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Online since: March 2011
Authors: Ya Wen Liu, Ke Bin Jiang, Feng Zheng, Yong Ding
The tensile strength of heat affected zones has been tested by Lip H.
The main purpose is to obtain the mechanical parameters of 7A05 aluminum alloy substrate, such as elastic modulus and yield strength, and to draw stress-strain curve.
(1) wheredenotes safety factor.
Tissue and property of 6005A aluminum welded joints[J].
Tensile properties of friction stir welded joints of 2024 aluminum alloys in different heat-treated-state[J].
Online since: February 2024
Authors: Patrick Ehi Imoisili, Tien Chien Jen, Mamookho Elizabeth Makhatha, Malekgatle Linah Mojapelo
For the transesterification process to be successful, there are affected by multiple factors: the nature of the feedstock composition, the alcohol to oil molar ratio, reaction time, temperature, nature, and amount of catalyst and alcohol [2, 4, 25].
Physicochemical properties of Biodiesel.
Most biofuels have different FFA profiles, which is a quality factor that influences the biofuel's oxidative stability and cold flow properties.
International Journal of Food Properties. 20(6) (2017) 1262-1269
Fuel properties of highly polyunsaturated fatty acid methyl esters: prediction of fuel properties of algal biodiesel., Energy Fuels. 26 (2012) 5265–5273
Online since: March 2014
Authors: Rui Bao, Hao Liu, Bin Jun Fei
The crack growth threshold, which is affected by temperature, externally applied stress and their interaction, is one of the key aspects in CFCG study.
For the former case, the threshold value of stress intensity factor range, ΔKth, is selected.
Material mechanical properties are presented in Table 1.
Table1 Tensile properties of FGH97 T(°C) 20 650 690 750 E(GPa) 222.3 187.8 183.1 180.7 σb(MPa) 1510 1330 1311 1150 σ0.2(MPa) 1100 1010 1001 975 δ (%) 24.1 25.3 20.3 18.8 ψ(%) 24.10 26.48 22.15 20.87 Fig.2.Configuration of CT specimen Fig.3 The crack measurement by tool microscope Experiment Discussion.
Chen: Influence of inclusion on the stress intensity factors under thermo-mechanical loads in a PM superalloy [J].
Online since: July 2015
Authors: Mitra Djamal, Mahfudz Al Huda, Warsito P. Taruno, Marlin Baidillah, Mufti Esofita, Ratih Damayanti, Gustan Pari
Introduction Wood has some physical and mechanical properties that can be used to determine appropriate utilization.
One of the wood’s properties that determines the wood strength is hardness.
Then the wood properties were measured and investigated.
Furthermore, factors affecting density also affect wood hardness (except the moisture content because all samples were oven-dried), such as: · Vessel and parenchyma cells.
Besides the factors explained above, the direction in measuring capacitance value also affect wood’s capacitance.
Online since: October 2009
Authors: Ya Zhou Sun, Xue Mei Yu, Hai Tao Liu
Through finite element analysis, the ratio of minimum radius of thickness to the cutting edge tool radius under different conditions of cutting speed and cutter blade was got, the size effect, stress field and cutting force under different cutting depth was got, and comparing and analysis the results, getting the various factors impact on the size effect of micro-milling, it provide a basis for the actual processing.
As well known in micro cutting, the minimum cutting thickness is dependent on the cutting edge radius and the physical properties of workpiece.
Considering that the factors affecting the minimum cutting thickness are more so as to be difficult in determining its value, the popular method in actual production is to calculate in terms of the cutting edge radius [7, 8].
Principal Cutting Force Variation Affected by Size Effect In this segment, the influence of size effect on the principal cutting force was investigated.
Shreyes: Journal of International Journal of Mechanical Sciences, Vol. 49 (2007), pp.650-660
Online since: March 2011
Authors: Ti Kun Shan, Li Liu
These mechanical properties of TRIP steel meet the increasing demand for lighter vehicle weight and better passive safety.
However, the parameters affecting the deformation behavior and the microscopic transformation mechanism are quite complicated, and it may be very difficult to determine a method for the improvement of the mechanical properties merely through experiments.
To obtain accurate numerical solutions, the material model for TRIP steels implemented in simulation algorithms should use reliable descriptions of the influence of the TRIP effect on the elastoplastic properties and the hardening curve [8].It must also take into account the sheet metal anisotropy.
But the TI model, which is applied widely to predict the mechanical properties for the TRIP steels, adopted the Mises yield function.
The TRIP multiphase steels exhibit superior material properties of high strength and good ductility due to strain induced martensitic transformation.
Online since: August 2022
Authors: Puteri Sarah Mohamad Saad, Azyan Mohamad Shabari, Hashimah Hashim
This research aims to study the factors that influence the surface area of the MgO nanofibers due to material preparations and electrospinning parameters.
This technique also economical but still with high aspect ratio and intensify mechanical properties.
The details of surface area properties of different adsorbents are shown in Table 1.
This affected the calcination atmosphere properties.
Hornak et al., Magnesium oxide nanoparticles: Dielectric properties, surface functionalization and improvement of epoxy-based composites insulating properties, Nanomaterials, 8 (2018) 1–17
Online since: November 2005
Authors: Akira Shimamoto, Cheong Cheon Lee
The TiNi fiber reinforced/PMMA composite's mechanical property enhancement and deformation resistance are also studied.
With these desired properties of SMA, it is highly desired to increase the performance of an intelligent material in a high temperature region.
The mechanical properties and the geometry of the specimen are shown in Table 1 and Fig. 5, respectively.
We obtain stress intensity factor range (∆K) from the Eq. (1).
Conclusion The shape memory TiNi fiber reinforced PMMA composite was developed to demonstrate the active enhancement of mechanical properties, especially, fatigue resistance in our proposed new type of smart composite.
Online since: September 2016
Authors: Milena Pavlíková, Zbyšek Pavlík, Jan Fořt, Jaroslav Pokorný, Anton Trník
For the studied material, detailed testing of its hygric, thermal, and mechanical properties is done in order to access its applicability in building practice.
This material had a smooth surface and due to the better mechanical properties the board was reinforced by plastic grid with mesh size 4 x 4 mm and textile insert.
Basic physical properties.
Liquid water transport properties.
However, this material excels due to its mechanical properties.
Online since: September 2013
Authors: Jens Köhler, Bernd Breidenstein, Berend Denkena, Tobias Mörke
Both properties can be influenced by heat treatment and machining.
One of the most influential subsurface properties regarding fatigue life and fracture behavior is residual stress [1].
Besides geometric irregularities, metallurgical alterations on the surface layer were identified to be important factors affecting crack initiation.
Figure 2: Proposed approach Three heat treatments were conducted in order to gain different material properties.
It was demonstrated that material properties determine the applicability and resolution of the presented method.
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