Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: February 2011
Authors: Jian Xiong Ye, Ye Jiang Wang, Shuang Zhao, Ming Chao Yang, Chang Hui Yang
Furthermore, the corrosion process of the steel leads to substantial reduction of the cross-section of the rebar in concrete and, as a result, to deleterious effects on the mechanical properties of the overall structure[1].
The factors affecting the durability of concrete and their relationship were confirmed by the "Design Guideline for Durable Concrete’s Structures" of CEB European Committee for Concrete published in 1989, and the corrosion of the reinforcing steel due to chloride ions is as the main reason, which takes up 33 percent of the durability damage of concrete[2].
One of the factors is the ability to hinder the permeation, which is determined by the porosity and the pore size distribution of the concrete, and the other one is the physical and chemical bonding force.
Factors Affecting Diffusion of Chloride Ion in Mortar System[J].Journal of Building Materials, 2008,11(3):328-333.
Influence of phosphate slag on hydration properties and pore structure of cement paste [J].
The factors affecting the durability of concrete and their relationship were confirmed by the "Design Guideline for Durable Concrete’s Structures" of CEB European Committee for Concrete published in 1989, and the corrosion of the reinforcing steel due to chloride ions is as the main reason, which takes up 33 percent of the durability damage of concrete[2].
One of the factors is the ability to hinder the permeation, which is determined by the porosity and the pore size distribution of the concrete, and the other one is the physical and chemical bonding force.
Factors Affecting Diffusion of Chloride Ion in Mortar System[J].Journal of Building Materials, 2008,11(3):328-333.
Influence of phosphate slag on hydration properties and pore structure of cement paste [J].
Online since: September 2017
Authors: Abdulwahab Giwa, Mufliah Gbemisola Omofoyewa, Lekan Taofeek Popoola
The input factors considered were contact time, temperature and fan speed while the response (output) chosen was the residual moisture content of the seeds.
The results obtained revealed that temperature, contact time and fan speed were affecting the drying of the seeds.
Factors affecting drying include vapour pressure, temperature, relative humidity, air circulation, nature of wet feed, the way it is introduced into the dryer and a host of other environmental factors [9].
For domestic purposes, Moringa oleifera leaf powder has been found to be effective as soap for hand washing when wetted in advance to enable antiseptic and detergent properties from phytochemicals in the leaves [17] to be active.
Also found from the results of this research was that temperature, contact time and fan speed were important parameters affecting drying of moringa seeds.
The results obtained revealed that temperature, contact time and fan speed were affecting the drying of the seeds.
Factors affecting drying include vapour pressure, temperature, relative humidity, air circulation, nature of wet feed, the way it is introduced into the dryer and a host of other environmental factors [9].
For domestic purposes, Moringa oleifera leaf powder has been found to be effective as soap for hand washing when wetted in advance to enable antiseptic and detergent properties from phytochemicals in the leaves [17] to be active.
Also found from the results of this research was that temperature, contact time and fan speed were important parameters affecting drying of moringa seeds.
Online since: August 2013
Authors: Thomas Rainer Neitzert, Maziar Ramezani
Dents not only affect the structural integrity of pipelines but they cause a local decrease in the pipe’s cross-section, which in turn affects the flow through the pipe (Cosham and Hopkins, 2004).
The size, shape, and location of the original dent affect the remaining life, as do external factors such as the constraint provided by the surrounding soil.
The pipe material is steel and the true stress–true strain curves were obtained from tensile experiments and plastic material properties are included, with nonlinear isotropic strain hardening.
The spring back and rerounding behavior of a dent depends upon the pipe geometry, the material properties, whether the pipeline is pressurized or unpressurized, and the shape of the dent.
International Journal of Mechanical Sciences 47 (12) , pp. 1949-1971
The size, shape, and location of the original dent affect the remaining life, as do external factors such as the constraint provided by the surrounding soil.
The pipe material is steel and the true stress–true strain curves were obtained from tensile experiments and plastic material properties are included, with nonlinear isotropic strain hardening.
The spring back and rerounding behavior of a dent depends upon the pipe geometry, the material properties, whether the pipeline is pressurized or unpressurized, and the shape of the dent.
