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Online since: June 2018
Authors: Andrey Ripetskiy, Sergey Zelenov, Ekaterina Kuznetsova, Lev Rabinskiy
It was determined that the convergence is affected by numerous factors: temperature in the machine chamber, material properties, heat exchange and the processes running into the chamber of the certain machines.
The convergence is affected by numerous factors: temperature in the machine chamber, material properties, heat exchange and the processes running into the chambers of the certain machines.
The question of the validity of the model for the calculation of the thermal state, exertion and deformation stays one of the most challenging, which is confirmed by the differences in the geometry and in the properties of the items, printed with the different machines but from the same Electronic Model.
Ploshikhin, Thermo-mechanical simulation of additive layer manufacturing of titanium aerospace structures, Proceedings of the LightMAT Conference, September 3, 2013 – September 5, 2013, Bremen, Germany, 2013
Reutzel, Thermo-mechanical model development and validation of directed energy deposition additive manufacturing of Ti-6Al-4V, Additive Manufacturing, 5 (2015) 9–19
The convergence is affected by numerous factors: temperature in the machine chamber, material properties, heat exchange and the processes running into the chambers of the certain machines.
The question of the validity of the model for the calculation of the thermal state, exertion and deformation stays one of the most challenging, which is confirmed by the differences in the geometry and in the properties of the items, printed with the different machines but from the same Electronic Model.
Ploshikhin, Thermo-mechanical simulation of additive layer manufacturing of titanium aerospace structures, Proceedings of the LightMAT Conference, September 3, 2013 – September 5, 2013, Bremen, Germany, 2013
Reutzel, Thermo-mechanical model development and validation of directed energy deposition additive manufacturing of Ti-6Al-4V, Additive Manufacturing, 5 (2015) 9–19
Online since: May 2012
Authors: Yong Guo, Jing Jing Li, Da Gang Li
WPC siding would cause aging problems in alternating light and rain environment, which could cause some defects:fading, mechanical properties reducing, and affect appearance and durability finally[4].
In addition, water can aggravate surface fading of WPCs, so fading is caused by different environmental factors.
The effect of UV light and xenon lamp accelerated aging on mechanical properties of recycled milk-cartons/PE composite siding.
There are different study conclusions of the effect of UV light accelerated aging on mechanical properties of WPCs, Lundin [11]pointed out mechanical properties of WPC decreased most in the initial 1000h, while Starket al. thought mechanical properties reduced obviously in the later 1000h.
Effect of accelerated weathering on the physical and mechanical properties of natural-fiber.
In addition, water can aggravate surface fading of WPCs, so fading is caused by different environmental factors.
The effect of UV light and xenon lamp accelerated aging on mechanical properties of recycled milk-cartons/PE composite siding.
There are different study conclusions of the effect of UV light accelerated aging on mechanical properties of WPCs, Lundin [11]pointed out mechanical properties of WPC decreased most in the initial 1000h, while Starket al. thought mechanical properties reduced obviously in the later 1000h.
Effect of accelerated weathering on the physical and mechanical properties of natural-fiber.
Online since: November 2007
Authors: K. Watanabe, Mitsuharu Yamamoto, Kazuhito Fujiwara, Tetsuyuki Hiroe, Hidehiro Hata
Explosive driven rapid fracture in a structural body will be preceded by a compression
process, and the compression effects on mechanical properties of the materials are clearly important
to understand shock-induced failure such as spall or fragmentation phenomena.
Measured mechanical properties of the recovered specimens reveal remarkable changes from those of the virgin materials, giving some considerations on the dynamic fracture [2-4, 7] induced by shocks.
Mechanical Properties of Recovered Plates and Discussions Microhardness.
It is noticeable that this tendency almost corresponds with the data of Fig. 8, where the ratio of the products of fεσ ⋅2.0 in Eq. 4 of precompressed specimens to those for virgin materials are 63.9% (A2017), 84.6% (A2017/AT-attached) and 122.4% (304SS), although cylinder fragmentation phenomenon must be affected by some other factors.
Steinberg: Equation of State and Strength Properties of Selected Materials, LLNL Report UCRL-MA-106439, (1991)
Measured mechanical properties of the recovered specimens reveal remarkable changes from those of the virgin materials, giving some considerations on the dynamic fracture [2-4, 7] induced by shocks.
