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Online since: February 2011
Authors: Hai Xia Bi, Ya Rui Zhang, Shi Jie Li, Jin He Liu
I load force with the experimental data provided by the VIMS laboratory, analyze the biomechanical properties of femur and investigate the influence of anteversion angle parameter on mechanical properties.
I load force with the experimental data provided by the VIMS laboratory, analyze the biomechanical properties of femur and investigate the influence of anteversion angle parameter on mechanical properties.
An important element of the study is the influence of anteversion angle parameters on femoral mechanical properties.
According to the difference from the actual human body, change the anteversion parameters, load forces and study the mechanical properties of femur under different femoral anteversion angle.
The conversion factors for the coordinate system provided by the VIMS system is:Uxx=-0.1993; Uxy=-0.976; Uxz=0.088; Uyx=0.9736; Uyy=-0.2074; Uyz=-0.0953; Uzx= 0.1112; Uzy=0.0667; Uzz=0.9916.
Online since: October 2013
Authors: Emil Udup, Claudiu Florinel Bîșu, Miron Zapciu
The thermal effect is one of important factors that affect the performance of machine tool systems.
This coupling manifests itself in the thermal expansion of components and the change of mechanical properties due to heat flow through the mechanical parts.
It is well known that bearings operate temperature depends on the following factors: operating speeds, applied load, bearing arrangement, housing design, environment around the spindle and the lubricant properties.
These factors affect both heat generation and heat transfer.
Physical properties of water Physical properties Value Unit Density 997 kg/m3 Specific heat capacity 4181.7 J/kg*K Ref.
Online since: February 2014
Authors: Xue Lin Li, Gui Yu Li, Xing Quan Li
It was also found that the curing conditions of making the composites do not have an obvious effect on the machinability, though the mechanical properties of the materials vary [3].I.
The experimental results indicate that the feed rate and the drill diameter are the most significant factors affecting the thrust force, while the feed rate and spindle speed contribute the most to the surface roughness [5].
Therefore, the experimental scheme was designed with two factors and four levels as shown in Table 1.
Machaly, Factors affecting the machinability of GFR/epoxy composites.
I: Some inherent properties of parameter variation.
Online since: November 2006
Authors: Shan Suo Zheng, Guo Zhuan Deng, Wei Tian
A calculating method of fracture toughness of bond interface is provided, and the main parameters significantly affecting the fracture toughness are discussed quantitatively.
Some parameters of mechanical behaviors of bond interface can be determined by weighing damage factors from initial state to final state because the mechanical behaviors of bond interface evolve from initial state to final state [2].
The constants of material properties in Eq. 1 should be those of the bond interface.
The micro-cracks can influence fracture properties of bond interface [1].
The influence of micro-crack fracture process zone of crack point in bond interface on bond-slip fracture properties need to be considered in bond-slip failure.
Online since: January 2012
Authors: P. K. Ghosh, Ravi Ranjan Kumar
The base metal and weld metal were characterised in terms of their metallurgical, mechanical and fracture toughness properties by following ASTM procedures.
Pulse current gas metal arc welding (P-GMAW) is used more effectively without affecting the weld quality.
The weld joint has different microstructure namely dendrite, reheat refined region, heat affected zone and base metal, this has wide variation in mechanical and metallurgical properties of the weld joints.
The present study has been focused on the characterisation of weld joint of 20MnMoNi55 HSLA steel plate, in terms of its metallurgical, mechanical and fracture properties.
The mechanical properties and fracture mechanics of the base metal and weld deposit have been compared and correlated in reference to their microstructures and welding parameters. 2.
Online since: October 2011
Authors: Hao Ming Chang, Min Hsing Chang
Assembly pressure plays an important role in the factors affecting the performance of a PEM fuel cell.
The variations of water contact angle, gas permeability, and in-plane electrical resistivity with the assembly pressure are also measured to explore the effects of assembly pressure on these physical properties.
Introduction Assembly pressure is an important factor that may significantly affect the performance of a PEM fuel cell.
Lin et al. [6] also investigated the effect of compression on the physical properties of GDL.
The ex-situ tests for the variations of physical properties of GDL with assembly pressure indicate that the noticeable changes in hydrophobicity, electrical resistivity, and pore structure should be the major factors which cause the deterioration of cell performance in high compression conditions over 3 MPa.
Online since: June 2025
Authors: Marek Kočiško, Martin Pollák, Jakub Kaščak, Peter Gabštur
· Materials – The choice of material significantly affects the strength and physical properties of the design.
This method was implemented in Creo Parametric 11.0.0.0 and verified using Finite Element Method (FEM) analysis. 3D printing creates parts that are heterogeneous in terms of mechanical properties.
These factors affect the strength and stiffness of the part in different directions, which increases the complexity of simulations using the FEM.
PLA is popular in additive manufacturing due to its simple printing process, eco-friendly properties, and sufficient mechanical characteristics for prototyping and some less demanding applications.
While this approach enables the creation of optimized design solutions, it often does not take into account all physical factors, such as dynamic loads and environmental influences that can affect the mechanical properties of materials.
Online since: April 2012
Authors: Yi Feng Dong, Yun Liu, Xu Chao Shi
Embankments for roads and highways construction over soft deposits always create special problems due to the poor engineering properties of soft clay.
Therefore it is necessary to takes into account those properties in order to get better prediction in soft clay consolidation settlement analysis.
Laboratory test In the paper, we research the consolidation properties of soft clay using elastic visco-plastic modeling; the test results show that EVP modeling can describe the soft clay’s deformation properties.
Seven major factors affecting settlement of soft clay, namely X1, X2, X3, X4, X5, X6, X7, where X1 stand for the way of ground treatment, and A stand for no treatment, B stand for sand mats, C stand for plastic drainage board, C stand for sand drain.
According to the result of investigation and data analysis about the settlement of the soft clay foundation, several research conclusions are drawn: 1) Soft soil foundation settlement is affected by a lot of factors, and the relationship between them is high dimension, highly nonlinear and complicated relationship.
Online since: October 2014
Authors: Shuai Qin, Lu Liang
The results showed that the cement-sand ratio was the most important influence factors on compressive strength and those factors have similar influence.
Experiment results were analyzed using variance analysis and found out the most important factors of affecting the filling compressive strength.
In Chinese ].According to the number of test factors and levels, the experiment choose orthogonal table L9 (34).
Factors and levels are shown in Table 1.
The network is trained by the LM algorithm until it is convergent ,then the optimal solution or approximate optimal solution can be searched.GA-BP has the properties of fast convergence, good stability and top-grade network training results ,these properties are needed in researching and building prediction method with properties of rapid constringency speed, good stability solution and good performance optimization[[] Guolei Ya, Jiahe Zheng, Yangzi Yan, et al: Mechanical Systems and Signal Processing.
Online since: January 2013
Authors: Wen Ping Chen, Yong Su, Ping Hu, Yan Jiang
The mechanical properties and conductivity of this aluminum conductor both comply with the requirements of wire and cable conductor cores.
Therefore, it is quite urgent to have the aluminum with both high conductivity and better integrated mechanical properties.
At four factors in the range to choose three levels and add 0.008% boron in the aluminum alloy conductor.
Also, iron affects elongation at break more.
(4) Consider two factors that mechanical properties and conductivity of aluminum conductor as wire and cable, the best process parameters for annealing treatment are: annealing temperature of 310 ° C, and holding time for 30min, direct air cool.
Showing 7161 to 7170 of 26166 items