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Online since: May 2012
Authors: Jian Gang Qiao, Jue Jie Li, Ya Qiong Wang
The mechanical properties analysis of rutting resistance road based on ANSYS
Junjie Li 1, a, Yaqiong Wang 2,b and Jiangang Qiao3,c
1 Langfang Highway Engineering Department, Langfang 065000, China
2 College of Civil Engineering, Hebei University of Technology, Tianjin 300401, China
3 College of Civil Engineering, Hebei University of Technology, Tianjin 300401, China
aqiaojg369@126.com, bjanelovejay@126.com, cqiaojg369@126.com
Keywords: asphalt pavement; shear stress; finite element method
Abstract.
Based on the constitutive model of asphalt mixture, the paper analyzes mechanical properties of modulus, shear force and peak deflection value for different asphalt surface course after adding the rutting agent using the finite element method.
Finite Element Modeling The paper analyzes multi-layer pavement structure, assumes the material has linear elastic properties and uses the finite element analysis software ANSYS 9.0 to model.
The underside of base (subbase) is generally tensile stress which is affected by the relative stiffness and thickness of base.
Summary Based on constitutive model of visco-elastic asphalt mixture, the paper analyzes the surface layer mechanical properties after adding Ranspunrie under the standard axial loading using ANSYS software.
Based on the constitutive model of asphalt mixture, the paper analyzes mechanical properties of modulus, shear force and peak deflection value for different asphalt surface course after adding the rutting agent using the finite element method.
Finite Element Modeling The paper analyzes multi-layer pavement structure, assumes the material has linear elastic properties and uses the finite element analysis software ANSYS 9.0 to model.
The underside of base (subbase) is generally tensile stress which is affected by the relative stiffness and thickness of base.
Summary Based on constitutive model of visco-elastic asphalt mixture, the paper analyzes the surface layer mechanical properties after adding Ranspunrie under the standard axial loading using ANSYS software.
Online since: December 2013
Authors: Andanastuti Muchtar, C.Y. Tan, Masfueh Razali, Chee Huan Leong
This phenomenon has become a major concern, because this process modifies the physical and chemical properties of HA in biomedical applications, thereby affecting the performance of HA as an implant material [11, 12].
This reaction is important in the resulting mechanical properties, chemical activity, and stability of HA within living organisms [12].
Hampshire, Mechanical properties of hydroxyapatite–zirconia compacts sintered by two different sintering methods, J.
Gibson, The effect of low levels of zirconia addition on the mechanical properties of hydroxyapatite, J. of Mater.
Sadrnezhaad, Effect of a novel sintering process on mechanical properties of hydroxyapatite ceramics, J. of Alloys and Compounds. 471(1–2) (2009) 180-184
This reaction is important in the resulting mechanical properties, chemical activity, and stability of HA within living organisms [12].
Hampshire, Mechanical properties of hydroxyapatite–zirconia compacts sintered by two different sintering methods, J.
Gibson, The effect of low levels of zirconia addition on the mechanical properties of hydroxyapatite, J. of Mater.
Sadrnezhaad, Effect of a novel sintering process on mechanical properties of hydroxyapatite ceramics, J. of Alloys and Compounds. 471(1–2) (2009) 180-184
Online since: January 2014
Authors: Wojciech Napadłek
Influence Environment and Parameters Ablative Laser Texturing
on Selected Properties Surface Layer Steel 100CrMnSi6-4
NAPADŁEK Wojciech
Military University of Technology, faculty of Mechanical Engineering,
Institute of Motor Vehicles and Transportation,
Gen.
These interactions can be considered separately from the physical properties of the lubricant (medium) and slot limiting surfaces (i.e. viscosity, wettability), as well as kinematical and dynamical relations between these factors.
Depending on the factors listed above, one can assume that these interactions may be advantageous or disadvantageous in the frictional resistance minimizing in the slide and rolling bearings slots.
In the tribological wear processes mass and structure (stereometry) changes, as well as physical properties of the co-working surface layers take place.
Napadłek, Influence of the laser hardening on the selected properties of steel.
These interactions can be considered separately from the physical properties of the lubricant (medium) and slot limiting surfaces (i.e. viscosity, wettability), as well as kinematical and dynamical relations between these factors.
Depending on the factors listed above, one can assume that these interactions may be advantageous or disadvantageous in the frictional resistance minimizing in the slide and rolling bearings slots.
