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Online since: May 2020
Authors: Elena L. Nikonenko, Natalya A. Popova, N.A. Koneva
Due to the fixation of the deformation axis, it is possible to calculate the value of Schmid factor for each twinning system.
The obtained values of Schmid factor for active systems (solid lines) and inactive systems (dashed lines) are shown in Figure 5a.
Austenitic steel (Germany: LAP LAMBER Academic Publishing) p 148 [7] Kozlov E V, Popova N A, Kabanina O V, Klimashin S I and Gromov V.E. 2007 Evolution of phase composition, defect structure, internal stresses and redistribution of carbon at temper of cast structural steel (Novokuznetsk: SibGIU Publ) p 177 [8] Gagauz V P, Kozlov E V, Danilov V I, Ivanov Y F and Gromov V E 2008 Structural-phase states and mechanical properties of thick welded joints (Novokuznetsk.
Fizika Moscow 25 №8 3-14 [19] Zeeger A 1960 Dislocations and mecjanical properties of crystals (Moscow.
Structure and mechanical properties of metals (Moscow.
Online since: August 2018
Authors: Hassan El-Hofy, Mohab Hossam, Mohamed Yassin
Recently, materials with superior mechanical properties have been developed and become the optimum choice in many applications such as optics and electronics.
These materials are classified according to their superior mechanical properties; however, they are considered as difficult-to-cut due to the high difficulty they show during cutting.
This work aims to provide a detailed characterization and a focused review of the main cutting factors of VAM.
Moreover, They claimed that the dominant factors that influence the surface quality were feed rate and cutting speed.
Nevertheless, vibration frequency and amplitude are the dominant factors that need further investigations.
Online since: March 2012
Authors: S.S.R. Koloor, Abbas Azari, Jamal Kashani, Zohreh Arabshahi, Mohammed Rafiq Abdul Kadir
To determine the effect of material properties of TMJ implant, the behavior of TMJ implant should be studied under physiological loading.
Data on the material properties of the components were taken from previous published data considered to be homogenous, isotropic and linearly elastic (Table 1) [8-10].
Two different material properties, Ti-6Al-4V and cobalt-chromium alloy, were used for the implant, whilst the screws were assumed to be made of titanium alloy.
Isotropic material properties assigned to the components in FEA models.
Yield strain used as reference data to calculate the Safety Factor (SF).
Online since: October 2015
Authors: Ji Hwan Kim, Jung Hwan Kim
The material properties can be obtained by the linear rule of mixture.
The arbitrary properties of the panel can be expressed as (3) where subscript M denotes arbitrary material.
In here, the effective material properties and the coefficients of temperature are given as s [5,6].
This represents that the reference temperature is the factor of material properties and affects to the critical pressure.
* Critical pressure deviation is proportional with respect to the neutral surface shift, and is the function of reference temperature for material properties.
Online since: October 2023
Authors: Ricardo J. Alves de Sousa, Fábio A.O. Fernandes, Guilherme J. A. Sousa, Ana R. S. Rocha, Gabriel F. Serra
Cork is renowned for its remarkable mechanical properties, including its high resistance to impact and low thermal and acoustic conductivities. 
This unique porous structure gives the resulting material excellent thermal insulation properties.
Additionally, contents up to 10% of STF do not affect the mechanical behaviour in this region.
This study shows that by varying the amount of STF present, the sample's mechanical properties can be altered for a particular purpose.
Wagner, Dynamic properties of shear thickening colloidal suspensions, Rheol.
Online since: August 2013
Authors: Dian Long Zou, Yun Long Zhang, Dong Yu Liu, Xun Fan
Reliability Analysis of The Hydraulic Support Pin Dong Yu Liu1,a, Dian Long Zou1, Yun Long Zhang1, Xun Fan1 1 China University of Mining and Technology (Beijing), School of Mechanical Electronic and Information Engineering, Beijing, 100083, China aliudongyu1002@163.com Keywords: Hydraulic Support; The Pin; Reliability; Abstract: This paper deduced the force formula of the pin through applying load on the top beam.Using the Hertz formula calculating the mean stress and standard deviation of the pin.By using the stress-strength interference theory to calculate the reliability of the pin. 1 Introduction Hydraulic support is the key equipment in fully-mechanized coal mining face, and it is responsible for the important task of controlling and managing the roof, maintaining a normal work space, moving the face equipment, and protecting personnel and equipment safety.
Its adaptability and reliability is one of the key factors determining whether the fully mechanized equipment is successful or not. [1] Hydraulic shield support of type ZY6000/25/50 is a big mining height, used for thick seam mining.
