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Online since: January 2021
Authors: Ajay K. Mandrawalia, Arun Gaur
The partial substitution of wollastonite micro fiber and granite block cutting waste enhanced the mechanical properties of cement concrete.
1.
Mechanical and physical properties of cement, wollastonite micro fiber, aggregate and granite block cutting waste Sl.
No Properties of Materials Observed Values 1.
Results and Discussions The observed results for different mechanical properties and fresh density are recorded in Table 4.
Mechanical properties of high-performance cement binders reinforced with wollastonite micro-fibres.
Mechanical and physical properties of cement, wollastonite micro fiber, aggregate and granite block cutting waste Sl.
No Properties of Materials Observed Values 1.
Results and Discussions The observed results for different mechanical properties and fresh density are recorded in Table 4.
Mechanical properties of high-performance cement binders reinforced with wollastonite micro-fibres.
Online since: March 2023
Authors: A.A. Fedotov, V.I. Deryugin, T.N. Vachnina, I.V. Susoeva
Modification of the phenol-formaldehyde binder with hydrogen peroxide reduces the curing time of the phenolic binder, the pressing temperature of the FSF plywood, and improves the physical and mechanical properties of the FSF plywood.
Regression models have been developed for dependence of the plywood strength during cleavage along the adhesive seam, strength during static bending, and thickness swelling after 24 hours in water on the factors varied in the experiment – the proportion of hydrogen peroxide addition and the pressing temperature.
The technological factors varied: factor X1 – the proportion of the hydrogen peroxide additive from 0 to 2.0 % of the binder weight (from -1 to +1 in the coded designations); factor X2 – pressing temperature – from 120 to 170 °C.
(3) Graphic dependences influence of various factors on cleavage strength along the adhesive seam after boiling for 1 hour are presented in Fig. 1, 2, on thickness swelling after 24 hours in water – in Fig. 3, 4.
Del Menezzi, Properties of a laminated wood composite produced with thermomechanically treated veneers, Advances in Materials Science and Engineering. 4 (2016) 1–9
Regression models have been developed for dependence of the plywood strength during cleavage along the adhesive seam, strength during static bending, and thickness swelling after 24 hours in water on the factors varied in the experiment – the proportion of hydrogen peroxide addition and the pressing temperature.
The technological factors varied: factor X1 – the proportion of the hydrogen peroxide additive from 0 to 2.0 % of the binder weight (from -1 to +1 in the coded designations); factor X2 – pressing temperature – from 120 to 170 °C.
(3) Graphic dependences influence of various factors on cleavage strength along the adhesive seam after boiling for 1 hour are presented in Fig. 1, 2, on thickness swelling after 24 hours in water – in Fig. 3, 4.
Del Menezzi, Properties of a laminated wood composite produced with thermomechanically treated veneers, Advances in Materials Science and Engineering. 4 (2016) 1–9
Online since: December 2014
Authors: Miroslav Müller, Jan Cidlina, Jozef Žarnovský
Effect of Strain Rate on Mechanical Properties of Two-Component Epoxy Adhesive Bond
Jan Cidlina1,a, Jozef Žarnovský2,b and Miroslav Müller3,c
1,3Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Prague – 6, Czech Republic
2Department of Quality and Engineering Technologies, Faculty of Engineering, Slovak University of Agriculture in Nitra, Tr.
One of the affecting factors is strain rate.
The adhesive technology is one of the joining material methods providing possibilities to create the joint with a range of shapes and properties that are not possible to achieve using 'classic' methods [1,2].
An adhesive bond is a complex assembly the creation and following use of which is limited by a number of factors [1,5].
The resulting properties depend on the type of adhesive; nevertheless, better results were shown by adhesives filled with rubber [13].
One of the affecting factors is strain rate.
The adhesive technology is one of the joining material methods providing possibilities to create the joint with a range of shapes and properties that are not possible to achieve using 'classic' methods [1,2].
An adhesive bond is a complex assembly the creation and following use of which is limited by a number of factors [1,5].
The resulting properties depend on the type of adhesive; nevertheless, better results were shown by adhesives filled with rubber [13].
Online since: January 2010
Authors: Sarah Jurak, Christian A. Widener, Dwight A. Burford
The importance of these factors and the means for characterizing them for
developing standards and specifications are also discussed.