In the tribological wear processes mass and structure (stereometry) changes, as well as physical properties of the co-working surface layers take place.
Napadłek, Influence of the laser hardening on the selected properties of steel.
Online since: June 2014
Authors: Xin Hua Zhou, Ke Xu, Qing Jie Qi, Xian Wu
Based on the fuzzy clustering analysis factors affecting the degree of difficulty of coal seam water infusion in practical engineering have been screened out and the model of it also has been founded in the test.
Factors affecting the degree of difficulty of coal seam water infusion The degree of difficulty of coal seam water infusion is also the degree of difficulty of infiltrating coal seam that water can easy get into or out of coal’s cracks and porosities.
The two main factors affecting the degree of difficulty of coal seam water infusion are geological conditions where the coal lays and its physical and mechanical properties [4].
It’s an important parameter reflecting coal seam physical and mechanical properties.
(1) Select main factors affecting the difficulty of coal water injection as the description of maternal sample index in each maternal sample.
Factors affecting the degree of difficulty of coal seam water infusion The degree of difficulty of coal seam water infusion is also the degree of difficulty of infiltrating coal seam that water can easy get into or out of coal’s cracks and porosities.
The two main factors affecting the degree of difficulty of coal seam water infusion are geological conditions where the coal lays and its physical and mechanical properties [4].
It’s an important parameter reflecting coal seam physical and mechanical properties.
(1) Select main factors affecting the difficulty of coal water injection as the description of maternal sample index in each maternal sample.
Online since: December 2016
Authors: Radka Pernicová, Daniel Dobiáš
Due to the effect of these processes, gradual disintegration of the hardened cement with consequent loss of mechanical properties occurs.
This rate is dependent upon several factors, their effect is firstly due to the properties of the concrete and the character of the structure, secondly to the type and conditions of the aggressive environment influence [5].
As factors influencing significantly the rate of corrosion, firstly composition, properties and structure of the hardened cement paste in concrete, a total porosity of concrete and its character, size, state, and properties of the contact surface of the concrete with aggressive solution can be noted [6].
Even permeability of surrounding environment, the rate of the solution movements, the pressure of the affecting solution, its temperature and the interaction of some physical and mechanical factors also significantly apply [7].
Basic Physical Properties.
This rate is dependent upon several factors, their effect is firstly due to the properties of the concrete and the character of the structure, secondly to the type and conditions of the aggressive environment influence [5].
As factors influencing significantly the rate of corrosion, firstly composition, properties and structure of the hardened cement paste in concrete, a total porosity of concrete and its character, size, state, and properties of the contact surface of the concrete with aggressive solution can be noted [6].
Even permeability of surrounding environment, the rate of the solution movements, the pressure of the affecting solution, its temperature and the interaction of some physical and mechanical factors also significantly apply [7].
Basic Physical Properties.
Online since: July 2013
Authors: Qing Dun Zeng, Jing Ren Deng
Optimization Design of Transmission Gears Considering the Noise Factors on the Basis of Weighting Method
Qing Dun Zeng1,a and Jing Ren Deng1,b
1School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China
aemqdzeng@scut.edu.cn, bduenfei@live.cn
Keywords: Gear, Weighting method, Noise, Optimization design.
Most important of all, good mechanical property of gears is a fundamental guarantee to the safe operation of machines.
If the noise of machine is loud, this means that the mechanical design is not good enough.
Although the stress in tooth roots after optimization has increased a little, it doesn’t affect the total safety.
The results show that spiral bevel gears of smaller volume, higher property and lower nose can be designed by using the present optimization method.
Most important of all, good mechanical property of gears is a fundamental guarantee to the safe operation of machines.
If the noise of machine is loud, this means that the mechanical design is not good enough.
Although the stress in tooth roots after optimization has increased a little, it doesn’t affect the total safety.
The results show that spiral bevel gears of smaller volume, higher property and lower nose can be designed by using the present optimization method.
Online since: September 2024
Authors: Ghizlane El Hajoui, Imad Manssouri, Tajeddine Manssouri, Hassane Sahbi, Houssame Limami
The researchers noted that differences in time lag were affected by factors such as heat capacity, solar irradiation, and ambient temperature.
Lu et al. [12] investigated the impact of various factors on wall thermal performance indicators, the decrement factor, and phase shift.
Wastewater treatment plant sludge properties [17].
