Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: July 2014
Authors: Li Ya Su
Mechanics analysis of flexible base Pavement Structure
Liya Su
Architecture and Civil Engineering School, Inner Mongolia University of Science and technology, Baotou, 014010, China
suliya1@.imust.cn
Keyword: Asphalt pavement; Flexible base; Elastic modulus; Reasonable thickness
Abstract.With the rapid development of traffic cause in our country, the operating requirement of driving load factors to pavement structure become higher and higher.
Fig.1 A typical flexible base asphalt pavement structure In order to apply the above calculation model and finite element method to analyze the force mechanism of flexible base asphalt roadbed by ANSYS, the material properties and the structure characteristics of the model for the following assumptions: the layers are continuous, completely elastic, homogeneous and isotropic; the next layer is infinite in the horizontal direction and vertical direction; layers contact condition for completely continuous; and the weight of each layer was Ignored[4].
Mechanical effect of the basic thickness for pavement structure Changing the flexible base thickness to study the value of deflection and stress under the condition of the elastic modulus unchanged, the result as shown in Tab.2,Fig.5 and Fig.6.
In order to make the large deformation of pavement structure was not produced , the use of materials need have enough modulus.Because the changes of base modulus can affect the tensile stress at the bottom of each layer, the increased of base modulus will make tensile stress at the bottom of base layer increase.
References [1] Huan WANG.Analysis on structure mechanical characteristics of the flexible base asphalt pavement [D].Wuhan University of Technology,2010.06
Fig.1 A typical flexible base asphalt pavement structure In order to apply the above calculation model and finite element method to analyze the force mechanism of flexible base asphalt roadbed by ANSYS, the material properties and the structure characteristics of the model for the following assumptions: the layers are continuous, completely elastic, homogeneous and isotropic; the next layer is infinite in the horizontal direction and vertical direction; layers contact condition for completely continuous; and the weight of each layer was Ignored[4].
Mechanical effect of the basic thickness for pavement structure Changing the flexible base thickness to study the value of deflection and stress under the condition of the elastic modulus unchanged, the result as shown in Tab.2,Fig.5 and Fig.6.
In order to make the large deformation of pavement structure was not produced , the use of materials need have enough modulus.Because the changes of base modulus can affect the tensile stress at the bottom of each layer, the increased of base modulus will make tensile stress at the bottom of base layer increase.
References [1] Huan WANG.Analysis on structure mechanical characteristics of the flexible base asphalt pavement [D].Wuhan University of Technology,2010.06
Online since: June 2011
Authors: Zhao Yong Ding, Bao Min Sun, Xiao Lian Ding, Bin Jia, Yong Hong Guo
Irregular tubes maybe affect by temperature and other factors.
By virtue of their curved graphite structure, small diameter, high aspect ratio, and electronic structure, they possess many appealing properties.
These methods are mature, and have gained high properties CNTs.
The asterisk marked tubes are quite irregular, and their synthesis maybe affect by pulsatile flame and other factors.
Irregular tubes maybe affect by temperature and other factors.
By virtue of their curved graphite structure, small diameter, high aspect ratio, and electronic structure, they possess many appealing properties.
These methods are mature, and have gained high properties CNTs.
The asterisk marked tubes are quite irregular, and their synthesis maybe affect by pulsatile flame and other factors.
Irregular tubes maybe affect by temperature and other factors.
Online since: October 2011
Authors: Dian Bo Jia, Tie Jun Chen, Hai Ying Cao
Based on the necessary relationship between the strength and the water content of unsaturated soil, combined with real foundation pit in unsaturated soil, firstly, physical and mechanical parameters of soil samples with different water content are obtained through triaxial test.
Summary of FEM software At present, there are more and more foundation pit engineerings being simulated and analyzed by using FEM, because many influencing factors can be considered in this method simultaneously[3].
Due to geometric model is of symmetry properties, one-half of model is selected to perform numerical analyses, in which the width is 70m, and the depth is 55m, thereinto, the width and depth of foundation pit is respectively 25m and 16m.
Obviously, ground deformation is affected by the variation of water content largely.
Obviously, support pile’ deformation is affected by the variation of water content severely.
Summary of FEM software At present, there are more and more foundation pit engineerings being simulated and analyzed by using FEM, because many influencing factors can be considered in this method simultaneously[3].
