Search:

  • Factors affecting the mechanical properties of

Search Options

Sort by:

Publication Type:

Open access:

Publication Date:

Periodicals:

Search results

Online since: June 2014
Authors: Fazlena Hamzah, Jagannathan Krishnan, Shareena Fairuz Abdul Manaf, Ani Idris, Wan Asma Ibrahim, Farah Nur Zaiham Zulkifli, Mahanim Sarif, Nur Hamizah Ismail
Bamboo was grinded into 200 to 500 µm using Octagon Digital Mechanical Sieve (London).
Activated carbons were prepared through different carbonization temperature (400oC and 500oC) and types of activation (AC1 and AC2) in order to determine the best physical properties of activated carbon produced as shown in Table 1.
Another factor that contributes to development of pores was the cavitation effect of microwave radiation.
The FTIR analysis revealed that microwave activated carbon gave more carbon properties than thermal activated carbon for analysis.
Functioning group analyses show the reduction of the group when exposed to the irradiation and results in more carbon properties which is good for activated carbon.
Online since: January 2005
Authors: Man Hee Kim
Science philosophy is revealed by the cognition and belief regarding the fundamental nature of science and deeply affects science education (Cho, H., 1998).
The third major goal is personal-social development, which has not had a clearly defined terminology; it has been a latent factor and has vacillated in prominence more than the other two goals.
Rather, systemics regards the totality composed of interrelated components, and claims that the system does have gestalt as the property of the whole.
System science is a scientific-technological area concerning the patterns, general properties, and dynamics of systems as well as system methodology and its application, whereas systemology, the basic principles of system science, is an academic discipline concerning the basic concept, characteristics, laws, and classifications of general system (Pak, C., 1997).
Hence, it tried to maintain and control science education from the perspective of mechanical determinism.
Online since: January 2012
Authors: Yong Sheng Cheng
The main fold is asymmetrical, with a tight north-west limb that was affected by the north-east-trending Longxianggai fault[11].
This formation has high content carbonaceous, which leads to the fragile and the special mechanical properties in some degree.
The mineralization factors and tectonic evolution of Dachang super large tin deposit, Guangxi, China[J].
Online since: October 2011
Authors: Shao Hui Su, You Ping Gong, Guo Jin Chen, Hai Qiang Liu
Research on Technologies of Process Integrated Control for Multidisciplinary Collaborative Design Liu Haiqiang1,a, Chen Guojin2,b, Su Shaohui3,c, Gong Youping4,d (1,2,3,4Department of Mechanical Engineering Hangzhou Dianzi University,Hangzhou,Zhejiang Province,China,310018) aLiuhaiqiang1980@126.com,bchenguojin@163.com,cmesshhui@163.com Keywords: Multidisciplinary Collaborative Design, Meta-model, Implementation Method, Design Process Abstract.
However, as multidisciplinary collaborative design is a multi-hierarchy, complicated dynamic control system, process integrated control for multidisciplinary collaborative design has always been influenced by the subsystem-level factors within the various disciplines.
MCD-oriented Integration of Product Design Meta-model (MIDM) Multidisciplinary collaborative design process, the various disciplines of design activities is the link information integration, information integration management objective is to integrate all aspects of information involved can meet the design goals of its own, if the model describes the inconsistency will lead to difficulties in collaboration, to the product of multidisciplinary collaborative design process adversely affect the integrated control [4,5].
Meta-model of the check process including content check, property evaluation, calibration and interface to the effectiveness of the implementation of rules of the inspection and so on, through constant iteration, repeatedly revised, and ultimately improve the meta-model.
Interdisciplinary collaborative design staff design and analysis flow passage refinement, the standard design element model of integrated modeling process, the constraints in the implementation of the rules regulating the level, the overall design parameters of the drum-level object, the object design model, input file object, the output file object and subject object property analysis tools, the description and configuration specific to establish MIDM meta-model, an instance of the different part of the design flow process, knowledge, personnel organization, design data, etc., if change drum of the design process, variable conditions accounting process and the corresponding design parameters, knowledge, personnel, parts model.
Online since: May 2013
Authors: Tomasz Buratowski, Mariusz Giergiel, Krzysztof Kurc, Piotr Małka, Michał Ciszewski
Mechanical structure Similarly to most of the analyzed robot structures, it was decided to utilize two tracks.
The slip phenomenon is affected by properties of the ground, driving force, type and placement of track treads.
