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Online since: October 2011
Authors: Wen Xiao Zhang, Guo Dong Gao, Guang Yu Mu
T[˚C] Young’s modulus E[Mpa] Yield strength σ0.2[Mpa] Fracture limit σb[Mpa] Elongation Δ[%] Reduction of area Ψ[%] Poisson ratio μ 20 2.034E5 382 636 26.35 6.85 0.3 400 1.761E5 345 574 20.35 48.57 0.3 Geometry of Specimens.
Test Results According to the experimental data, the relationship between the fatigue life (N) and the crack length (a) are shown in Fig.2.
Online since: January 2011
Authors: M. Chabaat, H. Ayas
It is known that for a point force applied at ξ with respect to the main crack-tip, the following potential functions are given by [5]; (2) where γ stands for the dislocation data and is given by [6]; (3) For a force dipole as shown in Fig.1, previous potential functions Eqs. (2) can be written as; (4) and using the following differential operator; (6) (5)  Eqs. (4) become;
As evident, a micro crack located closer to the main crack dominate the resulting interaction effect and reflect an anti-shielding of the damage while a reduction constitutes a material toughness. 4- Conclusion It is shown in this study by using potential complex based on Muskhelishvili’s formalism; Green’s functions for the Stress Intensity Factor are employed to quantify the effects on a crack of a micro crack represented by a dislocation dipole.
Online since: April 2014
Authors: Mojtaba Ghodsi, Soheil Talebian, Yousef Hojjat, Mohammad Reza Karafi
One of the limitations of investigations [1-3], is the large number of experiments to provide sufficient data for the theoretical model.
By combination of hyperbolic tangent and Preisach models, a new hybrid model was proposed to simulate the frequency-independent and frequency-dependent hysteresis, which leads to reduction in the number of tests required.
Online since: December 2012
Authors: Shuai Lin, Zhi Qiang Ju
According to build good experimental platform, measured data is shown in Fig 6.
Kung: A New Identification Method and Reduction Algorithms via Singular Value, Systems and Comp, CA, Vol 4(1):3-15 (1978)
Online since: October 2011
Authors: Jun Li, Quan Li Ning, Chuang Liu
The factory offers the data: The performance parameter of steel material of the bottom of projectile (Medium A): ,,,,; The performance parameter of support-tile (Medium B) :,,,,; The performance parameter of connection-part (Medium C) : ,,,,。
Reflection wave and transmission wave are both load reduction wave.
Online since: December 2014
Authors: Zong Jiu Zhu, Jun Hong Xiao, Guang Xian Shao
Until the end of the fiber under the role of the interior light reduction device get the convergence beam scattered out to lighting.The entire optical path map as shown in Figure 1.
Therefore, the above data into the empirical formula(1-1), Can be calculated Ae =0.111483m2 .
Online since: February 2013
Authors: Xiao Xia He, Sen Liu, Zhu Jun Li
., Ltd.) and Data Precision Photometric Test Instrument (Heshan Perfect Dyeing Equipment Factory Co., Ltd.) were used during dyeing and testing.
Slopek, Energy, water and pollution reduction with fiber reactive dyes and cationized cotton, Colourage. 52 (2005) 61-66
Online since: September 2014
Authors: Jin Xiang Fu, Kun You, Si Peng Cao, Di Wang
Table 4 The list of monitoring indicators selection Industry category Monitoring indicators Thermal power COD, suspended soilds, sulfide, oil, volatile (3) Checked stage Comprehensive evalution index of three parameter caluation formula is[9]: (3) X-Three paramter comprehensive evalution index P-Average index P=Cij/Si f-standard rate Checked stage adopt 2011 monitoring data and comprehensive evaluation index method to optimize and select, its result is shown in the table 5.
The Study on Technique of Basin Water-Quality Target Management—the Control-Unit-based Effluent Permit Limits and pollution Reduction Technology Assessment.
Online since: September 2010
Authors: Balázs Zsolt Farkas, Márton Takács
Ultra precision machining generates extreme geometrical accuracy and surface roughness in the case of larger dimensions, while micro machining aims the main principle of size reduction.
An etalon unit was measured be the microscope, too, so the surface roughness data can be weighted, and compared to the results of other measuring methods.
Online since: April 2012
Authors: Chun Chen, Peng Xin Zhang, Wei Min Yang
Fig.3 The radial basis function neuron of having R dimension input This paper chooses Guass function as radial basis function,for the radial basis layer neuron ,it uses the vector distance of neuron j’s weight vector and input vector to multiply by the deviation bj,and uses the product as basis function’s input.The mathematical expression of radial basis neuron j’s input is : ,=1,2...R (4) The mathematical expression of radial basis neuron j’s output is: , (5) With the reduction of the distance of and ,radial basis function’s output value will increase;When the distance of and is 0,that is when the weight vector eaquls to the input vector ,the radial basis function’s input is 0,and the maximum outuput is 1.
Testing result.The calculated results of three experiments are 0.778L,0.782L and 0.791L,the average value is 0.784L,so the error is 2.04%.Then input the data into MATLAB for three-dimensional restoration,and compare with the actual material stack,the calculated result is close to the reality,so the accuracy is satisfied with the actual need.
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