Because of its localized nature it produces gradients in both material and mechanical properties.
Beyond 100-hours, the material properties change little, unless the alloy is heated above 100°C.
Gradients in joint properties were documented with electrical conductivity and microhardness measurements.
Figure 1 shows typical properties with softer heat affected zones located on either side of the stir zone.
Because of its localized nature it produces gradients in both material and mechanical properties.
Beyond 100-hours, the material properties change little, unless the alloy is heated above 100°C.
Gradients in joint properties were documented with electrical conductivity and microhardness measurements.
Figure 1 shows typical properties with softer heat affected zones located on either side of the stir zone.
Online since: July 2011
Authors: Somnath Chattopadhyaya, Aniruddha Ghosh, S. Mukherjee
It is observed that a refine microstructure of the HAZ, imparts largely the intended properties of the welded joint [1].
A combined effect of chemical composition of flux and welding parameters on the mechanical properties of SAW process is shown to be of utmost significance [4-5].
Experimental Procedure The experiments were conducted as per the design matrix at random to avoid errors due to noise factors.
[5] Kanjilal,P., Pal,T.K., Majumdar,S.K., Combined Effect of Flux and welding Parameters on Chemical Composition and Mechanical Properties of submerged arc Weld Metal; J. of Materials Processing Technology V.171, N.2,2006
[6] Livieri,P., Lazzarin,P., “Fatigue strength of steel and aluminum welded joints based on generalized stress intensity factors and local strain energy values; Int.
A combined effect of chemical composition of flux and welding parameters on the mechanical properties of SAW process is shown to be of utmost significance [4-5].
Experimental Procedure The experiments were conducted as per the design matrix at random to avoid errors due to noise factors.
[5] Kanjilal,P., Pal,T.K., Majumdar,S.K., Combined Effect of Flux and welding Parameters on Chemical Composition and Mechanical Properties of submerged arc Weld Metal; J. of Materials Processing Technology V.171, N.2,2006
[6] Livieri,P., Lazzarin,P., “Fatigue strength of steel and aluminum welded joints based on generalized stress intensity factors and local strain energy values; Int.
Online since: March 2010
Authors: Zhi Feng Liu, Qi Zhang, Wen Tong Yang, Jian Hua Wang, Yong Sheng Zhao
Introduction
Automotive panel forming process is a plastic forming process which involve geometric nonlinearity,
contact and material nonlinearity, large deflection and large deformation, its affecting factors is more
and difficult to determine.
The forming quality of the fender is affected by many factors, and these factors are mutual restriction and mutual transformation [1,2].
It can analyze various factors such as die clearance, friction state, blind force size, material parameters and punch velocity affect stamping processes, and it also can do sensitivity analysis and optimal design [6, 7].
The main mechanical properties of materials parameters are as follows: coefficient of normal anisotropy r = 2.18, Hardening Exponent N = 0.232, yield strength is 190MPa, using Belytschko-Tsay thin shell element theory to analyses [8], adaptive grid meshing.
Because of the defects of such results, on the premise of not affecting product performance, the part requires some modification.
The forming quality of the fender is affected by many factors, and these factors are mutual restriction and mutual transformation [1,2].
It can analyze various factors such as die clearance, friction state, blind force size, material parameters and punch velocity affect stamping processes, and it also can do sensitivity analysis and optimal design [6, 7].
The main mechanical properties of materials parameters are as follows: coefficient of normal anisotropy r = 2.18, Hardening Exponent N = 0.232, yield strength is 190MPa, using Belytschko-Tsay thin shell element theory to analyses [8], adaptive grid meshing.
Because of the defects of such results, on the premise of not affecting product performance, the part requires some modification.
Online since: February 2016
Authors: Jacek Mendala
It provides the way to obtain the coating with required physical, mechanical and chemical properties.
Despite the good properties of these coatings, due to increasing aggressiveness, the new methods to improve their properties are sought.
The basic mechanical properties of the material were determined in the static tensile test using the Instron 4469 machine, these results are presented in Table 2.
Michalik, Influence of Solutionizing on Structure and Mechanical Properties of ZnAl40Cu3 alloy, Materialwiss.