International Journal of Mechanical Sciences 47 (12) , pp. 1949-1971
Online since: October 2010
Authors: Xiao Cong He
The increasing complex joint geometry and its three dimensional nature combine to increase the difficulty of obtaining an overall system of governing equations for predicting the fatigue properties of the adhesively bonded joints.
They concluded that the joint ultimate loads could be accurately predicted based on stress concentration factors from FEA and FRP through-thickness tensile strength values obtained from small-scale coupon tests.
A 3D FEA of the hybrid joint was carried out using the ABAQUS code with the model including the effects of large-deformations, bolt-hole contact and non-linear adhesive material properties.
The analyses revealed that adhesive layers introduce large increases in the in- and out-of-plane displacements, reduce bending and stress concentration factors (SCF), and increase the fatigue life of riveted lap joints.
However, accurate and reliable FEA is still a difficult task as the fatigue behaviour of these joints is not only influenced by the geometric characteristics of the joints but also by different factors and their combinations.
They concluded that the joint ultimate loads could be accurately predicted based on stress concentration factors from FEA and FRP through-thickness tensile strength values obtained from small-scale coupon tests.
A 3D FEA of the hybrid joint was carried out using the ABAQUS code with the model including the effects of large-deformations, bolt-hole contact and non-linear adhesive material properties.
The analyses revealed that adhesive layers introduce large increases in the in- and out-of-plane displacements, reduce bending and stress concentration factors (SCF), and increase the fatigue life of riveted lap joints.
However, accurate and reliable FEA is still a difficult task as the fatigue 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: November 2012
Authors: Yeau Ren Jeng
These approaches were used to studies the defect effect on the mechanical properties of thin film, mechanical properties of nanotubes, and tribological phenomena at nano-scale interfaces.
Hence the study is aimed to investigate the interfacial behavior and mechanical properties of nano-materials.
In addition, Minot et al. [33] found that the mechanical and electrical properties of the nanotubes were affected by contact deformation via nanoindentation techniques.
Baohe, Mechanical and physical properties on carbon nanotube, J.
Gillespie, Mechanical properties of vapor-grown carbon fiber, Carbon 33 (1995) 1217-1221.
Hence the study is aimed to investigate the interfacial behavior and mechanical properties of nano-materials.
In addition, Minot et al. [33] found that the mechanical and electrical properties of the nanotubes were affected by contact deformation via nanoindentation techniques.
Baohe, Mechanical and physical properties on carbon nanotube, J.
Gillespie, Mechanical properties of vapor-grown carbon fiber, Carbon 33 (1995) 1217-1221.
Online since: June 2021
Authors: Zoltán Bézi, Csaba Takács, Réka Erdei
All material properties required for the simulation are summarized in Table 1.
The software also allows for the complete design of wedges and probes; however, it is advisable to read the available probes from the library to specify the exact dimensions and properties.
Simplification options of modelling should be applied without affecting the relevant parameters.
The only limitation of this type of POD curve generation is that it does not take into account the impact of organizational and human factors.
However, it should be noted that this only applies to the performance of the testing technique and does not address the impact of human and organizational factors.
The software also allows for the complete design of wedges and probes; however, it is advisable to read the available probes from the library to specify the exact dimensions and properties.
Simplification options of modelling should be applied without affecting the relevant parameters.
The only limitation of this type of POD curve generation is that it does not take into account the impact of organizational and human factors.
However, it should be noted that this only applies to the performance of the testing technique and does not address the impact of human and organizational factors.
Online since: June 2008
Authors: Maria A. Murzinova, Gennady A. Salishchev
The work was focused on the optimization of hydrogen content and deformation conditions with
the aim to create the nanostructure in titanium alloys and to enhance their mechanical properties.
The work was focused on the optimization of hydrogen content and deformation conditions with the aim to create the NC structure in titanium alloys and to enhance their mechanical properties.
The affect of hydrogen on mechanical properties and microstructure modification of two-phase titanium alloys is rather intricate since the hydrogen addition changes the phase composition of the alloy, chemical composition of initial phases and their stability [4].
Mechanical properties.