Mechanical Properties of Recovered Plates and Discussions Microhardness.
It is noticeable that this tendency almost corresponds with the data of Fig. 8, where the ratio of the products of fεσ ⋅2.0 in Eq. 4 of precompressed specimens to those for virgin materials are 63.9% (A2017), 84.6% (A2017/AT-attached) and 122.4% (304SS), although cylinder fragmentation phenomenon must be affected by some other factors.
Steinberg: Equation of State and Strength Properties of Selected Materials, LLNL Report UCRL-MA-106439, (1991)
Online since: August 2017
Authors: Oratai Jongprateep, Jednupong Palomas
It has been accepted that compositions and microstructures significantly affected dielectric properties of materials.
Such properties can be enhanced through doping and microstructural control.
Dielectric properties, specifically dielectric constant and loss factor, of the sintered samples were evaluated by impedance analyzer (HewlettPackard, 16451B) at the frequency ranging from 1 to 1000 MHz.
Lopez, Mechanical Properties and Phases Derived from TiO2 Nanopowder Inoculation in Low Carbon Steel Matrix, Materials Transactions. 54(10) (2013) 1869-1876
Waser, Electronic properties of grain boundaries in SrTiO3 and BaTiO3 ceramics.
Such properties can be enhanced through doping and microstructural control.
Dielectric properties, specifically dielectric constant and loss factor, of the sintered samples were evaluated by impedance analyzer (HewlettPackard, 16451B) at the frequency ranging from 1 to 1000 MHz.
Lopez, Mechanical Properties and Phases Derived from TiO2 Nanopowder Inoculation in Low Carbon Steel Matrix, Materials Transactions. 54(10) (2013) 1869-1876
Waser, Electronic properties of grain boundaries in SrTiO3 and BaTiO3 ceramics.
Online since: February 2019
Authors: S.B. Gamanyuk, N.A. Zyuban, Dmitry V. Rutsky
A mathematical modeling approach as well as experimental data analysis have made it possible to establish significant factors affecting the relative diameter of the axial porosity zone.
The improvement of the model obtained has enabled to establish that the axial porosity zone is primarily affected by the following factors: hot top size, slenderness ratio, the H/D ratio and insulation heat capacity.
All of the above methods reduce chemical and structural heterogeneity, provide a finer grain structure, improve the mechanical properties of the concast slab and rolled stock.
Light hatching indicates positive values of the factors; dark hatching corresponds to the negative values of the factors.
Results and Discussion Figure 1 shows that shrinkage cavity length is primarily affected by hot top volume, ingot geometry as well as insulation material properties.
The improvement of the model obtained has enabled to establish that the axial porosity zone is primarily affected by the following factors: hot top size, slenderness ratio, the H/D ratio and insulation heat capacity.
All of the above methods reduce chemical and structural heterogeneity, provide a finer grain structure, improve the mechanical properties of the concast slab and rolled stock.
Light hatching indicates positive values of the factors; dark hatching corresponds to the negative values of the factors.
Results and Discussion Figure 1 shows that shrinkage cavity length is primarily affected by hot top volume, ingot geometry as well as insulation material properties.
Online since: June 2011
Authors: Sasan Yazdania, Mir Nariman Yoozbashi
The microstructure and mechanical properties of the samples were evaluated by XRD, SEM, hardness and tensile tests.
The microstructure and mechanical properties of this new steel have been investigated.
Evaluation of Mechanical Properties.
Retained austenite carbon content increases its stability which causes the improvement of mechanical properties.
The microstructural characteristics including bainite plate thickness, the volume fraction of phases and retained austenite carbon content strongly influence the mechanical properties.
The microstructure and mechanical properties of this new steel have been investigated.
Evaluation of Mechanical Properties.
Retained austenite carbon content increases its stability which causes the improvement of mechanical properties.
The microstructural characteristics including bainite plate thickness, the volume fraction of phases and retained austenite carbon content strongly influence the mechanical properties.
Online since: July 2007
Authors: Soo Hyun Kim, Sang Heon Kim, Eun Na Chung, Jae Hyun Kwon, Jeong Woo Han, Young Gun Ko, Sung Sik Han, In Su Park
These factors about scaffolds can affect regeneration rate and
proliferation rate significantly depending on fabrication condition.
The mechanical properties were tested by Instron.
