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Online since: July 2014
Authors: Li Xin Sun, Hong Dong, Jing Fen Yang
But the code only provides a revise coefficient for few constructions under typical conditions, and does not provide which factors impact on the thermal conductivity and how much they affect.
Environment Dependence Test Thermal conductivity is a function of temperature, moisture content and mechanical factors.
The test is strictly based on《Thermal insulation - Determination of steady-state thermal resistance and related properties-Guarded hot plate apparatus》(GB/T10294-2008/iso 8302: 1991)and《Determination of stead-state thermal transmissivity of a moist building material》(GB/T17370-1998/idt iso10051: 1996)[2,3].
The thermal conductivity are not affected by the compressive creep.
[2] Thermal insulation - Determination of steady-state thermal resistance and related properties - Guarded hot plate apparatus, GB/T10294-2008/iso 8302: 1991 [3] Determination of stead-state thermal transmissivity of a moist building material, GB/T17370-1998/idt iso10051: 1996.
Online since: May 2012
Authors: A.I.O. Zaid
Main parameters affecting relative importance (after Ashby [1] ) material selection Material Properties: These include physical properties: density, melting point, coefficient of thermal expansion, thermal and electrical conductivities.
Each element of these mechanical properties is affected by many factors.
Each of these factors is affected by other elements as indicated by Fig.7.
Factors affecting profit [2] The economic environment determines how large is the total market for a specific product.
First the main factors affecting cutting tools performance in service are considered these are: Material behavior, characteristics, and requirements, design of tools, service conditions and economics and cost.
Online since: November 2021
Authors: Janis Rizhikovs, Aigars Paze, Daniela Godiņa, Ramunas Tupciauskas, Raimonds Makars, Rudolfs Berzins
Evaluation of mechanical properties.
As seen in graphs, the pH value of an adhesive was a critical factor when it comes to the PB mechanical properties.
Overall, lower pH value resulted in better mechanical properties and water resistance.
With the addition of glycerol, the PB mechanical properties also decreased.
However, the mechanical properties for PBs obtained from pH 9 adhesive were not satisfactory.
Online since: June 2013
Authors: Hamidreza Mollagoli, Meysam Heydarian
Several factors could affect product quality grade.
Not considering coil metallurgical and physical condition, there are lots of other factors affecting the quality of the final product, such as alignment of the coils, the geometry of the inner cover, the inherent properties of the gaseous agent and its flow rate.
Mechanical properties of samples.
Table 2 Results of mechanical properties and power consumption for 75 Hz Frequency [Hz] Stack no.
Cottrell: The Mechanical Properties of Matter (1964)
Online since: April 2014
Authors: Hua Qing Lai, Sheng Lu
The role of zinc and how to improve the welding process in order to improve the mechanical properties of joints have been studied[4,6].
The appearance of weld, microstructure, mechanical properties, and composition of the joints were investigated.
Since temperature is one of the major factors influencing the diffusion of atoms[11].
,FeAl, FeAl2, Fe2Al5, FeAl3 etc) will lead to a sharp decline of mechanical properties of joints.
He: Interfacial microstructure and mechanical properties of aluminium and zinc coated steel joingts made by a modified metal inert gas welding-brazing process.
Online since: March 2019
Authors: He Xue, Kai Li, Kuan Zhao, Rui Han Song, Shuai Wang, Ting Wang
However, the reliability of using "indentation method" to test the local mechanical parameters’ results is affected by many factors such as the amount of accumulation/depression around the indentation, the geometry deviation of the indenter, the displacement of the initial contact point and creep, et al.[5].
The accumulation/depression around the indentation is one of the major influencing factors, and it is mainly affected by σ0.2/Er and n, which has been studied by many scholars [6].
Zhou [7] through the analysis of several key factors of nanoindentation testing the mechanical properties of thin films, concluded that the plastic depression would occur around the indentation of all the materials with n>0 when σ0.2 /Er is the larger, but the accumulation/depression phenomenon depends on the working hardening exponent when σ0.2/Er is the smaller.
Vickers Hardness Test and Analysis of Main Influencing Factors[J].
Analysis of Some Key Influencing Factors on Mechanical Properties of Membranes by Nanoindentation[J].
Online since: October 2022
Authors: Khairul Anuar Shariff, Zuryati Ab. Ghani, Tang Liszen, Anis Syamimi Johari
Zirconia is considered to have great mechanical properties due to the physical property known as transformation toughening [3].
The phase transformation of zirconia can influence its strength and mechanical properties.
The sintering condition of zirconia is one of the major factors in getting stable and durable zirconia dental ceramic [4].
Sintering temperature can affect the properties of ceramics through alteration of the particle structure and crystalline phases [5].
Sintering temperature determines the properties of ceramics by affecting the microstructure and the crystalline phases.
Online since: January 2022
Authors: Thi Huong Vu, Ngoc Yen Truong, Hoc Thang Nguyen, Thi Hong Thuy Le, Van Khoi Nguyen, Thi Luong Nguyen, Thanh Tung Nguyen, Thi Thu Ha Pham
Mechanical Properties of Films.
Mechanical properties of HPMC/Sh Composite Films with the various emulsifiers.
Hence, the films had poor mechanical properties [4, 18, 19].
Therefore, it enhances the mechanical properties of the composite films [20].
In addition, the particle size is also one of the factors affecting the viscosity of emulsions.
Online since: December 2006
Authors: Soon Bok Lee, Dong Cheon Baek
Inverse Method to Determine Mechanical Properties of Thin Film by Nanoindentation and Finite Element Analysis Dong-Cheon Baek1, a, Soon-Bok Lee1,b 1 Department of Mechanical Engineering Korea Advanced Institute of Science and Technology 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Korea (ROK) a dcbaek@kaist.ac.kr, bsblee@kaist.ac.kr Keywords: thin film, nanoindentation, finite element method, mechanical properties Abstract.
When the simulated loaddisplacement curve matches the experimental curve, the final set of properties is taken to be that of the unknown material.
Convergence of material properties with iteration At first two trial sets ( 2,1=j ), material properties was assumed and ijP are deduced from finite element simulation from two trial sets.
A good fit to the properties of sample is obtained with applying to Eq. 6 and Eq.7.
The inverse method is proposed to deduce mechanical properties, both E and ν, from experimental load-displacement curve and finite element simulation.
Online since: March 2019
Authors: Juan Luo, Jia Cheng Luo
At the same time, the influence factors of fracture mechanics analysis of RPV under PTS condition are analyzed.
Fig.1 Finite element model Fig. 2 Axial crack indication Fig. 3 Circumferential crack indication Fig. 4 Pressure and temperature load transients Material Properties.
In order to investigate the effects of material properties, especially neutron irradiation flux, on fracture toughness and stress intensity factor, the fracture toughness obtained with the internal surface fast neutron fluence of 0 and 1×1019 n / cm2 are calculated as well, as shown in Fig. 10.
Conclusion Pressurized thermal shock is an important factor affecting the long-term operation of reactor pressure vessels.
Design and construction rules for mechanical components of PWR nuclear islands. 2000
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