Their mechanical properties have been assessed both at room and elevated temperatures.
The work was focused on the optimization of hydrogen content and deformation conditions with the aim to create the NC structure in titanium alloys and to enhance their mechanical properties.
The affect of hydrogen on mechanical properties and microstructure modification of two-phase titanium alloys is rather intricate since the hydrogen addition changes the phase composition of the alloy, chemical composition of initial phases and their stability [4].
Mechanical properties.
Their mechanical properties have been assessed both at room and elevated temperatures.
Online since: September 2013
Authors: Xue Jun Zhao, Yang Yang
But for many years, green mining evaluation is lack of uniform standards and subjective decision factors affect much, so it is partly unfair.
Classified properties C from Data set S has m different discrete attribute value {C1, C2, …, Cm}.
Punishment factor is based on the parameter, using α to represent each node punishment.
The second is the second deviating node, and the final deviating node has the minimum affect.
[5] Paul P S, Maiti J, The role of behavioral factors on safety management in underground mines, Science Safety, 2007, 45:449-471
Classified properties C from Data set S has m different discrete attribute value {C1, C2, …, Cm}.
Punishment factor is based on the parameter, using α to represent each node punishment.
The second is the second deviating node, and the final deviating node has the minimum affect.
[5] Paul P S, Maiti J, The role of behavioral factors on safety management in underground mines, Science Safety, 2007, 45:449-471
Online since: August 2021
Authors: Renat V. Gavariev, Ksenia N. Gavarieva
The cyclical effect of these factors in the casting process contributes to the growth of heat cracks on the forming surfaces, which directly affects the quality of the surfaces of the resulting castings [4].
At the same time, these coatings provide a slowdown in the growth of cracks, both in the mold material and in the coating, due to high strength properties and the level of residual compressive stresses, but the effectiveness of multi-element coatings is different and depends on their properties.
This feature allows you to expand the possibility of using coatings in terms of obtaining properties that meet various requirements.
Thus, if we take into account all the factors described above, it is possible to form a coating in which the lower layer will have increased strength properties that reduce the wear of the forming surface, both at high and low intake speeds.
Hekimoǧlu, Relationships between mechanical and tribological properties of Zn-15Al-based ternary and quaternary alloys, International Journal of Materials Research. 107(7) (2016) 646-652
At the same time, these coatings provide a slowdown in the growth of cracks, both in the mold material and in the coating, due to high strength properties and the level of residual compressive stresses, but the effectiveness of multi-element coatings is different and depends on their properties.
This feature allows you to expand the possibility of using coatings in terms of obtaining properties that meet various requirements.
Thus, if we take into account all the factors described above, it is possible to form a coating in which the lower layer will have increased strength properties that reduce the wear of the forming surface, both at high and low intake speeds.
Hekimoǧlu, Relationships between mechanical and tribological properties of Zn-15Al-based ternary and quaternary alloys, International Journal of Materials Research. 107(7) (2016) 646-652
Online since: November 2019
Authors: B. Sachin, Roy Abhinaba, N.P. Puneet, Vinayak N. Kulkarni, C.J. Vishwas, B.N. Anjan, M. Naik Gajanan
Aluminum-based metal matrix composites (MMCs) have been suggested due to intense interest from automobile, marine, aerospace and other structural applications owing to their balanced mechanical, physical and chemical properties.
MMCs have very good corrosion resistance properties along with good specific strength.
For instance, few studies have reported an improvement in the tribological properties of the material under various cooling agents [2-5].
A comprehensive study was conducted by Vishwas et al. [11] on the surface integrity properties of AISI 410 martensitic stainless steel.
Taguchi's L9 orthogonal array with three factors and three levels are used for the present experimental study as shown in Table 2 and Table 3.
MMCs have very good corrosion resistance properties along with good specific strength.
For instance, few studies have reported an improvement in the tribological properties of the material under various cooling agents [2-5].
A comprehensive study was conducted by Vishwas et al. [11] on the surface integrity properties of AISI 410 martensitic stainless steel.
Taguchi's L9 orthogonal array with three factors and three levels are used for the present experimental study as shown in Table 2 and Table 3.