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Online since: August 2009
Authors: Zhi Chao Huang, Qiu Hua Yao, Ning Jiang, Ze Jie Zhou
The results of experiment prove that the transition point of the cone-shaped head of the solid rivet, the size and position of groove affect directly the quality of riveting.
Blanking force is affected by many factors, such as the mechanical properties of materials, sheet thickness, the die-clearance, the velocity of punch and so on, but the most important factors are the sheet material and thickness.
The stress concentration appears around cracks from the numerical simulation, and the quality of riveting is affected.
Online since: February 2018
Authors: Guo Qiang Li, Su Wen Chen, Qing Liu, Meng Yang, Zhao Xin Hou
Displacement ductility factors are larger than 2.
For obtaining material properties of concrete, a total of 6 concrete cubes (150mm×150mm ×150mm) were tested according to Chinese Standard for Test Method of Mechanical Properties on Ordinary Concrete (GB/T50081-2002).
Mechanical properties of steel plates and steel bars are listed in Table 2.
The displacement ductility factors of both specimens are larger than 2, indicating that the columns have great ductility.
"Experimental study on hysteretic properties of SRC columns with high steel ratio." 
Online since: July 2013
Authors: Vladislav L. Bibik
The physical-mechanical properties of a cemented carbide depend on the properties of its components and technological accuracy.
The most important parameters affecting the properties are: the chemical composition of the binder, the internal stress values, and the alloy structure.
Research Methods and Results As temperature of the contact areas of the tool is the major factor influencing the cutting tool wear resistance, the thermophysical properties of the tool influencing this temperature will, thus, influence on that.
To estimate the degree of thermal diffusivity affect the cutting temperature we carried out computer modeling of the cutting tool heating and calculated the temperatures on its front and back surfaces for different thermophysical properties of the tool material.
The results of the modeling showed that the thermophysical properties of the tool material are closely related to the temperature of the tool contact areas.
Online since: March 2006
Authors: Indera Sadikin, Djoko Suharto
Stress intensity factors at the crack tip are calculated by crack closure technique.
These material properties are contained implicitly in the equation.
There are many uncertainties laid under its important input parameters such as material properties and environmental loading.
[2] Legowo, D: FEM Technique for Calculating Stress Intensity Factors (in Indonesian), Master Thesis, Mech.
Raju: Evaluation of Stress Intensity Factors Using General Finite Element Models, Fatigue and Fracture Mechanics, Vol. 29 (1998)
Online since: September 2016
Authors: Evgeny A. Trofimov, V.E. Eremyashev, T.O. Podbornykh
Introduction Fluctuations of the chemical composition of the initial melt and insertion of radioactive components significantly influence the structure and physical properties of formed glass and the composition of crystallizing phases during immobilization of radioactive waste in glassy matrix materials [1].
It defines need of purposeful introduction of additional components for the purpose of management of a final state and physical properties of these matrix materials.
The degree of polymerization of the anion significantly affects the final state of the cooled matrix material, and it in its turn affects it’s mechanical, chemical and hydrothermal stability during prolonged storage.
The factors influencing the occurrence of nepheline, aluminum-containing phase, negatively affecting the composition and properties of the material as a whole by reducing the proportion of Al2O3 and SiO2 in the formed glass have been determined.
Tang, Thermophysical Properties of Multiphase Borosilicate Glass-Ceramic Waste Forms, J.
Online since: July 2003
Authors: John R. Maguire
Material thickness and mechanical properties testing may be required at many locations or may be sufficient on a random sampling basis.
The site specific physical and chemical properties of seawater may also play an important role, and are likely to be of significance to the shipunloader, and also to the underlying jetty structure.
Strength and fatigue assessments, based on the corrosion affected geometry, and in-situ material properties, were to be carried out.
The ranking method chosen is a simple qualitative comparison using factors of 1 to 5 for each element.
The ranking of consequence uses the worst of each of these factors to derive the ranking.
Online since: October 2004
Authors: Xiao Qing Huang, Yi Ping Liu, Ling Ling Hu, Li Qun Tang
We usually describe the mechanic behaviors of aluminum foam by the relations between stress and strain, which are affected deeply by the foam's initial densities [1~3], and induce much difficulty to the studies on the mechanic properties of aluminum foam, such as the energy absorption capacity and the corresponded optimum design.
In this paper, we try to find a general description of mechanic properties for aluminum foam with various initial densities through comprehensive experiments.
Moreover, many of the mechanical properties of aluminum foam, such as Young's modulus, plastic-collapse strength and so on, are dominated by the initial density.
And other factors, such as initial density, geometry dimension and cell diameter, seem to have little influence on it.
Ashby: Cellular Solids: Structure and Properties (Cambridge University Press, United States 1988)
Online since: February 2008
Authors: Bong Ki Ryu, Young Seok Kim, Kyu Ho Lee, Tae Ho Kim, Young Joon Jung
Finally, we could achieve results which laser irradiation affect crystallization of glass by changing crystallinity between Tx and Tp.
As this reason, there are need to know how much samarium ion affect generating crystallization by heat processing in the glass.
Glass thermal properties were measured by differential thermal analysis (DTA) and thermo mechanical analysis (TMA) at a heating rate of 10 K/min.
Glass stability (∆T = Tg - Tx) is very important factor as well as laser power and laser irradiation time in laser induced crystallization, because it is a factor to determine the crystallization ability from glassy phase.
It is thought laser induced crystallization by samarium heat processing affect nucleation and crystal growth clearly.
Online since: December 2006
Authors: Dong Hyung Lee, Jung Won Seo, Seok Jin Kwon, Chan Woo Lee
Stone has reported that the formation of internal defect is the main factor of the impact load to the wheel not the roundness.
Mechanical Characteristics of Wheel Tread If the hardness is known, other physical features of the material can be known.
In addition, hardness needs to be measured to property where is severely exposed to heat or which materials are improperly used because it is related with properties of the material.
Conclusions The various factors to the damage to the HST power car wheel by metallurgical analysis, mechanical analysis and field test is investigated.
The main factors to the damage to wheel tread for HST power car are; 1) The fine cracks occurred by the plastic deformation, which is thought to affect the traction force. 2) The hot spot occurred by the brake block, which cause the frequent flat of the wheel tread. 3) The early reprofiling raised by the tread damage of the HST power car wheel is more affected by the flat resulted by the hot spot of the brake block than the fine crack initiation resulted from the plastic deformation.
Online since: November 2013
Authors: Zhi Guo Zhang, Peng Pan, Xiao Guang Xi
The engineering properties of the soils at the tunneling site are given in Table 1. 3D finite element numerical model A 3D finite element method combined with the soil consolidation theory and underground construction unloading theory is adopted based on a commercial finite element analysis program, as shown in Fig. 2.
Table 1 gives the mechanical parameters for the in situ soils.
Geotechnical properties of the soils Layer No.
It should be noted that, other factors, such as, train dynamic loading, surface vehicle loading, and adjacent construction vibration, can also affect the consolidation deformation of the existing structures.
Therefore, the completed numerical analysis considering the above-mentioned factors is still needed in order to simulate more realistic consolidation response mechanism of existing structures.
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