Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: March 2016
Authors: Jing Tao Wang, Yao Jiang, Yue Wang, Jian Yin
The research on the grain size effect showed that, the texture evolution would be affected by the initial grain size according to the differences in grain subdivision behavior[4, 5], the arrangement of shear bands[4, 6] and deformation mechanisms[10].
The samples were prepared by careful mechanical polishing followed by electro-polishing, and the measurements were all carried out from the center part and investigated from the transverse direction.
So, considering the effect of grain size on the final rolling texture, the texture before cold rolling could be treated as a minor factor.
Wang, Development of λ-fiber recrystallization texture and magnetic property in Fe–6.5wt% Si thin sheet produced by strip casting and warm rolling method, Materials Letters. 91 (2013) 150-153
Valiev, Effect of cold rolling on microstructure and mechanical properties of copper subjected to ECAP with various numbers of passes, Mat.
The samples were prepared by careful mechanical polishing followed by electro-polishing, and the measurements were all carried out from the center part and investigated from the transverse direction.
So, considering the effect of grain size on the final rolling texture, the texture before cold rolling could be treated as a minor factor.
Wang, Development of λ-fiber recrystallization texture and magnetic property in Fe–6.5wt% Si thin sheet produced by strip casting and warm rolling method, Materials Letters. 91 (2013) 150-153
Valiev, Effect of cold rolling on microstructure and mechanical properties of copper subjected to ECAP with various numbers of passes, Mat.
Online since: October 2016
Authors: Cezary Graczykowski, Blazej Poplawski, Łukasz Jankowski
Introduction
Recently, considerable research has been focused on semi-active control in structural and mechanical engineering [1].
The common factor that differentiates semi-active control from fully active, as well as passive, systems is the paradigm of smart self-adaptivity.
Frame material is a steel with basic properties used in engineering: density ρ = 7850 [kg/m3], Young modulus E = 2e11 [Pa].
Szolc, On the semi-active control method for torsional vibrations in electro-mechanical systems by means of rotary actuators with a magneto-rheological fluid, J Theor Appl Mech 51 (2013) 979-992
[12] L.Gaul, R.Nitsche, The role of friction in mechanical joints.
The common factor that differentiates semi-active control from fully active, as well as passive, systems is the paradigm of smart self-adaptivity.
Frame material is a steel with basic properties used in engineering: density ρ = 7850 [kg/m3], Young modulus E = 2e11 [Pa].
Szolc, On the semi-active control method for torsional vibrations in electro-mechanical systems by means of rotary actuators with a magneto-rheological fluid, J Theor Appl Mech 51 (2013) 979-992
[12] L.Gaul, R.Nitsche, The role of friction in mechanical joints.
Online since: October 2021
Authors: Abhishek Kumar Gupta, Sarvesh Kumar Gupta, Shivani Gupta, Ankita Pandey, Rajesh Kumar Yadav
The biopolymers are typically used as additives of fluids or plugging agents to correct the fluid properties, and this affects the performance and price of oil recovery [15].
The obtained HOMO-LUMO energies helped to study the chemical reactivity properties.
It could be used as plugging agents to correct fluid properties.
Chemical structure and physico-chemical properties of agar.
Effect of nonlinear FG-CNT distribution on mechanical properties of functionally graded nano-composite beam.
The obtained HOMO-LUMO energies helped to study the chemical reactivity properties.
It could be used as plugging agents to correct fluid properties.
Chemical structure and physico-chemical properties of agar.
Effect of nonlinear FG-CNT distribution on mechanical properties of functionally graded nano-composite beam.
Online since: December 2025
Authors: Dmytro Kolosov, Serhii Onyshchenko, Hanna Tantsura, Ivan Belmas, Olena Bilous
The studies of technologies for supporting the mine workings considering geomechanic factors are carried out in papers [6-9].
The specified property is advisable to use for decreasing the influence of the cable breakage on belt strength.
Husiev, Changes in the rock mass geomechanical properties with account of the Chaos Theory based on a computational experiment. 15th Chaotic Modeling and Simulation International Conference (2023) 41-52.
Snihur, Generalization of trends in the influence of geomechanics factors on the choice of operation modes for the fastening system in the preparatory mine workings.
Changyun, Analysis of Strength Factors of Steel Cord Conveyor Belt Splices Based on the FEM, Advances in Materials Science and Engineering, Vol. 2019.
The specified property is advisable to use for decreasing the influence of the cable breakage on belt strength.
