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Online since: September 2013
Authors: M. Mongkolwongrojn, J. Panichakorn, S. Supawanich, S. Chutima
However, the study of flexibility and deformation behaviors under various conditions is crucial due to its environmental dependent properties.
Tensile strength and modulus were affected notably.
Elastic and viscoelastic properties of materials were used for comparison purpose.
For UHMWPE, those properties from B.
Lobo : Mechanical and Viscoelastic Properties of UHMWPE for IN-VIVO Product Development, DatapointLabs, Ithaca, New York, USA [3] D.
Tensile strength and modulus were affected notably.
Elastic and viscoelastic properties of materials were used for comparison purpose.
For UHMWPE, those properties from B.
Lobo : Mechanical and Viscoelastic Properties of UHMWPE for IN-VIVO Product Development, DatapointLabs, Ithaca, New York, USA [3] D.
Online since: July 2003
Authors: Alessandro de Stefano, Dionisio Bernal
This paper presents a
discussion on 3 topics that are germane to damage diagnostics in output only systems, namely: 1)
the usual assumption of stationarity of the input in the identification 2) the computation of proper
scaling factors for the identified modes and 3) the establishment of a map between changes in
synthesized flexibility matrices and spatial location of damage.
The approach presented here, therefore, is based on a perturbation to the mass properties.
This section does not offer conclusive statements regarding the accuracy of the formulation presented because to do so requires a study where all the factors that affect the error are considered.
Percent error in modal scaling constant computed with eqs.12 and 13 for a 10-dof shear beam with uniform properties (the perturbation is two equal added masses at dof 6 and 10, the magnitude of the perturbation is variable).
"Sensitivity-based operational mode shape normalization", Mechanical Systems and Signal Proc., Vol.16 (5) pp.757767
The approach presented here, therefore, is based on a perturbation to the mass properties.
This section does not offer conclusive statements regarding the accuracy of the formulation presented because to do so requires a study where all the factors that affect the error are considered.
Percent error in modal scaling constant computed with eqs.12 and 13 for a 10-dof shear beam with uniform properties (the perturbation is two equal added masses at dof 6 and 10, the magnitude of the perturbation is variable).
"Sensitivity-based operational mode shape normalization", Mechanical Systems and Signal Proc., Vol.16 (5) pp.757767
Online since: September 2013
Authors: Radim Čajka, Kamil Burkovič
These ensure interaction between the two parts of the cross section, transfer longitudinal shear forces and affect stiffness and bearing capacity of the coupled structure depending on the distance of the supports [10].
With regard to the greater dispersion of mechanical-physical properties of elements with higher age, it is recommended to perform statistical analysis [4].
U1 22590, Industrial Property Office, Czech Republic, Prague, August 2011 [2] R.
Mencl: Estimation of properties of materials for compound wood – timber ceilings (2007).
Sandanus: Parametric study of the factors affecting the resistance of a composite timber-concrete cross-section (2007).
With regard to the greater dispersion of mechanical-physical properties of elements with higher age, it is recommended to perform statistical analysis [4].
U1 22590, Industrial Property Office, Czech Republic, Prague, August 2011 [2] R.
Mencl: Estimation of properties of materials for compound wood – timber ceilings (2007).
Sandanus: Parametric study of the factors affecting the resistance of a composite timber-concrete cross-section (2007).
Online since: December 2012
Authors: Bing Yan Jiang, Chun Peng Chu, Lei Huang, Zhang Wang
Surface cleanliness mainly affects the microscopic surface quality.
The material properties are shown in Table 1.
Table 1 PMMA Material properties property Density Elastic modulus [Gpa] Poisson's ratio Thermal conductivity[W/m-K] Specific heat [J/Kg-K] Thermal expansion coefficient[1/k] Value 1.19 2.74 0.355 0.2 1500 7×10-5 Boundary Conditions.
The bottom of the microchannel is not directly affected by the pressure, in order to maintain the original shape, resulting in upward deformation.