The structure and size of the pin and the fit clearance directly affect the supporting stability of the support Due to the increasingly complexity of the face, the mining height is constantly increased in height to meet the requirement; therefore the demand on the hydraulic support is on the rise.
Each material property is as follows: Table 2 Material properties Material Poisson's ratio Young's modulus(Gpa) Yield limit(Mpa) Tensile strength(Mpa) Shear strength(Mpa) Q690 0.3 200 730 825 495 30CrMnTi 0.3 206 860 1470 882 Using each special function in MATLAB to get random values of Q, x, f, the reliability of each pin is thus calculated.
Online since: April 2021
Authors: Yong Ho Sohn, Abhishek Mehta
The cocktail effect suggests that the properties in HEAs not only come from the basic properties of elements by the rule of mixture, but also from the mutual interactions among all the elements.
Extensive investigations had been carried out in the past decade on improving the physical and mechanical properties of HEAs, along with some specific focus on thermodynamics and precipitation kinetics of the second phase.
These two factors would create disturbance in configurational space and consequently reduce the configurational entropy.
Xiang, A superfine eutectic microstructure and the mechanical properties of CoCrFeNiMox high-entropy alloys, Journal of Materials Research 33 (2018) 3258-3265
Liang, Microstructure and mechanical properties of multi-principal component AlCoCrFeNiCux alloy, Rare Metals 35 (2016) 385-389
Online since: March 2009
Authors: Krzysztof Koziol, Noorhana Yahya, Mohd Kamarulzaman Bin Mansor
Magnetic properties of nano-crystalline yttrium iron garnet, Y3Fe5O12 and bismuth iron garnet, Bi3Fe5O12 were studied.
The properties of materials composed of magnetic nanoparticles are results of both the intrinsic and the extrinsic properties of the particles [5].
Studies on magnetic properties as a function of particle size have gained much interest particularly those within nanometer range.
The magnetic properties and the microstructure of the nanoparticles were studied.
It is obvious that the correct sintering temperature is one of the main factors affecting the formation of the garnet phase for all the samples.
Online since: October 2025
Authors: Victor Ekanem, Muhammad Uthman, Joel Arumun
Three factors were determined as a starting point and were compared at two levels.
Also, the interactions of more factors apart from the Operator and Part can be evaluated.
Such factors can adversely affect the experimental results and therefore, must be minimized or removed.
Replication means repetitions of an entire experiment or a portion of it, under more than one condition and this has two important properties [18].
Three factors were examined at two levels and it was discovered thus: A) Temperature: A Boxplot of the characteristics of the data acquired for both Zeiss and Equator reveals that one of the automatic measurement systems is more affected by temperature variations.
Online since: January 2013
Authors: František Novotný, Marcel Horák, Martin Plavec
WORKING ENVIRONMENT INFLUENCES Fig. 1 Overview of system connections of the mobile platform MP 02 It is obvious that the robot optimal functioning is affected significantly by the concept of a kinematical chain, drives, control, method of measurement, and holding system which is consequently a determining factor for safety parameters fixing; these parameters are further connected with the robot dynamic behaviour, characteristics of the objects creating the contact plane, layout as well as with the operating staff role during its operation.
From the standpoint of the mechanical connection complexity, higher weight of the chassis drive, and the frame eccentric loading when placing the drive off the chassis axis, the drive allowing the frame to be rotated owing to the frame was placed axially.
On the one hand, the carrying capacity is given by size and number of the suction cups creating the holding system, which has its limits with respect to a vacuum source, pneumatic vacuum circuit, and frame design; on the other hand it is given by mechanical properties of the façade system which is limited by maximum external loading, and also a distance degree of the service robot mass centre from the contact plane; this distance tells negatively on the additional load of the individual suction cups as a result of the tilting moment incurred.
Fig. 5 Stress and deformation fields in the frame without ribs having the connecting plate 6 mm thick Fig. 6 Stress and deformation fields in the optimized frame Summary Analysing the results of operational tests of the first-generation mobile platform of the service robot during its motion on the vertically oriented glass wall, main parameters were determined affecting the mobile platform reliability performance with respect to the motive activities, manoeuvrability, and operational safety.
Y., Lee K., Development of a wall-climbing robot using a tracked wheel mechanism, Journal of Mechanical Science and Technology22 (2008), 1490-1498 DOI 10.1007/s12206-008-0413-x [7] Albagul1 A., Asseni1A., Khalifa O., Wall Climbing Robot: MechanicalDesign and Implementation, In: Proc.
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