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Online since: December 2014
Authors: Jarmila Oravcova
The clamping jaw design methodology developed summarizes complex factors.
These factors affect the clamping jaws design for the workpiece.
Input factors the process affect method of clamping and also the quality of the machined product.
This stage involves an analysis of the workpiece in the fixture and examines the factors affecting the accuracy of the workpiece in it.
The mechanical properties of the material are elastic modulus E=2,105 MPa, Poisson's ratio ν = 0,3, yield strength Re = 210MPa, the tangential modulus ET=2,104 MPa.
These factors affect the clamping jaws design for the workpiece.
Input factors the process affect method of clamping and also the quality of the machined product.
This stage involves an analysis of the workpiece in the fixture and examines the factors affecting the accuracy of the workpiece in it.
The mechanical properties of the material are elastic modulus E=2,105 MPa, Poisson's ratio ν = 0,3, yield strength Re = 210MPa, the tangential modulus ET=2,104 MPa.
Online since: July 2020
Authors: Xiao Wei Fan, Xu Guo Huai
However, the wear of the material is a systematic behavior, there are many factors that affect wear behavior, such as the organization of the material, hardness and ambient temperature, external load, and so on.
Where the external load is one of the important factors affecting the wear of the material [10].
Results and Discussion Tribological properties.
Schipper, Effect of microstructure on the tribological and mechanical properties of CuO-doped 3Y-TZP ceramics, J.
Montagnac, Tribological properties of Mo-S-I nanowires as additive in oil, Tribol.
Where the external load is one of the important factors affecting the wear of the material [10].
Results and Discussion Tribological properties.
Schipper, Effect of microstructure on the tribological and mechanical properties of CuO-doped 3Y-TZP ceramics, J.
Montagnac, Tribological properties of Mo-S-I nanowires as additive in oil, Tribol.
Experimental Study of Deformation Characteristic and Application on External Prestressed Wooden Beam
Online since: October 2012
Authors: Hong Bo Dong, Ji Mei Zhang, Jing Long Pan
In addition to it, the paper also analyzes the factors which affect stiffness of wooden beam.
a.Setting drawing b.Sectional view c.Support diagram Fig.3 Schematic diagram of test setup Results and Discussion Test result of mechanical performances of wood Test of wood characteristics includes: modulus of elasticity, bending strength, water ratio.
(3)Presreessed forcedepends on upward camber of presreessed wooden beam and strength of steel bars.The former is advised not to exceed,which can not affect the regular service.The latter should ensure total stress of presreessed wooden beam under the design load dose not exceed the strength of steel
(4)Main factors affecting the stiffiness of prestressed rebar are extensional rigidity of steel.
(In Chinese) [5] Testing Methods for Physical and Mechanical Properties of Wood(GB 1927-1943-91) the State Bureau of Technical Supervision, (1992) pp. 35-40(In Chinese) [6] Gongchen Du: Modern Prestressed Concrete Structure (Construction Industry Press, China 1988), pp.322-334(In Chinese)
a.Setting drawing b.Sectional view c.Support diagram Fig.3 Schematic diagram of test setup Results and Discussion Test result of mechanical performances of wood Test of wood characteristics includes: modulus of elasticity, bending strength, water ratio.
(3)Presreessed forcedepends on upward camber of presreessed wooden beam and strength of steel bars.The former is advised not to exceed,which can not affect the regular service.The latter should ensure total stress of presreessed wooden beam under the design load dose not exceed the strength of steel
(4)Main factors affecting the stiffiness of prestressed rebar are extensional rigidity of steel.
(In Chinese) [5] Testing Methods for Physical and Mechanical Properties of Wood(GB 1927-1943-91) the State Bureau of Technical Supervision, (1992) pp. 35-40(In Chinese) [6] Gongchen Du: Modern Prestressed Concrete Structure (Construction Industry Press, China 1988), pp.322-334(In Chinese)
Online since: August 2011
Authors: Bo Zhou, Zhi Yuan Wei, Yu Jun Liu
In addition, the factors affecting residual stress distributions was discussed, which include the cutting velocity, opening dimension, and constraint conditions.
The material of metal plate is mild steel for shipbuilding with the yield strength of 235Mpa at normal temperature, and the material properties such as thermal conductivity, specific heat, elastic modulus, Possion’s ratio, and thermal expansion coefficient are temperature dependent, which referred to the literatures [11].
