth [hv] expressed as the relation of hv to a0, and, finally, determine the effect of material properties of blanked sheet metal on blanked edge quality expressed as the relation of hv to a0.
Table 1 Chemical composition of experimental materials [%] Material C Mn P S Ti Si Al Cr Cu Ni M 0.004 0.415 0.042 0.004 0.037 0.1 0.035 0.031 0.011 0.017 T 0.204 1.683 0.018 0.003 0.009 0.2 1.73 0.055 0.028 0.018 Y, Z 0.02 0.25 0.02 0.02 0.3 Samples were taken for a tensile test to determine mechanical properties of the material under zero-, 45-, and 90-degree angle in relation to the direction of rolling.
Measured and calculated values of mechanical properties of experimental materials are shown in Table 2.
Therefore, its magnitude, regularity and stability become very important factors as the tool wears.
The experiment showed that, in the case of the tested sheet thicknesses, mechanical properties (yield strength, tensile strength, their ratio, and elongation) have no apparent effect on blanked edge quality, evaluated through the relation of hv to a0.
Table 1 Chemical composition of experimental materials [%] Material C Mn P S Ti Si Al Cr Cu Ni M 0.004 0.415 0.042 0.004 0.037 0.1 0.035 0.031 0.011 0.017 T 0.204 1.683 0.018 0.003 0.009 0.2 1.73 0.055 0.028 0.018 Y, Z 0.02 0.25 0.02 0.02 0.3 Samples were taken for a tensile test to determine mechanical properties of the material under zero-, 45-, and 90-degree angle in relation to the direction of rolling.
Measured and calculated values of mechanical properties of experimental materials are shown in Table 2.
Therefore, its magnitude, regularity and stability become very important factors as the tool wears.
The experiment showed that, in the case of the tested sheet thicknesses, mechanical properties (yield strength, tensile strength, their ratio, and elongation) have no apparent effect on blanked edge quality, evaluated through the relation of hv to a0.
Online since: October 2011
Authors: Zhen Yu Qiu, An Hong Bao, Peng Wang
We propose the use of carbon fiber plate attached to the beam bottom, which makes finite element analysis of the mechanical properties of debonding concrete beams more reasonable.
Introduction Debonding is one of the most common factors affecting the capacity for RC beams strengthened with CFRP sheets [1] [2].
Currently, researchers pay little attention to finite element analyses on debonding and there is no doubt that experiment with solid models takes a primary role in this area because the mechanical standard judging whether debonding occurs or not has not been established.
In order to do finite element analyses, a mechanical standard (debonding theory) should be proposed.
Introduction Debonding is one of the most common factors affecting the capacity for RC beams strengthened with CFRP sheets [1] [2].
Currently, researchers pay little attention to finite element analyses on debonding and there is no doubt that experiment with solid models takes a primary role in this area because the mechanical standard judging whether debonding occurs or not has not been established.
In order to do finite element analyses, a mechanical standard (debonding theory) should be proposed.
Online since: September 2013
Authors: Prabhat Kumar, R.G. Rangasamy
Intergranular stress corrosion cracking and hot cracking are additional factors to be addressed for the welding of stainless steel components.
Intergranular stress corrosion cracking and hot cracking are additional factors to be addressed for the welding of stainless steel components.
Table 1 Chemical and mechanical properties of 316LN & 304 LN materials Chemical composition (by % of weight) Mechanical Properties: Element Grade 316LN Grade 304 LN Sl.
The identification mark was placed in such a way that it does not affect the function or quality of the item being identified.
NDE calibration blocks produced for evaluation of welds are to be preserved and supplied along-with the item QA during fabrication Welding Tolerances: The design of weldments shall lead to minimum stress concentration factors and high degree of reliability.
Intergranular stress corrosion cracking and hot cracking are additional factors to be addressed for the welding of stainless steel components.
Table 1 Chemical and mechanical properties of 316LN & 304 LN materials Chemical composition (by % of weight) Mechanical Properties: Element Grade 316LN Grade 304 LN Sl.
