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Online since: April 2023
Authors: B.K. Barakhtin, S.N. Perevislov, A.S. Zhukov, V.V. Madin, P.A. Kuznetcov
The properties of dampers manufactured by the selective laser melting are investigated.
Microswear with different elastic and plastic properties were found.
It is assumed that the features in the atomic crystalline structure of the SLM metal are defining factors in the elastic and plastic properties of the dampers.
Such defects affect the mechanical behavior of thin walls when they are bended or compressed, which is noted on the compression diagrams (Fig. 5) in the form of local minimums.
Taking into account the remarks on the mechanical stability of the plates, it can be assumed that the orientation and length of the melt volume, as well as the elastoplastic accommodation of their boundaries, are determining structural factors in the elastoplastic properties of the metal.
Online since: September 2013
Authors: V. Balasubramanian, A.K. Lakshminarayanan, S. Malarvizhi
[6] examined the microstructural evolution and mechanical properties of friction stir welded AISI 430 grade stainless steel and found that the coarse elongated ferritic microstructure in the base material was changed to very fine duplex microstructure of ferrite and martensite resulted in significant improvement in mechanical properties.
Tensile and impact properties.
Inagaki, Microstructure and Mechanical Properties of Friction Stir Welded 430 Stainless Steel.
Zhai, Microstructure and mechanical properties of 12 wt.% Cr ferritic stainless steel with Ti and Nb dual stabilization.
Ula, Effects of microstructure and notches on the mechanical properties of dual-phase steels, Mater.
Online since: July 2013
Authors: F. Halila, C. Czarnota, M. Nouari
The advantage of such two-phase alloys consists of their high mechanical properties while keeping an excellent ductility.
This means that machining process plays a very important role in the mechanical properties of alloys by affecting their microstructure.
Tables 3 present a summary of mechanical and thermal properties of the alloy.
Table 3 Mechanical and thermal properties of Ti6Al4V.
Table 4 Mechanical and thermal properties of chemical components of the cutting tool.
Online since: October 2023
Authors: Sunardi Sunardi, Yusril Dwiki, Miftahul Jannah
It was found that the ramie fiber plant or Boehmeria Nivea is a plant with high fiber content and properties similar to cotton [1].
However, the mechanical properties possessed by polyester are not very good [6].
In composite science, several factors affect the strength of the composite, one of which is the orientation of the fibers.
The elastic modulus of woven composites showed a higher significance value than random fiber direction samples, and the fiber's structure and composition strongly influenced the structural composite's mechanical properties.
The composite material of polyester resin-reinforced woven ramie shows significant mechanical properties against tensile loads, impact toughness, Staight and the best material structural density.
Online since: July 2011
Authors: Zhongyuan Lu, Jun Li, Feng Yuan Yang, Shun Ai He
Many studies have been carried out to research the properties of Portland cement foam concrete [1].
And high thermal insulation and energy absorption properties of the as-prepared foam phosphogypsum have been found.
Results and Discussion Properties of Phosphogypsum Paste.
The properties of foam phosphogypsum were studied after the influence of these factors on paste had been confirmed.
It’s related to the thermal properties of gypsum and the porous structure of phosphogypsum.
Online since: August 2013
Authors: Ming Chen, Kai Liu, Wen Wen Lu
The factors such as slenderness ratio, eccentricity, gusset plate thickness and spacing were discussed, which produced the impacts to bearing capacity, and the relationship between stiffness and axial load.
Slenderness ratio, eccentricity and gusset plate spacing are the major factors that affected the mechanical behavior, while the gusset plate thickness has no obvious impact.
It suggests that slenderness ratio is the main factor controlling stable bearing capacity of composite column.
The flexural rigidity of eccentric compression column have relationship with material property, section form, slenderness ratio, gusset plate thickness, the eccentricity, axial load and so on.
Experimental study of the mechanical properties of cold-formed thin-walled C Steel Stub Columns[J].
Online since: July 2015
Authors: S. Ahmad Tajudin, Aeslina Abdul Kadir, Ali Benlamoudi
In addition, changes in particle sizes, pre-treatment, temperature and other factors have also been discussed towards the heavy metal adsorption.
Some factors may affect the adsorption capacity of heavy metals by SCB, such pH, temperature, initial heavy metal concentration, biosorbent, dose, biosorbent size, ionic strength, co-ions and others.
Although this percentage may affect the solidification properties of the specimens, but they still fit the standards.
The percentage of these agricultural wastes, their particles’ sizes and their pretreatment affect the mechanical properties of the matrices such as the density, the strength, the water absorption and others to be stored in the landfill.
Mokhtar, Mechanical properties of soft clay stabilized with cement-Rice husks (RH), 2011, unpublished
Online since: September 2011
Authors: Shu Qian Xu, Ruo Ming Chen, Cai Yun Ai, Zhao Hui Song, Jun Ma, Zong Jie Mu, Xiu Jie Xu, Guo Qiang Hu
Because of the affected factors of Bottom Hole Assembly (BHA) , deflecting force of the formation, anisotropy of the formation, and other factors, the bit will always deviate from the well track in formations of fractured, fault zones, high dip, and other abnormal formations, especially in piedmont zone.
By downhole mechanical-electrical-hydraulic integration, the plungers would be extended pointing to the direction of deflection.
So, oilfield application of Φ311AVDS has proved that structural design, power generation unit, data real time transmission and its analysis, and other units such as hydraulic system, sealing properties achieved the aim of the design requests.
And the AVDS realized the effectiveness mechanical-electrical-hydraulic integration and achieved the aim of the downhole closed loop control.
The Φ311AVDS can not only improve the technologies of high dip formation especially in piedmont zone, but also establish the bases of developing other steering tools in China. 3 To optimize the designs of structure, power generator, and hydraulic system, sealing properties and other units, technicians should increase research and experiment intensity to make the Φ311AVDS more matured and perfect. 4 According to the requirements of the casing program, technicians should continue to research and develop the Φ311AVDS in series to adapt the development of drilling technology.
Online since: February 2007
Authors: Yu Zhou, Hua Jian Chang, Michihiko Nakagaki
The debonding parameter greatly affects both the properties for almost entire range of the particle volume fraction.
It is one of the most important factors responsible for the stiffness reduction of the composites under a static or cyclic loading [1].
Therefore, to incorporate the property and structure of interface into the evaluation on the effective properties of composites is necessary.
Material properties.
In this case the distribution factor β is fixed at 0.82.
Online since: September 2012
Authors: Yi Ke Tang, Han Wei Zhang, Lu Yang, Xiang Li
The travel of MSW on the grate depends on the physical characteristics of the solid wastes and the grate properties.
As compare with coal, diesel-fuel etc, the MSW is a more complex and non-homogeneous, physical properties and chemical properties of MSW have a direct effect on the wastes flow through a WTE combustion chamber and the combustion processes.
The movement direction of the waste particle is stochastic, and it is affected by multi-factor such as density, particle size, particle shape, porosity, compressibility, agglomeration, cohesiveness, shear behavior and etc.
Because the MSW is a sort of non-homogeneous mixture, the influencing factors are stochastic.
Because the components of MSW are almost stable for a period of time in a district, the properties of the grate configuration will influence the MSW motion, and the incline angle to the horizontal of the grate bars is an important property for MSW motion.
Showing 9041 to 9050 of 25935 items