Husiev, Changes in the rock mass geomechanical properties with account of the Chaos Theory based on a computational experiment. 15th Chaotic Modeling and Simulation International Conference (2023) 41-52.
Snihur, Generalization of trends in the influence of geomechanics factors on the choice of operation modes for the fastening system in the preparatory mine workings.
Changyun, Analysis of Strength Factors of Steel Cord Conveyor Belt Splices Based on the FEM, Advances in Materials Science and Engineering, Vol. 2019.
Online since: December 2012
Authors: Jimmy C. Yu, Wan Jun Wang, Po Keung Wong
Introduction:
Inadequate access to clean water and sanitation has been one of the most pervasive problems affecting people throughout the world.
The key parameters affecting the disinfection efficiency in terms of the reliable life (tR value) of this model were studied.
The calcination atmosphere strongly affected the composition, structure, and optical and antimicrobial properties of TiON nano-particles.
The long-rangeπ-conjugation in graphene yields these extraordinary thermal, mechanical, and electrical properties, which is favorable for transportation of charge carriers in photocatalytic reactions.
Ruoff, Graphene and graphene oxide: synthesis, properties, and applications, Adv.
The key parameters affecting the disinfection efficiency in terms of the reliable life (tR value) of this model were studied.
The calcination atmosphere strongly affected the composition, structure, and optical and antimicrobial properties of TiON nano-particles.
The long-rangeπ-conjugation in graphene yields these extraordinary thermal, mechanical, and electrical properties, which is favorable for transportation of charge carriers in photocatalytic reactions.
Ruoff, Graphene and graphene oxide: synthesis, properties, and applications, Adv.
Online since: January 2013
Authors: Olli Nyrhilä, Antti Salminen, Marika Hirvimäki, Matti Manninen, Antti Lehti, Ari Happonen
Final properties of the LAM product, such as geometrical (accuracy etc.) and mechanical properties (density, strength etc.), are particularly dependent on energy input and heat transfer from the treated layer to surrounding material. [5,6] Thus, ability to control energy input in LAM process is very important for product quality and it is examined also in this study.
The chemical composition and the physical properties of the powder are shown in Table 1.
Chemical composition and physical properties of the powder used in this study.
This phenomenon could be the result of uneven cooling rate or could be caused by unstable behavior of process properties.
When taking all the process advocating factors into account, it might be possible to use pyrometer for monitoring and also for process control.
The chemical composition and the physical properties of the powder are shown in Table 1.
Chemical composition and physical properties of the powder used in this study.
This phenomenon could be the result of uneven cooling rate or could be caused by unstable behavior of process properties.
When taking all the process advocating factors into account, it might be possible to use pyrometer for monitoring and also for process control.
Online since: February 2006
Authors: Andreas Trautmann, Michael F. Zaeh
The welding process itself induces a heat
affected zone (HAZ) in the material.
The independency of control is however a critical enabling factor for the prevention of finish craters of aluminum fusion weld seam, as described below.
Fig.1: HPDL power and vf versus width Yet deep penetration welding is a critical deciding factor to avoid the 'kissing bond' phenomenon in aluminum welds.
See Table 1. 2,0 2,5 3,0 3,5 4,0 4,5 5,0 2000 2200 2400 2600 2800 3000 0 1 2 3 4 5 6 width w mm PHPDL W vf m/min 0 1,5 2,0 2,5 3,0 3,5 4,0 5,0 6,0 Material Property Al Al2O3 Melting Temperature [°C] 660 2054 Vaporisation Temperature [°C] 2060 ©/© Thermal Conductivity [W m -1 K -1] 230 6.3 - 30 Density [g cm -3] 2.7 3.9 Table 1: Material Properties In addition the thermal conductivity of Al2O3 is below that of pure aluminum.
Porosity is detriment to the mechanical properties of the seam in quasi-static tensile as well as dynamical loading.
The independency of control is however a critical enabling factor for the prevention of finish craters of aluminum fusion weld seam, as described below.
Fig.1: HPDL power and vf versus width Yet deep penetration welding is a critical deciding factor to avoid the 'kissing bond' phenomenon in aluminum welds.