Due to geometric model is of symmetry properties, one-half of model is selected to perform numerical analyses, in which the width is 70m, and the depth is 55m, thereinto, the width and depth of foundation pit is respectively 25m and 16m.
Obviously, ground deformation is affected by the variation of water content largely.
Obviously, support pile’ deformation is affected by the variation of water content severely.
Online since: February 2013
Authors: Yoo Taek Kim, Jun Young Park
The carbonation process under the super critical condition was performed to enhance the mechanical property of specimens by filling the voids and cracks existing inside cement specimen with CaCO3 reactants.
This type of fly ash classified as ASTM C-type fly ash cannot be recycled and simply reclaimed because too much CaO component may affect a bad effect on the final property of eco-materials by its expansibility [1-3].
The carbonation process under the super critical condition was performed for the control of expansion characteristics of CaO component in fly ash which usually affects bad effect on mechanical strength of specimen.
Mixture ratio and experimental factors are shown in Table 2.
The mechanical property was analyzed by compressive strength and specific gravity test.
This type of fly ash classified as ASTM C-type fly ash cannot be recycled and simply reclaimed because too much CaO component may affect a bad effect on the final property of eco-materials by its expansibility [1-3].
The carbonation process under the super critical condition was performed for the control of expansion characteristics of CaO component in fly ash which usually affects bad effect on mechanical strength of specimen.
Mixture ratio and experimental factors are shown in Table 2.
The mechanical property was analyzed by compressive strength and specific gravity test.
Online since: February 2024
Authors: Stepan Mudry, Yuriy Kulyk, Ihor Shtablavyi, Yulia Nykyruy
Study of the Mechanical Properties of Single-Layered and BilayeredCoCrFeSi Ribbons Using Quasistatic and Dynamic Nanoindentation Tests.
Understanding crystallization kinetics and factors that induce the process makes one able to predict the thermal stability and determine the operating conditions of the material.
The fcc phase stands as another microstructure parameter affecting the mechanical performance of the material, in addition to typical parameters such as grain size, dislocation density, crystallographic texture, etc. [[] Knapek M, Minárik P, Dobroň P, Šmilauerová J, Celis M M, Hug E, Chmelík F (2020) The Effect of Different Thermal Treatment on the Allotropic fcc↔hcp Transformation and Compression Behavior of Polycrystalline Cobalt.
Magnetic properties and nanocrystallization process in Co–(Me)–Si–B amorphous ribbons.
Main factors determining this process most probably are two tendencies: preferred interaction between Co and B -atoms and the formation of Co-based clusters due to magnetic interaction.
Understanding crystallization kinetics and factors that induce the process makes one able to predict the thermal stability and determine the operating conditions of the material.
The fcc phase stands as another microstructure parameter affecting the mechanical performance of the material, in addition to typical parameters such as grain size, dislocation density, crystallographic texture, etc. [[] Knapek M, Minárik P, Dobroň P, Šmilauerová J, Celis M M, Hug E, Chmelík F (2020) The Effect of Different Thermal Treatment on the Allotropic fcc↔hcp Transformation and Compression Behavior of Polycrystalline Cobalt.
Magnetic properties and nanocrystallization process in Co–(Me)–Si–B amorphous ribbons.
Main factors determining this process most probably are two tendencies: preferred interaction between Co and B -atoms and the formation of Co-based clusters due to magnetic interaction.
Online since: November 2010
Authors: Bing Hai Lv, Dun Liu, Qian Fa Deng, Wei Feng Yao, Ju Long Yuan
Ball bearings’ qualifications , such as kinematic accuracy, noise and life are directly affected by their precision (surface roundness, sphericity error, ball diameter variation) and then their precision affects performance of instruments and apparatus.
The simulation of ADAMS can be used to predict the performance, range of movement,collision detection ,peak load and inputting load of computing finite element in a mechanical system [6].
Material parameters are defined by their properties.
In the simulation of ADAMS, it simulates as the machining process and considers affecting the lapping track factor, such as properties of materials, pressure and so on.
The vibration of machine and unequal pressure also should be considered when the apparatus is operating .These factors have some impacts on lapping uniformity.
