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Johnson-Cook dynamic constitutive relationship for TC16 titanium alloy YANG Yang(杨扬), ZENG Yi(曾毅), WANG Bing-feng(汪冰峰) School of Materials Science and Engineering, Central South University... was proposed to determine the coefficients in J-C model easily and to avoid the estimation of the adiabatic temperature rising. The Johnson-Cook dynamic constitutive relationship for TC16 was obtained......
as strain rate was analyzed. The materials parameters and the apparent activation energy were calculated. The constitutive relationship was established with a Zener-Hollomon (Z) parameter. The results show... activation energy is estimated to be 129-153 kJ/mol, which is close to that for self-diffusion of magnesium. The established constitutive relationship can reflect the change of flow stress during hot......
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ARTIFICIAL NEURAL NETWORK MODEL OF CONSTITUTIVE RELATIONSHIP FOR 2A70 ALUMINUM ALLOY Y.Y. Yang1,Y. Lu1,D.B. Shan1,F. Liu1 (1.School of Materials Science and Engineering, Harbin Institute... increases with the increase of strain rates. On the basis of experiments, the constitutive relationship of the 2A70 aluminum alloy was constructed using a BP artificial neural network. Comparison......
J. Cent. South Univ. Technol. (2008) 15: 387-391 DOI: 10.1007/s11771-008-0073-0 Constitutive relationship of ionic polymer-metal composite and static response character of its cantilever setup... performance parameters and the relationship between the deformation and the electrical parameters of the IPMC were studied. With the digital speckle correlation method, the constitutive relationship......
J. Cent. South Univ. Technol. (2011) 18: 36-41 DOI: 10.1007/s11771-011-0655-0 Hot deformation behavior and constitutive relationship of Q420qE steel YU Bao-jun(禹宝军)1, 2, GUAN Xiao-jun(关小军)1, 2.... Constitutive relationship of hot deformation of AZ91 magnesium alloy [J]. Acta Metallurgica Sinica, 2008, 44(11): 1378-1383. (in Chinese) (Edited by YANG Bing) Foundation item: Project......
Hot compressive deformation behavior and constitutive relationship of Al-Zn-Mg-Zr alloy with trace amounts of ScLI Bo(李波)1, PAN Qing-lin(潘清林)1, 2, LI Chen(李晨)1, ZHANG Zhi-ye(张志野)1, YIN Zhi-min(尹志民)1... evolutions. Based on the hyperbolic Arrhenius-type equation, the true stress-true strain data from the tests were employed to establish the constitutive equation considering the effect of the true strain......
Constitutive relationship of IN690 superalloy by using uniaxial compression testsSUN Chaoyanga,LIU Jinronga,LI Ruia,ZHANG Qingdonga,and DONG Jianxinb a School of Mechanical Engineering,University... annealed material.The constitutive relations between flow stress and effective strain,effective strain rate as well as deformation temperature were studied.It can be concluded that the flow stress......
; Stress-strain relationship of unsaturated cohesive soil MEI Guo-xiong(梅国雄)1, CHEN Qi-ming(陈启明)2, JIANG...; Abstract: A moisture-content based constitutive model was proposed based on the hyperbolic model......
Constitutive Relationship and Hot Processing Maps of Mg-Gd-Y-Nb-Zr AlloyZhaohui Zhou,Qichao Fan,Zhihui Xia,Aiguo Hao,Wenhua Yang,Wei Ji,Haiqiao CaoInstitute of Machinery Manufacturing Technology, Chinese Academy of Engineering Physics摘 要:The hot working behavior of Mg-Gd-Y-Nb-Zr alloy was investigated using constitutive model and hot processing maps......