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Online since: September 2016
Authors: Jian Ming Gong, Xiao Wei Wang, Yong Jiang, Xin Huang, Wei Zhang
These parameters have been validated through the comparison of experiment data with the simulated data.
In comparison with P91, P92 steel possesses higher creep rupture strength with an addition of 1.8%W and a reduction of the Mo content from 1 to 0.5% [1].
Displacement control at strain amplitude of 0.6% in fully reversed manner with strain rate of 1.0×10-3 s-1 was applied in order to get the same strain range as that for the experimental data.
It was found that the simulated results both at the initial stage and the stable stage agree with the experimental data very well.
Online since: August 2021
Authors: Mxolisi Brendon Shongwe, Samson Olaitan Jeje, Azeez Lawan Rominiyi, Peter Apata Olubambi
The microstructure of Ti-7Al-1Mo revealed a lamellar structure with alpha (α) phase and minor beta (β) phase with visible grain boundaries, while TiN reinforced Ti-7Al-1Mo composite microstructure shows a bimodal structure with reduction in the lamellar structure.
Romero et al. [13] reinforced Ti matrix with varying wt.% of TiN using powder metallurgy approach, Falodun et al. [12] studied the effect of TiN ceramic addition on the microstructure and wear properties of spark plasma sintered Ti-6Al-4V, and Kgoete et al. presented the data on the effect of TiN addition to Ti-6Al-4V sintered via SPS.
PW1710 Philips X-ray diffractometer (Cu_Kα radiation, λ=0.154 nm, 2θ range = 20-100°, at 45kV/25 mA, count time = 1 s for 0.0167° step) was employed for the phase identification while the raw data generated was extracted and analyzed using X’pert HighScore software. 5mm × 5 mm × 10mm (length × width × height) dimensioned sample was cut out of the sintered sample for the compression test using Instron-1175 mechanical testing machine at room temperature.
The height reduction was set at a maximum of 55 %.
Online since: April 2016
Authors: Jónas Thór Snaebjornsson, Eythor Rafn Thorhallsson
The two different sources of excitation yields different data.
For buildings B and C the earthquake data provides input-output type of data.
Most of the data available is triggered data, i.e. the sampling is started when the acceleration levels exceed a predefined threshold.
In fact a continuous reduction in natural frequency (stiffness) has been observed during the observation period.
Damping evaluation using full-scale data of buildings in Japan.
Online since: August 2011
Authors: C. Pappalettere, C. Casavola, V. Moramarco
The material constants were based on previous experimental data conducted on the same material.
The material model behaviour was fitted to previous experimental data obtained on the same material.
The comparison between the numerical results and experimental data appears to be in good agreement.
Figure 6 Comparison between the experimental data and numerical model results of the indentation after impact.
Davis: Concise Metals Engineering Data Book (ASM International, 1997).
Online since: July 2015
Authors: Nor Azalina Rosli, Rosmina A. Bustami, Fadzren Hipni, Mohamad Anuar Kamruddin, Mohd Hafiz Zawawi
The experimental data fitted very well the pseudo second order in kinetic model for both activated carbon where the adsorption controlled by chemisorptions.
According to data reported by the Ministry of Agricultural and Agro- Based Industry Malaysia, the annual production of jackfruit in 2011 was projected at 56,631 MT, translating to approximately 33,979 MT of jackfruit peel as by products [7].
The linear forms of two equations (Langmuir and Freundlich isotherms) were applied to fit the equilibrium data as they were commonly used by most of the researchers.
Based on the experimental data, JPAC correlated reasonably well with Freundlich isotherm whereas Langmuir isotherm well fitted with the equilibrium data for adsorption of CAC.
The experimental data fitted very well the pseudo second order in kinetic model for both activated carbon where the adsorption controlled by chemisorptions.
Online since: February 2012
Authors: Jean Savoie, Mehdi Saboori, Javad Ghoulipor, Henri Champliaud, Augustin Gakwaya, Priti Wanjara
Utilization of the stress-strain data after necking can improve the quality of the FE analysis by employing realistic data for extrapolating the stress-strain curve.
Based on previous studies on SS321 [9] it was shown that the Swift hardening law (Eq. 1) better predicts the experimental data.
Also, the load-displacement results obtained from Swift law is lower than the experimental data (i.e. lower bound).
In the second approach, to extrapolate the stress-strain curve after the neck, the experimental data was used for Eq. 13.
For each approach, the pulling load versus displacement curve was extracted from the FE model and compared to the experimental data.
Online since: June 2011
Authors: Xiao Kun Miao, Ming Yang Li
The GM(1,1) developed by converting the original data series into a monotonically increasing data series through a preliminary transformation is called accumulated generating operation (short for AGO).
Using the AGO technique to reduce the noise of the original data series efficiently, and the new data series generated will approximately exhibit exponential behavior.
Applying grey system theory and based on data processing to put forward accumulated or inverse accumulated generating operation, the randomness of data sequence is weaken by generating, thus converting to relative regular data sequence, that is the process of converting stochastic process to grey process [4-6].
If applying accumulated generating operation for data processing, let (2) Then get the new data sequence (3) The randomness of this new data sequence will be weaken, which can process n times.
——new data sequence, which are obtained by using original data in accumulated generating process.
Online since: May 2013
Authors: Kamel Moussaoui, Michel Mousseigne, Johanna Senatore, Pierre Lagarrigue, Yves Caumel
As far as milling is concerned, a reduction in the volume of β grains was observed under the machined surface when the cutting speed increased [11].
However, a reduction in microhardness is observed from 10-12 µm, distributed over varying depth according to the different studies [8,11,12].
They were determined from the machine’s capacity, the resistance of the cutters and Airbus data.
Increase in the cutting speed leads to a reduction in residual stresses (E2/E4 and E3/E5).
A reduction in residual stresses was seen with the increase in cutting speed and depth of pass.
Online since: November 2025
Authors: János Lukács, Péter Zoltán Kovács, Abdulhakim Shukurea
K [1], the usage of aluminium in automotive applications has been linked to weight reductions of up to 50%, significantly improving the overall performance of vehicles.
Several studies, including those by [3], have demonstrated that even small reductions in vehicle weight can lead to substantial improvements in fuel efficiency.
This reduction is likely due to the improved ductility of the 6082-T0 alloy, which facilitates easier deformation during the joining process.
The fatigue load range-number of cycles to failure life (ΔL-N) curves were constructed on a single logarithmic scale, utilizing the test data and the least squares method (LSM) for fitting.
Tennis, ‘Lightweight material for weight reductions in an automotive suspension part lower link’, Materials Today: Proceedings, p.
Online since: August 2013
Authors: Ying Wu, Bin Li
Under voltage of 220V, this article has carried out ignition test of three categories of combustible substance including polyurethane foam, cotton cloth and newspaper by simulation of short-circuit fault of aluminum conducting wire, so as to get the characteristic parameters of ignition of combustible substance due to short-circuit bead at different heights, summarize the distribution of fire origins for ignition of polyurethane foam due to short-circuit bead at different heights, and provide detailed fundamental data and effective technical support to fire disaster researchers of primary-level fire protection during onsite investigation.
Introduction During the actual work of electric wire/cable, due to the fact that line is subject to long-term external conditions such as dampness and corrosion, aging of wire/cable is accelerated, causing reduction of insulation performance.
See the specific data of ignition of different combustible substances at different short-circuit height as per table 5.6.
These fundamental ignition data can provide detailed fundamental data and effective technical support to fire disaster researchers of primary-level fire protection during onsite investigation.
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