FE model of oxygen cutting (mechanical analysis).
Two aspects of factors can contribute the discrepancies: one comes from the numerical model proposed, which contain the material properties at high temperature, the influence of phase change on residual stress fields, and the effect of partial material melting; the other comes from the errors caused by human factors in experimental measurement, which contain the quality of specimen surface grinding and strain-gages pasting, and the initial residual stresses caused by grinding.
In addition, it was discussed for the factors affecting residual stresses distribution, which contain cutting velocity, opening dimensions, and constraint conditions.
The material of metal plate is mild steel for shipbuilding with the yield strength of 235Mpa at normal temperature, and the material properties such as thermal conductivity, specific heat, elastic modulus, Possion’s ratio, and thermal expansion coefficient are temperature dependent, which referred to the literatures [11].
FE model of oxygen cutting (mechanical analysis).
Two aspects of factors can contribute the discrepancies: one comes from the numerical model proposed, which contain the material properties at high temperature, the influence of phase change on residual stress fields, and the effect of partial material melting; the other comes from the errors caused by human factors in experimental measurement, which contain the quality of specimen surface grinding and strain-gages pasting, and the initial residual stresses caused by grinding.
In addition, it was discussed for the factors affecting residual stresses distribution, which contain cutting velocity, opening dimensions, and constraint conditions.
Online since: October 2011
Authors: Jiang Feng Gong, Wei Hua Zhu, Kai Xiao Zhang, Chang Yong Lan, Bo Zhang
ZnO Nanostructures and Field Emission Properties on Cu Substrate Achieved by Electrodeposition Method
Jiangfeng.
Field emission investigation indicated that the nanoflowers exhibited good emission properties.
However, Au atom may substitute Zn atom during the growth process, which will affect its physical properties significantly.
Field emission properties of ZnO nanoflowers were carefully studied.
Field emission properties of the nanflowers were studied in detail.
Field emission investigation indicated that the nanoflowers exhibited good emission properties.
However, Au atom may substitute Zn atom during the growth process, which will affect its physical properties significantly.
Field emission properties of ZnO nanoflowers were carefully studied.
Field emission properties of the nanflowers were studied in detail.
Online since: August 2013
Authors: Xiao Cong He
The recent development in FEA of FSW process is described with particular reference to three major factors that influence the performance of FSW joints: modeling technique, tool design and process parameters.
Consequently, the properties of FSW have been the subject of a considerable amount of experimental and numerical studies.
The effect of the different tool configurations and sizes, and welding parameters on mechanical properties of the joints was analysed in detail.
The effect of process parameters on temperature distribution and mechanical properties of aluminium alloy AA2014 FSW joined was investigated by Rajamanickam et al. [37].
However, accurate and reliable FEA is still a difficult task as the mechanical behaviour of these joints is not only influenced by the geometric characteristics of the joints but also by different factors and their combinations.
Consequently, the properties of FSW have been the subject of a considerable amount of experimental and numerical studies.
The effect of the different tool configurations and sizes, and welding parameters on mechanical properties of the joints was analysed in detail.
The effect of process parameters on temperature distribution and mechanical properties of aluminium alloy AA2014 FSW joined was investigated by Rajamanickam et al. [37].
However, accurate and reliable FEA is still a difficult task as the mechanical behaviour of these joints is not only influenced by the geometric characteristics of the joints but also by different factors and their combinations.
Online since: February 2011
Authors: Qiang Song
Effects of magnetic concentrator on MFL signals using FEA
Qiang Song
College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing, China
songqiang@cup.edu.cn
Keywords: finite element analysis, magnetic flux leakage, concentrator, non-destructive testing
Abstract.
However, there are a variety of factors that can affect the MFL inspection tool’s ability to detect and characterize anomalies.
There are a variety of factors that can affect the MFL inspection tool’s ability to detect and characterize anomalies.
They include, but are not limited to defect geometry, MFL apparatus itself, magnetic properties and test parameters such as velocity and stress.
However, there are a variety of factors that can affect the MFL inspection tool’s ability to detect and characterize anomalies.
There are a variety of factors that can affect the MFL inspection tool’s ability to detect and characterize anomalies.
