Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: May 2014
Authors: Shoichiro Yoshihara, Yuki Nakamura, Bryan J. Mac Donald, Emmet Galvin
In this study, the influence of mechanical and electrochemical phenomena on the corrosion behavior of SUS304 stainless steel bolt was investigated.
Models that allow for accurate prediction of corrosion behavior and the subsequent loss of mechanical integrity of parts are very useful in this regard.
The corrosion of SUS304 stainless steel is influenced by many factors such as mechanical loading and environmental conditions such as temperature and potential hydrogen (pH) which may break down the oxide film and allow the progression of corrosion.
Table 3 shows the material properties of SUS304 stainless steel bolt.
The reason for the increased average mass loss is that the strain was increased. 2) The corrosion state and the corrosion potential were affected the axial force reduction rate and the average mass loss.
Online since: February 2020
Authors: Antonio Gilson Barbosa de Lima, B.R. de Brito Correia, E. Morais Cabral, W.R. Gomes dos Santos, R.Q. da Costa Melo, Hortência Luma Fernandes Magalhães, Maria José de Figueiredo
These effect leads to the degradation of the fiber-matrix interface region resulting in a low transfer of stress between these materials that result in a decrease of the mechanical properties [3-5].
This factor is one of the main drawbacks of these materials.
Baley, Study of tensile properties of stinging nettle fibers (Urticadioica), Mater.
Karlsson, Comparasion of water absorption in natural cellulosic fibers from wood and one-year crops in polypropylene composites and its influence on their mechanical properties, Compos. part A: App.
Li, Relation of modification and tensile properties of sisal fiber, Acta Sci Nat Uni Sunyatseni. 35 (1996) 53-7
Online since: June 2014
Authors: Tomoaki Kawa, Masaki Nagao, Toshiji Mukai
The mechanical properties of magnesium alloys under dynamic loading have not been explored in sufficient depth.
However, magnesium alloys are not generally used for structural elements in automobiles because their ductility and/or toughness are low at room temperature [1-3] and their mechanical properties under impact loading have not investigated in sufficient depth.
The material properties of the specimen are shown in Table 1, and the yield stress and plastic strain at failure used for input data are listed in Table 2.
Table 1 Material properties of AZ31 magnesium alloy and 7075 aluminum alloy.
V is the battery voltage, K is the gauge factor, E is the Young’s modulus of the transmission bars, respctively.
Online since: March 2013
Authors: Li Po Yang, Bing Qiang Yu
In the shape detecting process, affected by temperature, humidity, magnetic field, vibration, installation geometric errors, process allocation and other working condition factors on site, online shape signals may be distorted in most case, and can not reflect true shape condition.
The differential circuits are composed of radial symmetrical two sensors for eliminating signal drifting which may be caused by temperature, humidity, vibration, magnetic and other factors.
The optimized structure of detecting roller not only has good mechanical transfer properties, but also has the maximum Mises stress in the safe range.
Multiple isolation measures were used to prevent industrial interference signals of magnetic, temperature, humidity, vibration and other external factors.
Journal of Mechanical Engineering, Vol. 47 (2011) No.12, p.56-61.
Online since: August 2007
Authors: Michael J. Pomeroy, Stuart Hampshire, Amir R. Hanifi, Annaik Genson
An Introduction to the Glass Formation and Properties of Ca-Si-Al-O-N-F Glasses A.
Ca-Sialon glasses have been known for some time [1] and they are effectively calciumalumino-silicate glasses containing nitrogen which improves their mechanical properties.
Properties of Ca-Si-Al-O-N-F glasses.
Table 2 shows the thermal properties of Ca28Si57Al15 with different anion compositions.
The changes in properties of glasses in this system with varying anion ratio show that nitrogen increases the Tg and mechanical properties, acting as a cross linking agent while fluorine decreases these properties and appears to be a network disrupting agent.
Online since: March 2011
Authors: Y.F. Li, Y.C. Jiang, X.L. Liu, Shi Wu, D.K. Jia
Therefore, a series of modal testing and simulation calculation of chatter stability are produced to gain the effect of various factors on chatter in machine-cutter system.
