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Online since: August 2004
Authors: Chang Sung Seok, Jung Won Seo, Byeong Choon Goo, Jae Hoon Kim
Measuring points p Measurement of properties Hardness.
When material properties depend much on positions in a material or it is difficult to make test specimens from a material or component, an instrumented indentation test described in ISO 14577-1 and 14577-2 can be used to measure material properties.
In this study, yield strengths, tensile strengths and work hardening exponents of base materials, heat affected zones and weld metals are measured using a similar method.
The fracture initiation location was in agreement with the weld toe with the greatest stress intensity factor, tK in case of annealed AAY specimens.
From the tK values and weld bead shape data, stress notch factors, fK were calculated by the Neuber and Peterson formulae [7].
Online since: October 2022
Authors: L.S. Sudharson, Prabakaran Prabakaran, C.A. Arjun
Therefore, the analysis depends on various factors.
Various tests were conducted to survey the mechanical properties like tensile strength, flexural quality, affect quality and hardness of the half-breed composite material.
The mechanical properties of all the materials are given below.
Mechanical properties of steel are directly available in the database of Ansys Workbench.
The remaining mechanical properties of GFRP, a new composite material, were entered manually by indicating all the properties of high-grade natural fibres.
Online since: September 2013
Authors: Mateusz Romaszko, Marcin Węgrzynowski
Structure of the beam So far, neither the entirely appropriate element type exists which can be used to simulate magnetorheological fluid behavior directly in ANSYS, nor a completely suitable material model conforms to the rheological characteristics and mechanical properties of MR fluid.
It was assumed that the electromagnet does not change its position and affects the MR fluid in the position of  mm.
In this range the properties of the fluid change along with the various intensity of magnetic field H generated by the electromagnets: kp(H), cp(H).
The peaks of the curves, representing the response amplitudes at resonance frequencies, becomes flatter due to the higher loss factors.
Wu: Finite element analysis of a simply supported MR fluid sandwich beam based on ANSYS, Applied Mechanics and Materials, 94-96, 902-908 (2011) [15] MRF-132DG Magneto-Rheological Fluid Typical Properties, Lord Inc. http://www.lord.com/ [16] ANSYS help, ANSYS Inc
Online since: October 2006
Authors: Dong Ho Bae, Gyu Young Lee, Seong Cheol Jang
.% NaCl Solution Seong-Cheol Jang1,a, Dong-Ho Bae2,b and Gyou-Young Lee1,c 1 Student, Graduate School, Mechanical Engineering Department, Sungkyunkwan University, 300 Chunchun-dong, Jangan-gu, Suwon, Kyunggi-do 440-746, Korea. 2 Corresponding Author, Professor, School of Mechanical Engineering, Sungkyunkwan University, 300 Chunchun-dong, Jangan-gu, Suwon, Kyunggi-do 440-746, Korea.
From these efforts, the advanced technologies and methodologies to obtain information on their actual degradation as well as life prediction under the corrosive environments and mechanical condition have been developed [1-3].
Its chemical composition and mechanical properties are illustrated in Table 1.
Since the asperity and oily particles on the surface of the specimen affect corrosion reaction, after polishing the surface of every specimen, then cleaned with the ultrasound washer.
The reason why the crack growth rates under corrosion environment is larger than those of in air is due to the fact that corrosion active factor like Cl- made cathodic dissolution at the crack tip and acted as a factor accelerating crack growth rate [9.10]
Online since: June 2014
Authors: Li Ming Zhang, Jian Wei Zhou, Bo Chai, Hai Yan Gao, Yong Hui Wang, Qi Rong Li
The plane distribution of PAHs in soil is mainly controlled by wind direction and slope, vertical distribution is controlled by its solubility in water and soil properties.Many kinds of PAHs in soils out of limit, which is poor soil.The 6 kinds of heavy ring PAHs which is carcinogenic is distributed in 5~15 cm of the topsoil.
They had been being of soil environmental pollution problems of the system due to some of them proved to be mutagenic, carcinogenic and teratogenic, their bioaccumulation potential in the tissues of animals and humans throuth the food chain, and their toxic properties for human and wildlife[1].
The purpose of sampling points’ layout principle is to be able to find out the content of pollution factors in different distance apart from the coal waste rock dumps in different depths of soil.
