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Online since: May 2020
Authors: A. Nikolaev, Elena Nikolaeva
In combination with unfavorable factors (low temperature, metal hypoductility and an unsuccessful joint form) residual stresses lead to a decrease of load carrying capacity of a whole structure.
Studies have allowed us to establish the relationship between the structure and magnetic properties and to evaluate the feasibility of applying the Barkhausen noise method to welded structures.
Non-destructive testing methods are based on the relationship of physical properties and residual stresses [11,12,16-19].
The Barkhausen noise method is used for estimation of the surface residual stresses in aircraft bearings [20], for detection of grinding burns [21-23], for measuring the depth of the carburized case and other parameters of the structure that can affect the ferromagnetic properties of steel [24-25].
Vlasov, Effect of heat treatment conditions on structure and properties of high-speed steel, IOP Conf.
Online since: December 2012
Authors: Lin Wang
These three references have been used as key factors to present mandibular movements [3].
Also in a practical situation, it is too difficult to determine some clinical uncertain factors (e.g. point A and D in Fig. 4 are only concept points).
Different foods have different mechanical properties.
(b) (c) (a) Fig. 5 Three Factors Control the Crush/Shear Ratio Developed by Teeth [5] During tooth movement, every tooth traces a path over the surface of a sphere, centered at the working condyle, with a radius equal to the distance between itself and the working condyle [5].
The directions and magnitude of muscles are significantly affecting bite force B on teeth and chewing efficiency.
Online since: June 2011
Authors: Xiu Li Du, Zuo Hu Wang, Jing Bo Liu
Different factors were taken into consideration: the type of prestressing tendons and the shear span ratio.
The shear failure modes and the influence of different factors on shear behavior were investigated in details.
The properties of the steel cables and CFRP tendons were shown in Table 2.
The most important factor to affect the failure modes was the shear span ratio.
Different factors were taken into consideration.
Online since: April 2008
Authors: Xiao Zhi Hu, Bao Zong Huang, Feng Peng Zhang, Li Jun Zhao
The strength and failure probability of interface bonding are the most considerable factors to affect the damage and failure of SFIs.
On the other hand, the damage and failure of SFIs are also different from that of common short fiber composites, since SFIs are very thin and more attention focus on the off-plane properties.
The equivalent properties of fibers with interface damage were obtained by FE analysis for representative volume element.
After introducing the equivalent undamaged fibers, the common Mori-Tanaka method may be applied to predict the property of damaged SFIs.
The bonding strength and failure probability of interface are the most considerable factor to affect the damage and failure of SFIs.
Online since: July 2021
Authors: Elena A. Chekalova, Andrey V. Zhuravlev
Structure and Properties of a Local Diffusion Discrete Coating Applied to High Speed Steel E.A.
Investigations of metallographic and mechanical properties of local diffusion discrete oxide coating on high-speed steel Р6М5 have been carried out.
To increase the wear resistance of the coated tool, alloying elements are used as soft interlayers: Zr, Mo, Al, etc., which affect the structure and physical and mechanical properties of the coatings.
The aim of this work is to study the mechanical properties of a local diffusion discrete oxide coating on tool materials.
Discussion of the Results of the Study The determination of the mechanical properties of the developed coatings was carried out by kinetic indentation with the registration of indentation diagrams in the coordinates «load-indentation depth».
Online since: June 2017
Authors: De Fu Li, Hai Bao Wu, Xing Gang Li, Guo Qiang Chai
In addition, the mechanical properties of the composites after plastic deformation will change significantly.
However, the power spinning is a complicated process under the coupling of multiple factors, and the continuous local loading makes the material non-uniformly deformed.
More and more studies have been done to establish the whole process simulation considering process parameters, microstructure, and macroscopic response [43] to understand how the various process parameters affect macro-mechanical properties by affecting the microstructure at a deeper level.
However, the mechanical properties of the PRAMCs are greatly affected by the preparation process, environment and raw material properties, and it is difficult to establish a strict mechanical model.
Yuan, Microstructure and Mechanical Properties of 7090 / SiCp Rolled Sheet (in chinses).
Online since: December 2016
Authors: Dariusz Rozumek, Henryk Paul, M. Prażmowski
It allows obtaining a bimetal of a permanent and continuous connection, characterized by good mechanical properties, however, it results in significant changes in the structure of the coupled materials, both in the interface area and in the overlay material [1].
The chemical composition and the mechanical properties was shown in [3,5].
Mechanical properties and the 'quality of the bond'.
Ultrasonic test enabled to examine the continuity of the weld whereas the assessment of mechanical and technological properties was based on shearing, peeling, tensile tests and lateral bending.
Conditions for testing the static mechanical properties are shown in [5].
Online since: April 2013
Authors: Claudio Giardini, Antonio Fiorentino, Elisabetta Ceretti
Because of the high pressure and the contact area involved in the process, high friction stresses act on the tube walls restricting the material flow so reducing the amount of fed material, the part formability and affecting the soundness of the final part and its geometry.
Moreover, the whole tube material is deformed during the process, therefore the tube mechanical properties are improved due to the hardening phenomenon.
The material properties were tested in terms of different k and n values, respectively material strength and hardening coefficient according to the flow stress power law (s = k×en).
Figure 5 and Figure 6 report the results in terms of m values, main effect and interactions between the factors.
In the present paper, the method sensitivity on the material mechanical characteristics is evaluated using a simulation study.
Online since: December 2013
Authors: Sudin Izman, Mohamed Konneh, Bashir Yahaya, Norizah Redzuan
The sintering techniques depend on the dielectric properties of the ceramics.
Microwave-materials interactions Microwave heating of materials is a function of their dielectric properties.
The materials dielectric properties dominantly affecting heating performance are; dielectric constantε', dielectric loss factorε" and loss tangent(tan σ).
(3) Microwave absorbers:- they have good microwave absorption, which depend on their dielectric properties
It not only reduces the chances of thermal runaway but also maintains the following properties as found in direct microwave heating i.e. reduce hazards to human and environment, improved physical and mechanical properties of processed sample, volumetric heating and reduce processing temperature.
Online since: June 2024
Authors: Ahmed M. Tahwia, Nirmen Abdelaziz, Ashraf Mohamed Heniegal, Mohamed Amin
Moreover, factors such as the absorption coefficient, crushing factor, and gradation of particles exacerbate the negative effects on compressive strength (see Table 2).
Realizing that the rate of chloride ion entry into concrete depends on pore structure, which is influenced by factors such as mix design, use of supplementary cementitious materials, hydration process, curing conditions, and aggregate properties.
The focus here is on how the properties of crushed lightweight bricks and plastic waste affect chloride ion entry into sustainable lightweight concrete.
Agwa, Effect of air entraining and pumice on properties of ultra-high performance lightweight concrete, Archives of Civil and Mechanical Engineering 24.1 (2024) 1-19
Concrete: microstructure, properties, and materials.
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