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Online since: April 2019
Authors: Surat Triwanapong, Kittipong Kimapong
So, this research work aimed to study an effect of the shielding gas type on the mechanical properties of the dissimilar SS400/SUS304 steels butt joint.
A relation between microstructure and the mechanical properties of the butt joint was also investigated and compared.
Mathew, Selection of filler wire for and effect of auto tempering on the mechanical properties of dissimilar metal joint between 403 and 304L(N) stainless steels, Journal of Materials Processing Technology 209 (2009) 1428-1435
Alsaran, Mechanical and Structural Properties of Similar and Dissimilar Steel Joints, Materials Characterization 43 (1999) 311-318
Shanmugarajan, Effect of shielding gases on microstructure and mechanical properties of super austenitic stainless steel by hybrid welding, Materials & Design 33 (2012) 203-212
A relation between microstructure and the mechanical properties of the butt joint was also investigated and compared.
Mathew, Selection of filler wire for and effect of auto tempering on the mechanical properties of dissimilar metal joint between 403 and 304L(N) stainless steels, Journal of Materials Processing Technology 209 (2009) 1428-1435
Alsaran, Mechanical and Structural Properties of Similar and Dissimilar Steel Joints, Materials Characterization 43 (1999) 311-318
Shanmugarajan, Effect of shielding gases on microstructure and mechanical properties of super austenitic stainless steel by hybrid welding, Materials & Design 33 (2012) 203-212
Online since: December 2013
Authors: Jian Yun He, Yong Liu, Qiang Wang, Li Chen He
The influent factors on hydrophilic properties and UV curing speed of the resin were discussed, and the modified resin has compared with that of unmodified resin.
However, comparing with the traditional oil UV-curing coatings [4], waterborne UV-curing coating has many limitations, such as low UV-curable speed, poor water resistance and low mechanical properties, which limited its development.
affect the hydrophilism of the WPUA resin.
The effects of hyperbranched polyester content on the properties of WPUA film is shown in Table 2.
During the curing of the film a dense network structure was formed and polymer chains were cored to hyperbranched polyester, so the mechanical properties of film were greatly improved.
However, comparing with the traditional oil UV-curing coatings [4], waterborne UV-curing coating has many limitations, such as low UV-curable speed, poor water resistance and low mechanical properties, which limited its development.
affect the hydrophilism of the WPUA resin.
The effects of hyperbranched polyester content on the properties of WPUA film is shown in Table 2.
During the curing of the film a dense network structure was formed and polymer chains were cored to hyperbranched polyester, so the mechanical properties of film were greatly improved.
Online since: November 2011
Authors: Xing Juan Wang, Ran Liu, Li Guang Zhu, Hong Li, Jue Fang
Compressive strength of coke in blast furnace is influenced by three main factors: property, temperature and carbon loss rate.
Coke properties mainly include internal structure, chemical composition, size and reactivity and other aspects[5].
Coke bears mechanical effects in blast furnace, chemical corrosion and high thermal stress.
High temperature and carbon loss are key factors to decline the strength of coke in blast furnace.
Normal properties of the selected coke are shown in table 1.
Coke properties mainly include internal structure, chemical composition, size and reactivity and other aspects[5].
Coke bears mechanical effects in blast furnace, chemical corrosion and high thermal stress.
High temperature and carbon loss are key factors to decline the strength of coke in blast furnace.
Normal properties of the selected coke are shown in table 1.
Online since: July 2015
Authors: Li Cong, Xue Zheng
Analysis model for stability of post-earthquake embankment (filled-subgrade) with cracks was established to determine the impact significance of influencing factors.
Where γw is the bulk density of water, hc is the depth of crack. 2.2 Parameter combination Factors affecting stability of fill subgrade within cracks can be concluded to subgrade geometry, the physical and mechanical properties of subgrade soil, foundation conditions and the crack properties.
The factors considered in the stability analysis are shown in Table 1.