The main cutter factors to affect chatter stability are tool overhang and tooth number.
L: Chinese Journal of Mechanical Engineering , 2003, Vol.16 (1): pp.13-16
Li: China Mechanical Engineering, 2005, Vol.16(13): pp.1146-1150
Cheng all: Chinese Journal of Mechanical Engineering, 2007, Vol.43(1): pp.164-167.
Online since: February 2014
Authors: Feng Qin Li, Song Deng, Xiao Shuang Xiong, Jian Cai, Qiu Ping Luo
However, in practical straight bevel gears drives, gear damage including wear, surface fatigue, plastic deformation and breakage may occur because of long working time, deterioration of the environment and other factors [6,7].
In fact, contact pressure is the key factor affecting wear [16-18] and investigating the contact pressure in straight bevel gear meshing is very significant to understand the gear wear mechanisms.
The material is 40Cr steel with the properties of Young’s modulus E =206GPa and Poisson’s ratio =0.3.
Liu: Mechanical Science and Technology.
Han: China Mechanical Engineering.
Online since: February 2011
Authors: Jie Shi, Han Dong, Chao Wang, Yi Sheng Zhang, Bin Zhu
This is the key factor that leads to the poor mobility of the blank material and local thinning, cracking, wrinkling and other defects in forming process.
Finally, the part leaves the hot-stamping about 150 ºC and with high mechanical properties: an ultimate tensile strength of 1500MPa or much higher and little spring-back [3-5]. chematic of hot-stamping process is shown in Fig.1 and finite element model of Collision beam is shown in Fig.2.
Figure 1 Schematic of hot-stamping process Figure 2 Finite element model of Collision beam Hot-stamping FE model of collision beam Definitions of material properties for hot-stamping process.
In order to get reliable modeling and numerical simulation of hot-stamping process, the determination of the thermo-mechanical material properties is one consideration.
The other material properties are given in Table1 to Table 4
Online since: July 2011
Authors: Ai Qi, Wei Lin, Su Guo Wang, Xue Yuan Yan
Construction and control principle of the new combined steel lead damper (NCSLD) were introduced, pseudo-static tests of NCSLD which would be used in the subsequent shaking table tests were carried out for the study of its mechanical properties using electro-hydraulic servo press-shear machine.
The damper is composed of stainless steel plate and lead, it has characteristics of simple constitution, convenient manufacture, stable hysteretic properties and low yield point, it has broad prospect of engineering application.
Mechanical property test results of NCSLD performed on electro-hydraulic servo press-shear machine indicate that both the two directions of NCSLD are of good energy dissipation capability and NCSLD has full hysteresis loops which take on bilinearity.
Determine n, hi, mi, andof the structure, where n is the number of storeys; hi is the height of i-th storey; mi is the mass of i-th storey; is the earthquake affecting coefficient curve of the structure. 2.
Geometric parameters and mechanical parameters of the used dampers are shown in table 1.
Online since: November 2014
Authors: Subramonian Sivarao, Aaron Yu Long, Md Ali Mohd Amran, Raja Izamshah Raja Abdullah, Mohd Shahir Kasim, Abu Bakar Mohd Hadzley
Introduction Demands on Polyetheretherketones (PEEK) polymer start to increase especially on medical application because of its favourable high specific strength and biocompatible properties.
S. et al., 2001] Nowadays, medical device manufacturers are leveraging implantable polymers that have high performance and customized properties because those polymers capable to give high design flexibility which ultimately improve the applications [8].
The complex interaction between the matrix and reinforcement structure yield the gaps different between thermal and mechanical phase of PEEK.
Although the reinforce elements can improve the strength and stiffness properties, however the machining cost is high as reinforced PEEK is extremely abrasive.
The steepest curvature indicates the factor that most significantly affects the response, whereas the relatively flat line suggests insensitivity to change.
Showing 12441 to 12450 of 26166 items