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Online since: August 2007
Authors: Sung Mo Yang, Hee Yong Kang, Hyo Sun Yu, Su Rok Sin, Chai Won Kim
have been presented, most effective performance improvement method is believed to weight reduction of vehicle body materials[1].
Load and displacement that occurred during the experiment were stored in real-time by the data-handling system.
Input data to obtain reliability life cycles N for spot welded joint T K300 k KmolekJ ⋅/4.418 0t sec10 13− 0U molekJ /10384.8 3− × 1500 2000 2500 3000 3500 1000 10 4 10 5 10 6 Calculated data Experimental data(3_7kA) Load Range (N) Number of cycle, N(cycle) Fig.5 Fatigue life for 2 lap spot welded joint with welding current 8kA 1500 2000 2500 3000 3500 1000 104 105 10 6 Calculated data Experimental data(2_8kA) Load Range (N) Number of cycle, N(cycle) Fig. 6 Fatigue life for 3 lap spot welded joint with welding current 7kA 10000 100000 1000000 4 5 6 7 8 9 10 11 HS40R_3_CAL HS40R_2_CAL HS40R_2_EXP HS40R_3_EXP Fatigue Life (cycle) Welding Current(kA) Fig.7 Fatigue life for spot welded joint with welding current Figs. 5 and 6 show the comparison of fatigue lives of 2 lap and 3 lap spot welding specimens, respectively.
This decrease in fatigue life is considered to have contributed to the reduction in weld ability according to welding thickness.
Online since: October 2014
Authors: N.N. Malushin, Denis V. Valuev, A.V. Valueva, A. Serikbol
Data on the effect of superplasticity at γ → α transformation in chromium tungsten weld metal are absent.
From the data in Figure 2 shows that the cooling of the samples of steel Т1 (ASTM USA) with a temperature of 1200° C the effect of kinetic plasticity at the phase transformation, which is manifested in the reduction of temporary stress in the range of martensitic temperature.
From the data in figure 2 shows that in the range of martensitic transformation temporary voltage drops in half to two times as compared with the magnitude of the stress accumulated in the austenite region.
Characterization tool weld metal ductility in the range of martensitic transformation has not previously made, and such data in the literature.
The data obtained in studies on thermal installations microscopy verified by us to develop a method for of surfacing workpieces 100 mm diameter cored wires of different chemical composition.
Online since: May 2015
Authors: Daniel Constantin Anghel, Nadia Belu
Nervous fatigue manifests itself by: reducing accuracy and movement speed reduction reduced visual precision, reduction reactions, headache, dizziness and insomnia.
The Data used for the Experiment The parameters used to train the network are: - Input parameters: the temperature, the humidity, the noise, the lighting, the training degree, the healthy, work program, work rate, physical load, physical wear, appropriate use, reliability and the complexity.
The network training process whit Matlab The network was tested with some different input data located in a separated text file.
In this case, the data sets are considerably reduced.
As it can be seen from the experimental results, the designed feed forward neural network recognizes very well the test data.
Online since: April 2023
Authors: V.V. Chernomas, S.B. Maryin
For an adequate description of the shaping processes implemented in such devices on the basis of certain mathematical models, experimental data on the energy-force parameters of deformation are required, as well as data for the nature of the distribution and intensity of deformations arising in the process during cyclic deformation of a metal product.
A complete revolution of the drive shafts consists of two stages: a reduction stage and an idle stage.
The stage of reduction begins from the moment the workpiece is captured by the vertical surfaces of the sidewalls and ends at the moment of their closest approach.
The obtained experimental data on the distribution and magnitude of irreversible strains of the strip under conditions of (plastic deformation) are essential both for a qualitative understanding of the mechanics of the process and the design of machines for continuous casting and metal deformation.
Online since: May 2014
Authors: Vincent Magnier, Philippe Dufrenoy, Eric Charkaluk, François Demilly, Sofiane Saad
It is based on forging hollow axles which allows a significant reduction in steel consumption.
The final objective is to obtain the cyclic loading paths, in order to provide the data needed for the analysis of fatigue.
This simulation is validated by using experimental forces data (Fig. 8).
In terms of results, the different simulations present a good correlation with the experimental data.
A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures, volume 21. 1983 [15] T.T.
Online since: October 2006
Authors: Hyouk Chon Kwon, Heung Bok Lee, Kyung Hoon Kim, Sung Chul Lim
Some advantages of the semi-solid state processing over the conventional cast include a reduction in the consumption of energy and the cycle time for processing, an extrusion of the die life, elimination of inclusions, improved yield of fine-grained and uniform structures, a reduction in micro- and macro-segregation, shrinkage, micro-porosity and cracking, and enhanced mechanical properties of ingot products [2].
The size of primary solid particle was found to be decreased with increasing cooling rate agreed well with the data of author's previous work.
Online since: June 2012
Authors: Hui Min Liu, Rui Lin Zhang, Zhu Hua Hu, Wei Jie Guo
Introduction Image de nosing is a key step in image processing, noise reduction is used as the pre-processing stage for segmentation, image analysis and interpretation.
Also, wavelet thresholding is a method which has been reported in several studies for noise reduction[1,2].
Through analyzing the experimental data and results, the proposed method preserves the image details and edges while effectively removing noise in the cameraman images.
Online since: June 2014
Authors: Saksorn Limwichean, Kamon Aiempanakit, Thanat Srichaiyaperk, Pitak Eiamchai, Mati Horprathum, Chanunthorn Chananonnawathorn, Pongpan Chindaudom
The results of the film thickness, in comparison with those from SEM, were shown in Fig.2(b) The corresponding data between two techniques indicated that the physical and optical SE models were sufficiently accurate to analyze the WO3 thin films.
As the annealing was increased, thin film annealing treatment at 200oC has spectral transmittance increase due to film has higher transparency, while film annealing treatment at 300-400°C show the reduction in transmittance.
Finally, the optical transmittance spectra show the reduction in the transmittance because of the increased grain size and the oxygen deficiency at the higher substrate temperatures. 5.
Online since: June 2014
Authors: Marcin Wronski, Krzysztof Sztwiertnia, Krzysztof Wierzbanowski, Michal Kotra
In the above formula the following constants were adjusted from experimental data [9,10]: w0=400, Dw=13.70, Da, Da=7.50 and umax=4.56 mm/min corresponds to the maximum value of the boundary migration rate.
a b c d Fig. 1. a) Rolling texture of aluminium (reduction 60%, max. intensity: 18), b) calculated compromise function S(g); max. intensity: 0.67, c) predicted recrystallization texture; max. intensity: 11; texture components marked: cube (), S (), rotated Goss (), d) experimental recrystallization texture of aluminium annealed at 5200; max. intensity: 70 (after [4]).
The starting rolling texture of aluminium (60% rolling reduction) is shown in Fig. 1a, while the compromise function, S(g), calculated on the basis of the deformation texture, is shown in Fig. 1b.
Online since: January 2015
Authors: Nina I. Martemyanova, Natalia D. Turgunova, Aleksandr N. Aleinik
Block-diagram of the device The device consists of an optical transmitter and receiver part for collecting and processing data.
Mounting the sensor with adhesive tape led to a significant reduction of the reading changes.
It is clear from the graph, that the result is the reduction in oxygen saturation.
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