Michalik, The effect of modification with rare earth elements on ZnAl22Cu3 alloy structure and mechanical properties, Arch.
Despite the good properties of these coatings, due to increasing aggressiveness, the new methods to improve their properties are sought.
The basic mechanical properties of the material were determined in the static tensile test using the Instron 4469 machine, these results are presented in Table 2.
Michalik, Influence of Solutionizing on Structure and Mechanical Properties of ZnAl40Cu3 alloy, Materialwiss.
Michalik, The effect of modification with rare earth elements on ZnAl22Cu3 alloy structure and mechanical properties, Arch.
Online since: November 2011
Authors: Yan Ru Chen, Xue Jiao Chen, Chang Song Wang
Fig.1 IR spectra of a-G0, b-G30 and c-G30M6
Mechanical properties.
Figure 2 shows the mechanical properties of samples in different molding temperature.
When molding temperature is lower, cross-linking process cannot be fully completed, which lead to poor mechanical properties.
With the rise of temperature, the degree of cross linking increases, the mechanical properties also increased.
These two factors contribute to the increased mechanical properties of the cottonseed protein plastics.
Figure 2 shows the mechanical properties of samples in different molding temperature.
When molding temperature is lower, cross-linking process cannot be fully completed, which lead to poor mechanical properties.
With the rise of temperature, the degree of cross linking increases, the mechanical properties also increased.
These two factors contribute to the increased mechanical properties of the cottonseed protein plastics.
Online since: February 2016
Authors: Ming Chao Wang, Xin Tao, Jia Chen Liu
China
ataoxin@tju.edu.cn; bjcliutju@tju.edu.cn; cdrmingcw@gmail.com;
Keywords: Magnesium phosphate cement; Heat-treatment; Microstructure; Mechanical properties
Abstract.
Wu, Factors influencing properties of phosphate cement-based binder for rapid repair of concrete, Cem.
Bowles, et al., Antimicrobial properties and dentin bonding strength of magnesium phosphate cements, Acta Biomate. 9 (2013) 8384-8393
Li, Influence of magnesia-to-phosphate molar ratio on microstructures, mechanical properties and thermal conductivity of magnesium potassium phosphate cement paste with large water-to-solid ratio, Cem.
El-Jazairi, The effect of retarders on the microstructure and mechanical properties of magnesia–phosphate cement mortar, Cem.
Wu, Factors influencing properties of phosphate cement-based binder for rapid repair of concrete, Cem.
Bowles, et al., Antimicrobial properties and dentin bonding strength of magnesium phosphate cements, Acta Biomate. 9 (2013) 8384-8393
Li, Influence of magnesia-to-phosphate molar ratio on microstructures, mechanical properties and thermal conductivity of magnesium potassium phosphate cement paste with large water-to-solid ratio, Cem.
El-Jazairi, The effect of retarders on the microstructure and mechanical properties of magnesia–phosphate cement mortar, Cem.
Online since: August 2013
Authors: Diana Antonia Gheorghiu, Marius Ioan Chirileanu
According to their works, the strength of spot-welds depends on several factors like structure and property of base metals, characteristics and configuration of the welds, size and geometry of the specimens, mode of loading, test conditions [3].
Aslanlar [4] has studied the effect of nucleus size on mechanical properties.
As any welding process RSW induces in the welded material structural changes that affect all the mechanical properties, including the material hardness in the welded zone.
Aslanlar, The effect of nucleus size on mechanical properties in electrical resistance spot welding of sheets used in automotive industry, Materials and Design. 27 (2006) 125–131
Demir, Effect of welding current on mechanical properties of galvanized chromided steel sheets in electrical resistance spot welding, Materials and Design. 28 (2007) 2–7
Aslanlar [4] has studied the effect of nucleus size on mechanical properties.
As any welding process RSW induces in the welded material structural changes that affect all the mechanical properties, including the material hardness in the welded zone.
Aslanlar, The effect of nucleus size on mechanical properties in electrical resistance spot welding of sheets used in automotive industry, Materials and Design. 27 (2006) 125–131
Demir, Effect of welding current on mechanical properties of galvanized chromided steel sheets in electrical resistance spot welding, Materials and Design. 28 (2007) 2–7