Search:

  • Factors affecting the mechanical properties of

Search Options

Sort by:

Publication Type:

Open access:

Publication Date:

Periodicals:

Search results

Online since: February 2012
Authors: Mei Lian Liang, Jun Li Wang, Wei Dong Zhao
(ZPMC) aims at building the development platform and simulation model with independent intellectual property rights, the world’s first intelligent and high efficient tridimensional rail terminal transmission system, and lays the foundation for industrialization [1].
These equipments such as QCs and gantry cranes will directly affect the efficiency of handling system.
Besides, they are relevant to the number of tracks which affect the number of trolleys from the scheme of ZPMC.
Initially, containers wait QCs for lifting and all mechanical equipments are idle.
Performance evaluation Handling equipments are the main equipments of the transmission system so their operating efficiency is the key factor that affects its overall efficiency.
Online since: April 2012
Authors: Hélène Lefaix-Jeuland, Sandrine Miro, Fabrice Legendre
As a consequence, helium interactions with these materials raise an important issue as for their durability of the mechanical and confinement properties.
The so-obtained complementary data, in term of affected depths and damaged profiles, were of great interest to implement models on helium behaviour (coalescence, diffusion, bubble nucleation and growth) that could eventually induce swelling and material damage. 2- Experimental Samples preparation.
After mechanical one-side polishing, the 1 mm thick samples were submitted to a thermal treatment to reduce the large concentration of cold-rolling and polishing-induced defects.
Since the standard ion-beam techniques (ERDA or RBS) could not be used to analyze helium at large depth corresponding to ion implantation in the MeV range [7], we studied the thermally activated 3He migration using the resonant 3He(d, p)4He nuclear reaction. 3He might be used as an isotopic tracer of 4He diffusion considering an isotopic correction factor.
Application of the Arrhenius law, taking into account the isotopic correction factor of √4/3 between 4He and 3He isotopes diffusion properties, yielded to D0 = 4.9x10-11 cm2.s-1 and Ea = 1.13 eV.
Online since: March 2012
Authors: Sulaiman Hussaini, Gregory Lahrman
The complexity arises due to factors like: large product mix in the same facility/line, numerous manufacturing steps, product customization, batch processing, multiple levels of subassemblies etc.
These changes and analysis can all be done easily with a few mouse clicks and their affect analyzed without the need to risk the changes in the real world.
In April 2010, The US Food and Drug Administration (FDA) issued its latest revision of the guidance document regarding non clinical engineering tests and the agency made the following recommendation: “...We recommend that you determine the stress-strain response, endurance limit, and post-processing mechanical properties through physical experiments or computational models that simulate stent material properties, manufacturing, and deployment processes...”
This simulation analysis example has shown how easily different scenarios can be tried and how tradeoffs between key process factors can be made in a systematic and informed manner to achieve the desired optimal state.
Online since: December 2024
Authors: Oksana Melnikova, Valentina Iurchenko, Natalia Teliura
In sewerage systems, corrosion damage of concrete gravity collectors is characterized by a high speed and scale of the process, and only the vault part is affected, causing up to 70 % of accidents at these facilities [1–3].
The susceptibility of concrete, a porous building material, to microbiological corrosion is explained by its chemical composition, structure and mechanical properties [4, 11].
These organic compounds can affect the polymer coatings of concrete, making them permeable to sulfuric acid and completely ineffective in protecting concrete from biogenic sulfuric acid aggression. 5.
Mykhailova, Hydrogen Sulphide in Industrial Enterprises Water Management Infrastructure - The Factor of Chemical and Microbiological Corrosion Concrete Degradation of Water Facilities.
Dietzel, Advances in concrete materials for sewer systems affected by microbial induced concrete corrosion: A review.
Online since: July 2022
Authors: Raad M.S. Al-Haddad, Rusul Mohammed Abdallah
This factor can interfere directly in the properties of the material obtained.
Rossi, Magnetic properties of Fe3O4 nanoparticles coated with oleic and dodecanoic acids, J.