Friction factors in smooth trapezoidal silicon microchannels with different aspect ratios [J].
The material properties are shown in Table 1.
Table 1 PMMA Material properties property Density Elastic modulus [Gpa] Poisson's ratio Thermal conductivity[W/m-K] Specific heat [J/Kg-K] Thermal expansion coefficient[1/k] Value 1.19 2.74 0.355 0.2 1500 7×10-5 Boundary Conditions.
The bottom of the microchannel is not directly affected by the pressure, in order to maintain the original shape, resulting in upward deformation.
Friction factors in smooth trapezoidal silicon microchannels with different aspect ratios [J].
Online since: June 2020
Authors: Abdul Rahim Bahari, Mohd Azmi Yunus, Muhamad Norhisham Abdul Rani, Wan Imaan Izhan Wan Iskandar Mirza, Mohd Azam Shah Aziz Shah
Several factors that influence the simulation include train speed, subgrade stiffness and irregularity angles of track transition as well as the transition pattern.
The mass, spring and damper elements represent the masses, stiffness properties and damping properties of hard and soft tissues.
The modal properties are formulated to derive the physical parameters of the model.
Table 1 shows the properties of the rectangular plate used in the experimental modal analysis.
The properties of the spring is listed in Table 2.
The mass, spring and damper elements represent the masses, stiffness properties and damping properties of hard and soft tissues.
The modal properties are formulated to derive the physical parameters of the model.
Table 1 shows the properties of the rectangular plate used in the experimental modal analysis.
The properties of the spring is listed in Table 2.
Online since: July 2012
Authors: Omidreza Sadaatian, Norasikin A. Ludin, M. Reza Faraji Zonooz, K. Sopian, Nilofar Asim
Crystallinity:
Since the physical and chemical properties of materials depend on the crystalline structure of their elements, determining of crystallinity is important characteristic.
Density: Density could affect the desiccant performance.
Differential scanning calorimetry can be used to measure the number of characteristic properties of a sample.
Specific heat capacity Specific heat capacities are important factors that assist the designers to design reactors and cooling systems.
Ozdemir, Biological, physical and mechanical properties of particleboard manufactured from waste tea leaves, International Biodeterioration & Biodegradation, 41 (1998) 75-84
Density: Density could affect the desiccant performance.
Differential scanning calorimetry can be used to measure the number of characteristic properties of a sample.
Specific heat capacity Specific heat capacities are important factors that assist the designers to design reactors and cooling systems.
Ozdemir, Biological, physical and mechanical properties of particleboard manufactured from waste tea leaves, International Biodeterioration & Biodegradation, 41 (1998) 75-84
Online since: November 2013
Authors: Breixo Gómez Meijide, Ana M. Rodríguez Pasandín, Ignacio Pérez Pérez Pérez
Since moisture damage is one of the most important factors that contribute to the premature deterioration of flexible pavements [17], the aim of this investigation is to improve the water resistance of HMA made with RCA.
Arm, Self-cementing properties of crushed demolished concrete in unbound layers: results from triaxial tests and field tests, Waste Management 21 (2001) 235-239
You, The mechanical properties of asphalt mixtures with recycled concrete aggregates, Constr Build Mater 24 (2010) 340-345
Mohajerani, Effects of recycled concrete aggregates on properties of asphalt concrete, ResourConservRecy.
Taibo, Mechanical properties of hot mix asphalt made with recycled aggregates from reclaimed construction and demolition debris, Mater Construcc 57-285 (2007) 17 – 29
Arm, Self-cementing properties of crushed demolished concrete in unbound layers: results from triaxial tests and field tests, Waste Management 21 (2001) 235-239
You, The mechanical properties of asphalt mixtures with recycled concrete aggregates, Constr Build Mater 24 (2010) 340-345
Mohajerani, Effects of recycled concrete aggregates on properties of asphalt concrete, ResourConservRecy.