They include, but are not limited to defect geometry, MFL apparatus itself, magnetic properties and test parameters such as velocity and stress.
Online since: January 2012
Authors: Hiroshi Numakura, Daisuke Terada, T. Akaki, H. Morimoto, Nobuhiro Tsuji
Those materials with ultra-fine microstructures often exhibit unique mechanical properties, such as extremely high strength together with fairly good ductility [4].
While most studies made so far focus on microstructure and mechanical properties, our aim is to characterize the defects responsible for the interesting behaviour and to examine the thermal stability of the defects and the microstructure, which have not yet been clearly understood.
They are not significantly affected by heating up to 200°C; the general features in the subsequent cooling-run are similar to those in the heating run, except for some decrease in intensity.
Kimura, Mechanical properties of ultra fine grained steels, J.
Schulz, Properties and interactions of atomic defects in metals and alloys - bcc metals, in: H.
While most studies made so far focus on microstructure and mechanical properties, our aim is to characterize the defects responsible for the interesting behaviour and to examine the thermal stability of the defects and the microstructure, which have not yet been clearly understood.
They are not significantly affected by heating up to 200°C; the general features in the subsequent cooling-run are similar to those in the heating run, except for some decrease in intensity.
Kimura, Mechanical properties of ultra fine grained steels, J.
Schulz, Properties and interactions of atomic defects in metals and alloys - bcc metals, in: H.
Online since: May 2014
Authors: Claire L. Davis, Martin Strangwood, Trevor A. Dean, Christopher J. Watson
This poses several material and processing challenges to ensure that the components have metallurgical stability and the required mechanical properties in the high temperature environment.
Severe plastic deformation is used to promote recrystallisation in order to refine the grain size and improve strength and toughness properties.
The arduous conditions of mechanical, thermal and corrosive loading lead to several materials and processing challenges where mechanical properties and metallurgical stability must be maintained in a service environment where temperatures are increasing.
Recrystallisation processes are affected by temperature, strain, strain rate and local composition, so that it is necessary to be able to identify regions where recrystallisation is complete, partial or not occurring through a forging so that regions of spatially varying structures and properties can be identified.
Scharning, Axisymmetric Compression Test and Hot Working Properties of Alloys, Mater Sci Tech-Lond. 17(8) (2001) 995-1004
Severe plastic deformation is used to promote recrystallisation in order to refine the grain size and improve strength and toughness properties.
The arduous conditions of mechanical, thermal and corrosive loading lead to several materials and processing challenges where mechanical properties and metallurgical stability must be maintained in a service environment where temperatures are increasing.
Recrystallisation processes are affected by temperature, strain, strain rate and local composition, so that it is necessary to be able to identify regions where recrystallisation is complete, partial or not occurring through a forging so that regions of spatially varying structures and properties can be identified.
Scharning, Axisymmetric Compression Test and Hot Working Properties of Alloys, Mater Sci Tech-Lond. 17(8) (2001) 995-1004
Online since: August 2011
Authors: Yeong Sant Kuo
The porosity content of A201 aluminum alloy was affected by the local solidification time in this study.
All the factors will be discussed in this study to find out the influence on the porosity content.
Berry, “A Re-examination of Factors Affecting porosity Gradients in Unidirectionally Solidified Samples,” AFS Transactions, vol.116, (2008) pp.157-168, [6] F.M.
Kuo, "Mechanical Properties and Porosity Content of A201 Aluminum Alloy Castings in Different Cooling Rate Sand Molds", Advanced Materials Research , Vols. 154-155, (2011) pp.787-793, [8] C.Y.
Berry, “Effects of solidification Conditions on Mechanical Behavior of Al Cast Alloys,” AFS Trans.
All the factors will be discussed in this study to find out the influence on the porosity content.
Berry, “A Re-examination of Factors Affecting porosity Gradients in Unidirectionally Solidified Samples,” AFS Transactions, vol.116, (2008) pp.157-168, [6] F.M.
Kuo, "Mechanical Properties and Porosity Content of A201 Aluminum Alloy Castings in Different Cooling Rate Sand Molds", Advanced Materials Research , Vols. 154-155, (2011) pp.787-793, [8] C.Y.
Berry, “Effects of solidification Conditions on Mechanical Behavior of Al Cast Alloys,” AFS Trans.