It is possible to determine the relationship between the driving force and factors that influence the slip by: Pn=106b0Lτxdx. (4) where: Pn – driving force b – width of the crawler track L – length of the load-bearing segment of the crawler track τx – shear stresses in the soft ground Assuming that the course of parallel deformations to the ground is linear, it is possible to express these deformations by: Δlx=xsb. (5) where: sb – slip x – distance of the point, for which the slip is calculated from the point of crawler track contact with the ground; the greatest slip appears for x = L.
Online since: August 2023
Authors: Nesreddine Djafar-Henni, Rachid Chebili
It was concluded that the shear span ratio affects the shear capacity of shear walls.
A value of 0.25 is taken for the zone acceleration factor A.
For the concrete fibers, Mander’s stress-strain diagram is generated using the expected material strength properties (1.3fc) as recommended by LATBDSC [30].
The elastic non-damage stiffness of the material (i.e., elastic modulus) is used to define the mechanical properties at the stage before reaching the failure stress σ't=3.55MPa.
The expected yield stress for the steel material Fe415 is 484 MPa which is the value of yield strength multiplied by a factor of 1.17, as recommended by LATBDSC [30].
Online since: September 2015
Authors: Fabian Ritz, Tilmann Beck, Stephan A. Kovacs
Because VHCF life is rather governed by crack initiation than by crack growth [10, 12], damage evolution is strongly affected by the local microstructure.
Table 2: Mechanical properties of X10CrNiMoV12-2-2 at room temperature Vickers hardness 334 HV Yield strength 843 MPa Ultimate tensile strength 1001 MPa Elongation at fracture 17.7 % Contraction at fracture 58 % Young´s Modulus 213 GPa Cylindrical rods were taken from the blade root by electro-discharge-machining and turned to the final specimen geometry with cylindrical gauge length of 10 mm and a diameter of 3 mm [21].
Li, Effects of inclusions on very high cycle fatigue properties of high strength steels, Int.
Yang, Factors influencing the GBF size of high strength steels in the very high cycle fatigue regime, Materials Science and Engineering: A, In Press, Corrected Proof (2010)
Lu, Very high cycle fatigue properties of bearing steel under axial loading condition, International Journal of Fatigue, 31 (2009) 880-888
Online since: April 2014
Authors: Peng Luo, Shuang Yang
Since micro-pool lubrication technology has been applied in mechanical face seal since early time, there have been more studies on this aspect[4].
Table 1, Parameter selection for surface micro-pool structure Influence factor Diameter[μm] Depth[μm] Interval[μm] diameter 70 30 100 Production of a micro-pool drill.
The micro-pool drill, however, was smaller in the scope affected by stress when working and the stress was more evenly distributed.
Moreover, since 2# micro high pressure lithium grease is featured with good ground-adhering ability, much solid lubricant will stick to and drag on the surface to form a layer of stable lubricant film layer which causes the friction to happen in the inside of the lubricant film and improve anti-friction property of the contact surface.
Burstein: A model for Mechanical Seals With Regular Microsurface Structure (Tribology Transactions, Philadelphia 1996)
Online since: February 2012
Authors: F. Suárez-García, J.I. Paredes, M. Pérez-Mendoza, J. Nauroy, A. Martínez-Alonso, J.M.D. Tascón
Introduction Carbon nanofibers (CNFs) are currently the focus of intense research attention as a result of a number of attractive properties.
Simpson, Magnetic properties of Fe-Co catalysts used for carbon nanofiber synthesis, J.
Rice, A review of the fabrication and properties of vapor-grown carbon nanofiber/polymer composites, Compos.
Calafat, Factors affecting the preparation of activated carbons from coconut shell catalized by potassium, Carbon 29 (1991) 949-953. ].
Yang, Effect of activation temperature on the textural and chemical properties of potassium hydroxide activated carbon prepared from pistachio-nut shell, J.
Online since: March 2008
Authors: Yuriy S. Nechaev
The possibility is considered of nanotechnology applications of the study results for creation of nanostructured metals with compound-like nanosegregation structures at grain boundaries, in order to obtain specific physical and mechanical properties of such a cellural-type nanocomposites.
According to [16], these techniques [1-15] can be used for the creation of nanostructured metals with the compound-like nanosegregation at grain boundaries, in order to stabilize the nanostructures and to obtain the specific physical and mechanical properties of such a cellural nanocomposites.
These traps, mainly dislocations, influence the apparent characteristics of hydrogen solubility and diffusivity [17,18]; as a result, even small additions of hydrogen can significantly affect the physical, mechanical and corrosion properties of metals and alloys [19,20].
On the basis of the analysis of the data [27] (in the previous section), one can suppose that in many cases the thermodynamic factors (fH, f⊥H) are close to unity.
The above presented methodology and the results of determination of the characteristics of the hydride-like nanosegregation of hydrogen at dislocations in palladium can be applied for revealing micromechanisms of hydrogen influence on physical and mechanical properties of palladium and palladium-based alloys, and also for optimization of the regimes of thermal-hydrogen treatment and hydrogen-induced hardening ("naklep") of the materials.
Showing 25311 to 25320 of 25799 items