Table 2 Toxicity equivalence factors of 16 PAHs PAHs TEFs PAHs TEFs Nap 0.001 Baa 0.1 Ane 0.001 Chr 0.001 Any 0.001 Bbf 0.1 Fle 0.001 Bkf 0.1 Phe 0.001 Bap 1 Ant 0.01 Daa 1 fla 0.001 Bgp 0.01 Pyr 0.001 Ilp 0.1 TTEC= In the formula: MSCi is the measured concentration of i , TEFi is the toxicityequivalent factor of i.
The vertical distributions is controlled by its water solubility and soil properties.
Online since: August 2004
Authors: Myung Ho Song, Jeong Ho Lee, Young Kil Shin
However, differential signals are processed to eliminate common factors of the two coil's impedance so that signal interpretation is not straightforward.
Eddy current density and its distribution are dependent on the existence of anomalies and material properties of the test object.
In addition to defect inspection, it can be used to indirectly measure mechanical and metallurgical properties that correlate with electrical properties.
But, the prediction and interpretation of differential signals are not easy because they are processed to eliminate common factors of the two coils [5].
The displacement of operating point is closely related to the properties of test object and the operating conditions.
Online since: November 2023
Authors: Ilchat Sabirov, Eric Macia, Marta Muratori, Andrés Sierra-Soraluce, Ali Smith
The compositions and base material longitudinal tensile properties are shown in table 1.
QP stainless steel chemistries and mechanical properties.
The fracture type can give a qualitative impression of the joint’s mechanical properties, although this remains a subject of debate.
Lu, Microstructural characterization and mechanical properties in resistance spot welding of Q&P980 steel involving “effective softening” at the fusion boundary, Mater.
Marashi, Critical review of automotive steels spot welding: Process, structure, and properties, Sci.
Online since: November 2014
Authors: Qing Hua Zou, Zhen Guo Wang
Experiment on Doping Rare Earth Diamond Tools Matrix Composites with Fe Replacing Co Qing-Hua ZOU1,a,* and Zhen-Guo WANG1,b 1School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan, China, 430073 aqinghuazou555@163.com, blaoyong@sina.com *Corresponding author Keywords: diamond tool, doping cerium, matrix composites, mechanical properties Abstract.
In view of these factors, this study makes experiments on rare-earth doping technique of diamond tool (matrix) composites respectively by means of the improved doping technique and get a great success.
Four largest problems encountered in doping technique include: (1) After doping, the dried power of metal alloy is easy to form vary hard small particle block which is easy to meet with oxidization, seriously affecting the grain size and quality of the powder and the doping effect of uniform diffusibility to which the doping rare earth should reach up.
Online since: May 2011
Authors: Yu Pu Song, Gui Rong Liu, Fu Lai Qu
In contrast, peak temperature in the same depth is strongly affected by the fire duration.
Moreover, the thermal field is an important factor in assessing the residual strength and determining the feasibility of repair of fire-damaged concrete members [5,6].
Table 1 Test specimen properties Specimens t(min) N(kN) S(mm) Specimens t(min) N(kN) S(mm) N0T6 48 0 150 N4T9 90 400 150 N0T9 90 0 150 N6T6 60 600 150 N2T6 60 200 150 N6T9 90 600 150 N2T9 90 200 150 N4T6-D 60 400 100 N4T6 60 400 150 N4T9-D 90 400 100 Note: t-fire duration; N-the axial load applied on the specimen; S-spacing of both longitudinal and transverse reinforcement bars.
This may be attributed to the poor heat-conducting properties of concrete.
This demonstrates that a thermal analysis can be carried out before a mechanical analysis for RC members exposed to fire.
Online since: February 2016
Authors: I. Ostrovskii, V. Lichodievskiy, N. Vysotskaya, A. Korsak, A. Klimovskaya, Yu. Chaikovsky
A key problem of this research is a lack of “know how” to test the physicochemical state of the interface and to control its properties.
The key problem of all this research is to understand the physicochemical state of the interface and to develop methods to obtain the prespecified properties.
It has been demonstrated that the adhesive properties of silicon wire arise from its interaction with the physiological environment.
Gander, Effect of controlled co-delivery of synergistic neurotrophic factors on early nerve regeneration in rats.
Basu, Crystalline Silicon - Properties and Uses (InTech, Rijeka, 2011) p. 23-42.
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