The simulation of ADAMS can be used to predict the performance, range of movement,collision detection ,peak load and inputting load of computing finite element in a mechanical system [6].
Material parameters are defined by their properties.
In the simulation of ADAMS, it simulates as the machining process and considers affecting the lapping track factor, such as properties of materials, pressure and so on.
The vibration of machine and unequal pressure also should be considered when the apparatus is operating .These factors have some impacts on lapping uniformity.
Online since: January 2018
Authors: Lenka Laiblová, Michal Ženíšek, Tomáš Vlach
This outstanding properties are given by the specific composition of UHPC, which is in many aspects similar to high performance concrete, but goes to greater extremes.
Preparation of Experiments This research focuses on possible mix design factors, which may negatively affect the risk of segregation.
For the sake of completeness, the chemical composition and physical properties these materials is presented (Table 1).
Chemical compositions and physical properties of the components.
Powers, Studies of the Physical Properties of Hardened Portland Cement Paste, Journal of the American Ceramic Society. 41 (1958) 1-6
Preparation of Experiments This research focuses on possible mix design factors, which may negatively affect the risk of segregation.
For the sake of completeness, the chemical composition and physical properties these materials is presented (Table 1).
Chemical compositions and physical properties of the components.
Powers, Studies of the Physical Properties of Hardened Portland Cement Paste, Journal of the American Ceramic Society. 41 (1958) 1-6
Online since: August 2018
Authors: Annalisa Lanza Volpe
Introduction
The idea of a building regulating the factors that affect human comfort has ancient origins.
Material properties may be a constant or may be a function of one or more independent variables, such as temperature.
One could think of façade that for example change their acoustic properties, when objects are passing that produce unwanted noise [26].
However the development of adaptive façades is complex and influenced by many factors.
It also discusses emerging technologies and advanced, describing their properties and applications.
Material properties may be a constant or may be a function of one or more independent variables, such as temperature.
One could think of façade that for example change their acoustic properties, when objects are passing that produce unwanted noise [26].
However the development of adaptive façades is complex and influenced by many factors.
It also discusses emerging technologies and advanced, describing their properties and applications.
Online since: June 2013
Authors: Mihaela Mosneagu, Raluca Nicoleta Darie, Sebastian Teodor Aradoaei, Romeo Cristian Ciobanu
The dielectric properties of composite material are affected by several factors, e.g. molecular chain arrangement, amorphous and crystalline phase fraction, molecular weight distribution and temperature.
The mechanical properties for studied blends are presented in Table 2.
Mechanical properties for studied blends.
The physical-mechanical properties and biodegradability of the biocomposites depend both on the filler type component introduced, as well as its proportion.
Cellulosic material impregnated with waxes, are used because of excellent dielectric properties.
The mechanical properties for studied blends are presented in Table 2.
Mechanical properties for studied blends.
The physical-mechanical properties and biodegradability of the biocomposites depend both on the filler type component introduced, as well as its proportion.
Cellulosic material impregnated with waxes, are used because of excellent dielectric properties.
Online since: November 2025
Authors: Holger Fricke, Khalil Nur Zalikha, Nurul Damia Senu
This approach facilitates a comprehensive and integrated understanding of how individual and combined factors affect the mechanical performance of adhesive joints.
Influence of Al2O3 nanoreinforcement on the adhesion and thermomechanical properties for epoxy adhesive.
Effect of alumina/graphene hybrid nano reinforcement to the adhesion and mechanical properties of adhesively bonded aluminum alloy with epoxy.
The influence of GNP on the mechanical and thermomechanical properties of epoxy adhesive: Pearson correlation matrix and heatmap application in data interpretation.
The Effects of Grit Size and Blasting Pressure on the Surface Properties of Grit Blasted Ti6Al4V Alloy.
Influence of Al2O3 nanoreinforcement on the adhesion and thermomechanical properties for epoxy adhesive.
Effect of alumina/graphene hybrid nano reinforcement to the adhesion and mechanical properties of adhesively bonded aluminum alloy with epoxy.
The influence of GNP on the mechanical and thermomechanical properties of epoxy adhesive: Pearson correlation matrix and heatmap application in data interpretation.
The Effects of Grit Size and Blasting Pressure on the Surface Properties of Grit Blasted Ti6Al4V Alloy.