Taibo, Mechanical properties of hot mix asphalt made with recycled aggregates from reclaimed construction and demolition debris, Mater Construcc 57-285 (2007) 17 – 29
Online since: August 2014
Authors: Jarosław Zubrzycki, Natalia Smidova
Produced synovial fluid may adjust their viscosity properties to the situation, which cannot any lubricant or oil produced artificially by man.
Created three-dimensional models can be exported to many engineering programs in compliance with all dimensions and material properties.
In the industry, this program is used to resolve issues related to the mechanics of solids and fluids, on the strength of machines and structures, taking into account many factors such as load, temperature, electrical conductivity, etc.
Table 1. presents selected physico-chemical properties of the material.
The next step is the selection of appropriate biomaterials, analysis of the mechanical properties of materials and the creation of models in the Abaqus software.
Created three-dimensional models can be exported to many engineering programs in compliance with all dimensions and material properties.
In the industry, this program is used to resolve issues related to the mechanics of solids and fluids, on the strength of machines and structures, taking into account many factors such as load, temperature, electrical conductivity, etc.
Table 1. presents selected physico-chemical properties of the material.
The next step is the selection of appropriate biomaterials, analysis of the mechanical properties of materials and the creation of models in the Abaqus software.
Online since: July 2014
Authors: Sibakanta Sahu, Swarup Kumar Nayak, Saipad Sahu, Pallavi Chaudhury
The values of these parameters significantly affect such machining outputs as material removal rate.
A transient thermal analysis assuming a Gaussian distribution heat source with temperature-dependent material properties has been used to investigate the temperature distribution.
The theory is still under research for changes of material properties in micro levels and metallurgical transformation due to the high thermal energy.
The approximate temperature-dependent material properties of En-19 tool steel, which are given to ANSYS modeller, are taken from [18].
For developing the model various important process parameters are taken into account which includes pulse on/off time, material properties, shape and size of heat source and heat energy given as input to the work piece.
A transient thermal analysis assuming a Gaussian distribution heat source with temperature-dependent material properties has been used to investigate the temperature distribution.
The theory is still under research for changes of material properties in micro levels and metallurgical transformation due to the high thermal energy.
The approximate temperature-dependent material properties of En-19 tool steel, which are given to ANSYS modeller, are taken from [18].
For developing the model various important process parameters are taken into account which includes pulse on/off time, material properties, shape and size of heat source and heat energy given as input to the work piece.
Online since: June 2011
Authors: Krzysztof Jan Kurzydlowski, J. Bieliński, Anna Boczkowska, R. Kozera, A. Broda
INTRODUCTION
The crucial factor that assures the strength of composites is a good interface between fibres and the matrix [1].
Improper conditions of annealing in air can cause the oxidation of carbon fibres and a decrease in the mechanical properties.
The measurements can be affected by absorption of moisture on the surface of the fibres or some impurities, which makes precise measurements difficult.
Annealing at 600oC for only 0.5 h led to a greater degradation of the fibre surface (Fig. 3d), which affected the mass loss results.
As it was found earlier, improper conditions of annealing in air can cause oxidation of the carbon fibres and a decrease in the mechanical properties Metallisation process The metallisation process for carbon fibres in roving samples and 2D and 3D woven fabrics after annealing at 400-500oC in air was performed.
Improper conditions of annealing in air can cause the oxidation of carbon fibres and a decrease in the mechanical properties.
The measurements can be affected by absorption of moisture on the surface of the fibres or some impurities, which makes precise measurements difficult.
Annealing at 600oC for only 0.5 h led to a greater degradation of the fibre surface (Fig. 3d), which affected the mass loss results.
As it was found earlier, improper conditions of annealing in air can cause oxidation of the carbon fibres and a decrease in the mechanical properties Metallisation process The metallisation process for carbon fibres in roving samples and 2D and 3D woven fabrics after annealing at 400-500oC in air was performed.