Pandey, Influence of crystallite size on the magnetic properties of Fe3O4 nanoparticles, J.
Quíjada, Study of the Influence of Magnetite Nanoparticles Supported on Thermally Reduced Graphene Oxide as Filler on the Mechanical and Magnetic Properties of Polypropylene and Polylactic Acid Nanocomposites, Polymers (Basel). 13 (2021) 1635
V Ramanujan, Magnetic nanostructures: Synthesis, properties, and applications, in: Springer Handb.
Online since: July 2024
Authors: Amalina Muhammad Afifi, Areisman Salleh, R.A. Ilyas, Fathiah Mohamed Zuki, Mastura Mohtar
Introduction The rising threat of antibacterial resistance worldwide poses a significant public health crisis, affecting the rate of morbidity and mortality related to bacterial infections [1].
Comparatively, common antibiotic Erythromycin (sample A) exhibit 16.45 mm inhibition zone while pure PVA (sample B) did not exhibit any antimicrobial properties.
However, Photodynamic therapy (PDT) efficacy depends on three main factors: light, photosensitiser agent, and oxygen [45].
Niza Mohamad, Studies on properties and adsorption ability of bilayer chitosan/PVA/PVDF electrospun nanofibrous, Desalination and Water Treatment 206 (2020) 177-188
Yan, Antimicrobial Properties of Chitosan and Chitosan Derivatives in the Treatment of Enteric Infections, Molecules 26(23) (2021)
Online since: August 2018
Authors: Chobin Makabe, Md. Shafiul Ferdous, S.M. Moshiar Rahman
In the case of cracked materials, the crack closure behavior affects the crack growth rate.
The Mechanical properties of the material were 283 MPa of yield stress, 449 MPa of ultimate tensile strength and 60% of reduction of area.
Fig. 4 shows the crack growth rate da/dN as a function of the maximum of the stress intensity factor Kmax.
The variation tendency of the local strains in the vicinity of the crack was affected by whether acceleration or deceleration occurred due to the crack opening and closing behavior.
Online since: March 2010
Authors: Li Zhang, Liang Wei Zhong
Dynamic Characteristic Analysis of the Horizontal Machine Center Li Zhang 1, a, Liangwei Zhong 1, b 1 College of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China a usstcad@126.com, b zlv@usst.edu.cn Keywords: Machine center, modal analysis, harmonic response analysis, resonance vibration Abstract.
This not only affects the accuracy of milling process, but also causes serious damage to the cutter head.
(6) This shows that:  H is the ratio factor of the response  tx to the excitation force  tp .
The amplitude of the forced vibration is only determined by the physical properties (natural frequency), the size of the excitation force and the frequency of the system itself .It has nothing to do with the initial conditions.
The initial conditions only affect the transient vibration of the system.
Online since: October 2014
Authors: R.K. Ganesh Ram, R. Karthikeyan, C. Periasamy, Yashaan Nari Cooper, Vishank Bhatia
Design Optimization and Analysis of NACA 0012 Airfoil using Computational fluid dynamics and Genetic algorithm Ganesh Ram R K1,a, Yashaan Nari Cooper2,b, Vishank Bhatia3,c R.Karthikeyan4,d and C.Periasamy5,e 1,3,4,5 Department of Mechanical Engineering, BITS Pilani, Dubai Campus, UAE 2Department of Electronics and Communication Engineering, BITS Pilani, Dubai Campus, UAE aganeshrk95@gmail.com, byashaancooper@gmail.com, cvishank94@gmail.com drkarthikeyan@dubai.bits-pilani.ac.in, eperisamy@dubai.bits-pilani.ac.in Keywords: Computational Fluid Dynamics, Airfoil, Viscous flow, NACA 0012, ANSYS Fluent, MATLAB, Genetic algorithm, XFoil Abstract.
It is a significant factor in almost any type of vehicle design, including automobiles since air flows around them as well.
It is the cross sectional profile of any aerodynamic structure which is used to analyse the aerodynamic properties.
Since all the important physical mechanism which affect airfoil performance are represented in the overall computational model any airfoil modifications which are found to affect performance can be relied on to have a physical rather than numerical basis.
Online since: September 2014
Authors: Mu Sen Li, Bao Min Li, Ye Yan, Cheng Nan Li, Wei Du, Yu Hong Gai
Many fatigue tests show that the failure of ball screw pair may end with wear or fracture of nuts, which is a significant factor shortening the life of the ball screw pair and affecting its reliability.
Carbide uniformity has significant influence on the mechanical properties and service life of the nut under cyclic impact loads.
Showing 23961 to 23970 of 25809 items