Therefore, the optimization of fiber thickness by controlling the gel concentration is a very important step because it affects the pore and mechanical properties of the scaffold.
Analysis on mechanical properties.
As a result, gel-spun scaffolds have good tissue in-growth ability and strong mechanical properties.
The mechanical properties were tested by Instron.
Therefore, the optimization of fiber thickness by controlling the gel concentration is a very important step because it affects the pore and mechanical properties of the scaffold.
Analysis on mechanical properties.
As a result, gel-spun scaffolds have good tissue in-growth ability and strong mechanical properties.
Online since: December 2011
Authors: Li Xing, Ge Ping Liu, Li Ming Ke, Chun Ping Huang, Xiao Song
The results shown that the vertical force experienced a steady process when tool was moving steadily in the workpiece; The vertical force in steady state was impacted by material, because the thermal and mechanical properties of different material were not same.
Workpiece was affected by heat and force during the friction stir welding.
The thermal and mechanical properties of material were the factors that affected the heat and force during welding, so as to affect the vertical force.
Fig. 3 Vertical forces in steady state welding different material Table 1 The average dates of vertical force welding different material Material Average force during steady welding Fa [KN] TC4 T2 LY12 8.40 7.35 3.10 Hardness of the material was the composite indicator of material elasticity, plasticity, strength, toughness and other mechanical properties.
Pin surface affected the average of vertical force acting on the material during the steady welding.
Workpiece was affected by heat and force during the friction stir welding.
The thermal and mechanical properties of material were the factors that affected the heat and force during welding, so as to affect the vertical force.
Fig. 3 Vertical forces in steady state welding different material Table 1 The average dates of vertical force welding different material Material Average force during steady welding Fa [KN] TC4 T2 LY12 8.40 7.35 3.10 Hardness of the material was the composite indicator of material elasticity, plasticity, strength, toughness and other mechanical properties.
Pin surface affected the average of vertical force acting on the material during the steady welding.
Online since: April 2016
Authors: Xiao Bo Zhang, Yu Liang Wu, Yi Ge
Results and discussion
Analysis of the morphology and mechanical properties.
Fig.6 The melt flow rate of different systems Dynamic mechanical properties of composites.
The present study analyzes the impact of carbon nanotubes DMTA added to move the mechanical properties of waterborne polyurethane analyzed.
DMTA and SEM as well as the analysis of the results of mechanical properties completely consistent.
Conclusions Elastomers and CaCO3 uniformly dispersed in the matrix, and has a strong interaction between the two-phase interface; join elastomers exhibit better mechanical properties, while improving the processing flow of the material; CaCO3 polymerization can join network structure becomes stronger, but also make the system viscosity increases affect the mechanical properties of materials; after adding elastomer and CaCO3, the system appeared low internal friction peak tanδ2 peak and peak shape widens, enhanced.
Fig.6 The melt flow rate of different systems Dynamic mechanical properties of composites.
The present study analyzes the impact of carbon nanotubes DMTA added to move the mechanical properties of waterborne polyurethane analyzed.
DMTA and SEM as well as the analysis of the results of mechanical properties completely consistent.
Conclusions Elastomers and CaCO3 uniformly dispersed in the matrix, and has a strong interaction between the two-phase interface; join elastomers exhibit better mechanical properties, while improving the processing flow of the material; CaCO3 polymerization can join network structure becomes stronger, but also make the system viscosity increases affect the mechanical properties of materials; after adding elastomer and CaCO3, the system appeared low internal friction peak tanδ2 peak and peak shape widens, enhanced.
Online since: August 2013
Authors: Han Jun, Yan He
This paper systematic analysis the factors which affect the feasibility of helicopter route from the point view of GIS.
The affecting factors will be divided into geographical and non-geographical influencing factors.
We can get various geographical factors which affect route planning from GIS, facilitate to analysis.
The non-geographic factors which can’t contain in the map of GIS, but could be load form database also are the important elements which affect helicopter flight.
The table 1 shows the factors which affect flight route planning.
The affecting factors will be divided into geographical and non-geographical influencing factors.
We can get various geographical factors which affect route planning from GIS, facilitate to analysis.
The non-geographic factors which can’t contain in the map of GIS, but could be load form database also are the important elements which affect helicopter flight.
The table 1 shows the factors which affect flight route planning.