See Table 1. 2,0 2,5 3,0 3,5 4,0 4,5 5,0 2000 2200 2400 2600 2800 3000 0 1 2 3 4 5 6 width w mm PHPDL W vf m/min 0 1,5 2,0 2,5 3,0 3,5 4,0 5,0 6,0 Material Property Al Al2O3 Melting Temperature [°C] 660 2054 Vaporisation Temperature [°C] 2060 ©/© Thermal Conductivity [W m -1 K -1] 230 6.3 - 30 Density [g cm -3] 2.7 3.9 Table 1: Material Properties In addition the thermal conductivity of Al2O3 is below that of pure aluminum.
Porosity is detriment to the mechanical properties of the seam in quasi-static tensile as well as dynamical loading.
Online since: July 2014
Authors: Zheng Hua Feng, Zhong Tao Liu
Landslide disaster has caused huge losses to human life and property, which has brought the serious influence to the engineering construction[1~2] as well.
The landslide slope stability is its natural adjustment, what influence the steady state effect factors are natural and human activities.
Frame type model test adopt the similarity model materials and the criteria in the framework by making model in normal gravity, and measure its deformation, stress and other factors in the model satisfying the boundary conditions of similar cases, and then reveal the formation mechanism of the landslide prototype[4].
We can control the elevation angle in a certain range, but the large section hydraulic cylinder will appear crawl phenomenon when it is in the low great pressure, thus causing pulsating torque when the hydraulic pressure lifting the landslide model box, and the pulsating torque will affect the landslide model experiment.
Changeable factors associated with water, soil water and soil factors such as landslide movement.
The landslide slope stability is its natural adjustment, what influence the steady state effect factors are natural and human activities.
Frame type model test adopt the similarity model materials and the criteria in the framework by making model in normal gravity, and measure its deformation, stress and other factors in the model satisfying the boundary conditions of similar cases, and then reveal the formation mechanism of the landslide prototype[4].
We can control the elevation angle in a certain range, but the large section hydraulic cylinder will appear crawl phenomenon when it is in the low great pressure, thus causing pulsating torque when the hydraulic pressure lifting the landslide model box, and the pulsating torque will affect the landslide model experiment.
Changeable factors associated with water, soil water and soil factors such as landslide movement.
Online since: August 2010
Authors: Yao Yang Tsai, Mîng Chih Hung, Lin Wang
Unlike other traditional mechanical
cutting methods, EDM removes materials away by sparks, which leads to high temperature and
pressure.
As a result, it has no restriction to hardness because of its non-contact property.
It's the biggest problem, which will affect the surface roughness and mold's life.
It seems to mean that electro-rheological chains still can keep and have elastic property.
Because ER fluid consists of liquid and powder, both of their properties influence the strength of electro-rheological chain.
As a result, it has no restriction to hardness because of its non-contact property.
It's the biggest problem, which will affect the surface roughness and mold's life.
It seems to mean that electro-rheological chains still can keep and have elastic property.
Because ER fluid consists of liquid and powder, both of their properties influence the strength of electro-rheological chain.
Online since: May 2012
Authors: Bao Tao Huang, Ding Liu, Fang Wang, Jie Li
Comprehensive considered factors of test measurement precision, test site, and loaded ability, etc. determines length scales of model λ= 200, other corresponding physical quantity of model scales respectively : weight scales λw=λ3; pressure scales λp=λ; the end wide in test B=0.14m, thickness t=0.14m, 28m; The sample particles was gradation particles material made by pmma, particles had better irregular rate, and hadnot sharp edges and corners, its weight errors was controlled within ± 5%, gradation material top load imposed by 5N, 10N, 15N, 100N, 200N, 300N, rectangular load inprototy respectively.
Fig.3 Different strain load affect comparison It can be seen in Fig.3, there was a linear positive correlation between road material external loads in vertical (vibration compacting) and trends of diffusion and attenuation, as the load increases, transfer depth also increases.
Vibration compaction load is effective to the particles under active state because particles can move and the space structure of the material can be changed as well as the mechanical property of the material can be inhanced only when their acceleration is greater than the one of gravity .so, the activation area can also be called as effective compression area.The canonical active region of vibration compacting load is shown in Fig.6.
Fig.3 Different strain load affect comparison It can be seen in Fig.3, there was a linear positive correlation between road material external loads in vertical (vibration compacting) and trends of diffusion and attenuation, as the load increases, transfer depth also increases.
Vibration compaction load is effective to the particles under active state because particles can move and the space structure of the material can be changed as well as the mechanical property of the material can be inhanced only when their acceleration is greater than the one of gravity .so, the activation area can also be called as effective compression area.The canonical active region of vibration compacting load is shown in Fig.6.