Time lag and decrement factor were analyzed through simulation to understand the delay in heat penetration through the specimens, affecting the internal comfort temperature as a result.
Accessed 30 Jun 2023 [19] Rabie GM, El-Halim HA, Rozaik EH (2019) Influence of using dry and wet wastewater sludge in concrete mix on its physical and mechanical properties.
Lu et al. [12] investigated the impact of various factors on wall thermal performance indicators, the decrement factor, and phase shift.
Wastewater treatment plant sludge properties [17].
Time lag and decrement factor were analyzed through simulation to understand the delay in heat penetration through the specimens, affecting the internal comfort temperature as a result.
Accessed 30 Jun 2023 [19] Rabie GM, El-Halim HA, Rozaik EH (2019) Influence of using dry and wet wastewater sludge in concrete mix on its physical and mechanical properties.
Online since: May 2014
Authors: Mona Isa, Ibrahim Sipan, Megat Mohamed Ghazali, Ting Kien Hwa, Jibril D. Jibril
Introduction
Green attributes for office properties cover a wide scope of green characteristics that produce a high performance building in terms of resources and water efficiency, indoor environmental quality and building materials and low impact to environment.
This situation can be attributed to the fact that green office buildings are new, and as such, comparisons on the capital value and rate of return from these properties are limited.
Among the factors contributing to this difference is the combination of design and green features that comfortably blend with the environment.
This applies to the basic principles of investment, that cost reduction will directly affect the returns.
Heb, et al., "Responsible Property Investing in Canada: Factoring both environment and social impacts in Canadian Real Estate Market," Journal of Business Ethics, vol. 92, pp. 99-115, 2010
This situation can be attributed to the fact that green office buildings are new, and as such, comparisons on the capital value and rate of return from these properties are limited.
Among the factors contributing to this difference is the combination of design and green features that comfortably blend with the environment.
This applies to the basic principles of investment, that cost reduction will directly affect the returns.
Heb, et al., "Responsible Property Investing in Canada: Factoring both environment and social impacts in Canadian Real Estate Market," Journal of Business Ethics, vol. 92, pp. 99-115, 2010
Online since: January 2016
Authors: Ridho Bayu Aji, Andri Kusbiantoro, Siew Choo Chin, Norbaizurah Rahman
This study experimentally examines the effect of PVA (poly ethylene vinyl acetate) as a self-healing agent on the mechanical properties of geopolymer mortar after 24 hours curing in various temperatures.
Compressive strength and porosity tests were conducted to provide fundamental information on the hardened properties of geopolymer mortar.
Based on the results, 90ºC heat curing showed higher improvement on compressive strength properties than other specimens.
Microcracks resulted from drying shrinkage will be interconnected via micro pores which affecting the structural performance of hardened geopolymer binder.
However, the microbial precipitation depends on several factors such as pH, the concentration of calcium ions, the concentration of dissolved inorganic carbon and the presence of nucleation sites.
Compressive strength and porosity tests were conducted to provide fundamental information on the hardened properties of geopolymer mortar.
Based on the results, 90ºC heat curing showed higher improvement on compressive strength properties than other specimens.
Microcracks resulted from drying shrinkage will be interconnected via micro pores which affecting the structural performance of hardened geopolymer binder.
However, the microbial precipitation depends on several factors such as pH, the concentration of calcium ions, the concentration of dissolved inorganic carbon and the presence of nucleation sites.
Online since: November 2013
Authors: Jin Li Choon, Chang Jiang Wang, Kevin Kibble
The factors considered in this paper include hole shape, number, size and location.
Stress values, effects of each factor and interactions between factors are discussed in the paper.
Porosity affects the mechanical properties, for example Young's modulus drastically decreases with an increase in porosity.
Nakajima, Investigation of the mechanical properties of lotus-type porous carbon steel made by Continuous Zone Melting Technique, Mat.
Lucas, Mechanical properties of plant underground storage organs and implications for dietary models of early hominines, Evol Biol, 35 (2008) 159-175
Stress values, effects of each factor and interactions between factors are discussed in the paper.
Porosity affects the mechanical properties, for example Young's modulus drastically decreases with an increase in porosity.
Nakajima, Investigation of the mechanical properties of lotus-type porous carbon steel made by Continuous Zone Melting Technique, Mat.
Lucas, Mechanical properties of plant underground storage organs and implications for dietary models of early hominines, Evol Biol, 35 (2008) 159-175