Table.1 Factors consideration in stability analysis of subgrade with cracks(Filled-subgrade) Consider factors Value of level 1 2 3 1 height of Subgrade (m) subgrade geometric parameters 8 20 30 2 width of Subgrade (m) 10 23 33.5 3 soil cohesion c(kPa) embankment physical and mechanical parameters 22 32 42 4 internal friction angle φ(°) 9 14 19 5 bulk density γ(kN/m3) 17.5 20 22.5 6 ground transverse gradient foundation conditions 0 1:5 1:2.5 7 crack depth (m) crack properties 2 5 8 8 crack location A2 B2 C2 9 crack width (m) 1 3 5 10 crack moisture conditions A4 B4 C4 2.3 Calculation method Different subgrade stability calculation methods are selected according to different working conditions referring to Highway Subgrade Design Specification: ①For flat slope subgrade (The foundation is the flat slope), the simplified Bishop method is adopt; ②For the steep subgrade (the foundation slope≥1:2.5), a common slice method (GLE) is adopt to calculate the overall stability along the steep
References [1] Ouyang Xiangqian Cut-fill subgrade slope stability study mechanical mechanism [D] Changsha: Hunan University, 2007
Where γw is the bulk density of water, hc is the depth of crack. 2.2 Parameter combination Factors affecting stability of fill subgrade within cracks can be concluded to subgrade geometry, the physical and mechanical properties of subgrade soil, foundation conditions and the crack properties.
The factors considered in the stability analysis are shown in Table 1.
Table.1 Factors consideration in stability analysis of subgrade with cracks(Filled-subgrade) Consider factors Value of level 1 2 3 1 height of Subgrade (m) subgrade geometric parameters 8 20 30 2 width of Subgrade (m) 10 23 33.5 3 soil cohesion c(kPa) embankment physical and mechanical parameters 22 32 42 4 internal friction angle φ(°) 9 14 19 5 bulk density γ(kN/m3) 17.5 20 22.5 6 ground transverse gradient foundation conditions 0 1:5 1:2.5 7 crack depth (m) crack properties 2 5 8 8 crack location A2 B2 C2 9 crack width (m) 1 3 5 10 crack moisture conditions A4 B4 C4 2.3 Calculation method Different subgrade stability calculation methods are selected according to different working conditions referring to Highway Subgrade Design Specification: ①For flat slope subgrade (The foundation is the flat slope), the simplified Bishop method is adopt; ②For the steep subgrade (the foundation slope≥1:2.5), a common slice method (GLE) is adopt to calculate the overall stability along the steep
References [1] Ouyang Xiangqian Cut-fill subgrade slope stability study mechanical mechanism [D] Changsha: Hunan University, 2007
Online since: April 2016
Authors: Lukáš Kalina, Miroslava Hajdúchová, Markéta Langová, Vojtěch Enev
The goal of this study is to evaluate the suitability of plasticizer and find the convenient dose of this admixture, which improve the workability and mechanical properties of alkali-activated slag.
These properties may be affected with the chemical admixtures referred to as plasticizers.
With the addition of 1.0 wt. % of LS, the mechanical properties have risen again.
The mechanical properties of alkali activated slag are especially affected in the early ages with the higher addition of LS plasticizer, but after 28 days achieved similar strengths as the reference sample.
Pratt, Factors affecting the strength of alkali-activated slag, Cem.
These properties may be affected with the chemical admixtures referred to as plasticizers.
With the addition of 1.0 wt. % of LS, the mechanical properties have risen again.
The mechanical properties of alkali activated slag are especially affected in the early ages with the higher addition of LS plasticizer, but after 28 days achieved similar strengths as the reference sample.
Pratt, Factors affecting the strength of alkali-activated slag, Cem.
Online since: January 2010
Authors: A.C. Vieira, J.C. Vieira, R.M. Guedes, A.T. Marques
Weights and mechanical properties were measured after six different degradation stages.
In this experimental study mechanical properties of fibres were compared at different strain rates.
They represent a wide range of mechanical properties and degradation times, as can be seen in Fig. 1.
Mechanical properties were also repeatedly evaluated at the end of each stage.
Conclusions Mechanical properties and degradation rates can be tailored to match the device requirements.
In this experimental study mechanical properties of fibres were compared at different strain rates.
They represent a wide range of mechanical properties and degradation times, as can be seen in Fig. 1.
Mechanical properties were also repeatedly evaluated at the end of each stage.
Conclusions Mechanical properties and degradation rates can be tailored to match the device requirements.
Online since: October 2025
Authors: Ki Woo Nam, Ho Seok Nam, Ji Min Yun
Mechanical properties are shown in Table 2 and were measured according to EN ISO 6892-1 B10.
Table 2 Mechanical properties of the maraging steel.
Like this, mechanical properties are more influenced by the distribution of residual stress due to peening than by microstructure.
Ojo, Additive manufacturing of 18% nickel maraging steels: Defect, structure and mechanical properties: A review, Journal of Materials Science & Technology. 120 (2022) 227-252
Loge, 3D laser shock peening – A new method for improving fatigue properties of selective laser melted parts, Additive Manufacturing. 33 (2020) 101112
Table 2 Mechanical properties of the maraging steel.