The identification mark was placed in such a way that it does not affect the function or quality of the item being identified.
NDE calibration blocks produced for evaluation of welds are to be preserved and supplied along-with the item QA during fabrication Welding Tolerances: The design of weldments shall lead to minimum stress concentration factors and high degree of reliability.
Online since: August 2014
Authors: De Hua Miao, Xuejiao Cao
Taking into account the pressure drop, seismic forces and other security factors, Load in horizontal filtering tank calculated in accordance with 1100kN.
Taking all factors to consider, the length of the elliptic filter plate`s minor axis is 1257mm.
The polynomial fitting about the length of the elliptic filter plate`s minor axis and the maximum stress as follows Figure 7 Graph of input and output variables Conclusion In this paper, horizontal filtering tank using finite element analysis software for the structural strength analysis, optimization of the key structural parameters, the following conclusions: 1.Informed by Spearman, Pearson product-moment correlation coefficient, the key factors affecting the horizontal filtering tank is the length of elliptic filtering plate`s minor axis.
Beijing: Mechanical Industry Press, 201
Mechanical Design 2007 (3) :29-33
Taking all factors to consider, the length of the elliptic filter plate`s minor axis is 1257mm.
The polynomial fitting about the length of the elliptic filter plate`s minor axis and the maximum stress as follows Figure 7 Graph of input and output variables Conclusion In this paper, horizontal filtering tank using finite element analysis software for the structural strength analysis, optimization of the key structural parameters, the following conclusions: 1.Informed by Spearman, Pearson product-moment correlation coefficient, the key factors affecting the horizontal filtering tank is the length of elliptic filtering plate`s minor axis.
Beijing: Mechanical Industry Press, 201
Mechanical Design 2007 (3) :29-33
Online since: August 2011
Authors: Hiroshi Sugimori, Noritaka Kawasegi, Noboru Morita, Min Chao Xue
These results indicate that oxidation is an important factor in determining the texture effect for machining aluminum alloy.
Introduction The addition of a texture to a solid surface enables control of the tribological, optical, and mechanical properties of the surface [1].
A surface texture results in a low-friction surface due to the generation of hydrodynamic pressure, storage of lubricant, and other factors [2].
These results indicated that the atmosphere around the cutting region was an important factor in determining the texture effect, and the presence of oxygen affected the machinability of the textured tool.
These results indicate that the atmosphere affects the frictional characteristics.
Introduction The addition of a texture to a solid surface enables control of the tribological, optical, and mechanical properties of the surface [1].
A surface texture results in a low-friction surface due to the generation of hydrodynamic pressure, storage of lubricant, and other factors [2].
These results indicated that the atmosphere around the cutting region was an important factor in determining the texture effect, and the presence of oxygen affected the machinability of the textured tool.
These results indicate that the atmosphere affects the frictional characteristics.
Online since: July 2017
Authors: Rudolf Kawalla, Markus Preiß, Sergey Guk
These results suggested that microstructural inhomogeneity in the used marking parameters due to their locally very limited formation did not have an appreciable influence on the mechanical properties.
The mechanical properties of the investigated steels perpendicular to the rolling direction are shown in Table 1.
Furthermore, for the characterization of the mechanical properties in the laser treatment zone, only microhardness measurements HV0.1 were performed according to ISO 6705-1 at the hardness tester ZHV1.
Fig. 3 shows that no changes of mechanical properties were detected in the direct vicinity of the tracks.
External factors, such as sample geometry or stress condition does not affect the critical damage criterion.
The mechanical properties of the investigated steels perpendicular to the rolling direction are shown in Table 1.
Furthermore, for the characterization of the mechanical properties in the laser treatment zone, only microhardness measurements HV0.1 were performed according to ISO 6705-1 at the hardness tester ZHV1.
Fig. 3 shows that no changes of mechanical properties were detected in the direct vicinity of the tracks.
External factors, such as sample geometry or stress condition does not affect the critical damage criterion.