Like this, mechanical properties are more influenced by the distribution of residual stress due to peening than by microstructure.
Ojo, Additive manufacturing of 18% nickel maraging steels: Defect, structure and mechanical properties: A review, Journal of Materials Science & Technology. 120 (2022) 227-252
Loge, 3D laser shock peening – A new method for improving fatigue properties of selective laser melted parts, Additive Manufacturing. 33 (2020) 101112
Online since: October 2014
Authors: Gheorghe Brabie, Robert Stefanut Teaca
The material used in this analysis is copper - zinc alloy with anisotropic properties.
There are multiple factors that affect the geometry deviations: sidewall angle, friction coefficient, tools gap, punch radius, and punch speed.
As a result, it is necessary to build an optimal design guideline derived from understanding the actual phenomenon of material deformation, the variation of material properties and interaction phenomena in the process.
There are many factors which affect springback, such as anisotropy of the material, shape of the final mini part, friction conditions and process parameters.
The CuZn37 alloy is described by the following properties: density 2,7x10-9 t/mm3; elastic properties: Young's modulus: 7.0x105 MPa; Poisson's ratio: 0.3 and anisotropy coefficient 0.658.
There are multiple factors that affect the geometry deviations: sidewall angle, friction coefficient, tools gap, punch radius, and punch speed.
As a result, it is necessary to build an optimal design guideline derived from understanding the actual phenomenon of material deformation, the variation of material properties and interaction phenomena in the process.
There are many factors which affect springback, such as anisotropy of the material, shape of the final mini part, friction conditions and process parameters.
The CuZn37 alloy is described by the following properties: density 2,7x10-9 t/mm3; elastic properties: Young's modulus: 7.0x105 MPa; Poisson's ratio: 0.3 and anisotropy coefficient 0.658.
Online since: September 2016
Authors: K.T. Akhil, K. Shunmugesh, Cyriac Genuvin, Paul Bins, George Davis, Solomon Blaise
This paper studies the mechanical properties of the aramid fiber reinforced epoxy resin composite by varying the percentage composition.
The results of the tests on the three compositions are analyzed and the variation in its mechanical properties are noted.
This paper includes the mechanical testing of the different properties of the aramid fiber that is manufactured through vacuum suction method.
This makes the adhesion properties to increase between the epoxy and carbon.
This angle affects both the fracture propagation and the fracture toughness.
The results of the tests on the three compositions are analyzed and the variation in its mechanical properties are noted.
This paper includes the mechanical testing of the different properties of the aramid fiber that is manufactured through vacuum suction method.
This makes the adhesion properties to increase between the epoxy and carbon.
This angle affects both the fracture propagation and the fracture toughness.
Online since: April 2013
Authors: M. El Achaby, Abou El Kacem Qaiss, El Mokhtar Essassi
A great technological interest have developed in particle-filled polymer composites as improvements in properties of polymers can be done by reinforcing it with additional materials, so that overall properties of the composites are superior to those of the individual components as properties of the composite depends on the intrinsic properties of the reinforce material [1-4].
It possesses many remarkable properties, such as good thermal stability under operating and processing temperatures, inflammability, excellent resistance to chemical products in combination with very low creep and high mechanical strength.
As reference, neat PVDF samples were also similarly processed for study of the properties.
In general, the properties of semi-crystalline thermoplastic materials are strongly related to their internal microstructure and crystallinity, particularly the mechanical properties and thermal stability.
Due to the high rigidity of CaCO3 and the relatively strong interaction between CaCO3 and PVDF chains as well as the homogeneity of dispersion/distribution of CaCO3 into PVDF, the CaCO3 enhanced the mechanical properties of PVDF polymer.
It possesses many remarkable properties, such as good thermal stability under operating and processing temperatures, inflammability, excellent resistance to chemical products in combination with very low creep and high mechanical strength.
As reference, neat PVDF samples were also similarly processed for study of the properties.
In general, the properties of semi-crystalline thermoplastic materials are strongly related to their internal microstructure and crystallinity, particularly the mechanical properties and thermal stability.
Due to the high rigidity of CaCO3 and the relatively strong interaction between CaCO3 and PVDF chains as well as the homogeneity of dispersion/distribution of CaCO3 into PVDF, the CaCO3 enhanced the mechanical properties of PVDF polymer.