立方晶粒正交板材弹性与塑性参数的单轴拉伸测量方法
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摘要
利用引入材料织构系数的正交金属板材弹性张量和塑性屈服函数,建立了用简单拉伸实验测量正交金属板材弹性常数和塑性参数的一般方法。在此基础上,在Zwick Z100电子万能试验机上,采用单轴拉伸实验方法,测量了某金属板材的所有弹塑性参数。实验过程中,对应变场的测量采用了Zwick自带的纵横向电子引伸计和ARAMIS三维光学应变测量系统两种变形测量方法,两种方法得出的结果相近,验证了相关实验数据的可靠性。
A general methodology for obtaining the elastic constant and plastic parameters of cubic crystal orthogonal sheet metal by tensile test was developed,in which the elastic tensor and plastic yield function including material texture coefficients were applied. On basis of the newly developed method,uniaxial tensile tests by Zwick Z100 universal testing machine were carried out to obtain the elasticplastic parameters of a certain steel sheet. In the tests,strain field measurements were accomplished by using two types of extensometers,viz.,Zwick's own crossbar electronic extensometer and ARAMIS 3 D optical strain measuring system. It is observed that the strain field measurement results of the two kinds of extensometers are close,which confirms the reliability of testing results.
A general methodology for obtaining the elastic constant and plastic parameters of cubic crystal orthogonal sheet metal by tensile test was developed,in which the elastic tensor and plastic yield function including material texture coefficients were applied. On basis of the newly developed method,uniaxial tensile tests by Zwick Z100 universal testing machine were carried out to obtain the elasticplastic parameters of a certain steel sheet. In the tests,strain field measurements were accomplished by using two types of extensometers,viz.,Zwick's own crossbar electronic extensometer and ARAMIS 3 D optical strain measuring system. It is observed that the strain field measurement results of the two kinds of extensometers are close,which confirms the reliability of testing results.
引文
[1]MAN C S.On the constitutive equations of some weakly-textured materials[J].Archive for Rational Mechanics and Analysis,1998,143(1):77-103.
[2]MAN C S.On the correlation of elastic and plastic anisotropy in sheet metals[J].Journal of Elasticity,1995,39(2):165-173.
[3]HILL R.A theory of the yielding and plastic flow of anisotropic metals[J].Proceedings of the Royal Society London A,1948,193:281-297.
[4]HILL R.Consititutive modelling of orthotropic plasticity in sheet metals[J].Journal of the Mechanics Physics of Solids,1990,38:405-417.
[5]LOGAN R W,HOSFORD W F.Upper-bound anisotropic yield locus calculations assuming<111>-pencil glide[J].International Journal of Mechanical Sciences,1980,22(7):419-430.
[6]HOSFORD W F.The mechanics of crystals and textured polycrystals[J].New York:Oxford University Press,1993.
[7]HUANG M J,LI A M.General Hosford yield functions of orthorhombic materials[J].Archive of Applied Mechanics,2014,84:1165-1172.
[8]HUANG M J,MAN C S.A generalized Hosford yield function for weakly-textured sheets of cubic metals[J].International Journal of Plasticity,2013,41:97-123.
[9]HUANG M J,CHENG H H.Determination of all elastic and plastic parameters for sheets of cubic metals only by uniaxial tension tests[J].European Journal of Mechanics A/Solids,2015,49:539-547.
[10]吴萍,何占慧,黄模佳.金属板材弹性性质与塑性性质关联性的数值验证[J].塑性工程学报,2012,19(5):82-87.WU Ping,HE Zhanhui,HUANG Mojia.Verification of relation of elastic property and plastic property in sheet metal by numerical method[J].Journal of Plasticity Engineering,2012,19(5):82-87.
[11]熊拥军,刘同成,闫小青,等.ARAMIS应变测量系统在铝合金材料拉伸试验中的应用[J].塑性工程学报,2018,25(4):298-304.XIONG Yongjun,LIU Tongcheng,YAN Xiaoqing,et al.Application of ARAMIS strain measuring system in tensile test of aluminum alloy[J].Journal of Plasticity Engineering,2018,25(4):298-304.
[12]杨凤,黄模佳,赵腾飞,等.包含织构系数的任意应力状态下六角晶粒正交板材屈服函数理论研究[J].塑性工程学报,2017,24(6):157-164.YANG Feng,HUANG Mojia,ZHAO Tengfei,et al.Theoretical research on yield function for hexagonal crystallite orthorhombic sheets considering texture coefficients in any stress state[J].Journal of Plasticity Engineering,2017,24(6):157-164.
[2]MAN C S.On the correlation of elastic and plastic anisotropy in sheet metals[J].Journal of Elasticity,1995,39(2):165-173.
[3]HILL R.A theory of the yielding and plastic flow of anisotropic metals[J].Proceedings of the Royal Society London A,1948,193:281-297.
[4]HILL R.Consititutive modelling of orthotropic plasticity in sheet metals[J].Journal of the Mechanics Physics of Solids,1990,38:405-417.
[5]LOGAN R W,HOSFORD W F.Upper-bound anisotropic yield locus calculations assuming<111>-pencil glide[J].International Journal of Mechanical Sciences,1980,22(7):419-430.
[6]HOSFORD W F.The mechanics of crystals and textured polycrystals[J].New York:Oxford University Press,1993.
[7]HUANG M J,LI A M.General Hosford yield functions of orthorhombic materials[J].Archive of Applied Mechanics,2014,84:1165-1172.
[8]HUANG M J,MAN C S.A generalized Hosford yield function for weakly-textured sheets of cubic metals[J].International Journal of Plasticity,2013,41:97-123.
[9]HUANG M J,CHENG H H.Determination of all elastic and plastic parameters for sheets of cubic metals only by uniaxial tension tests[J].European Journal of Mechanics A/Solids,2015,49:539-547.
[10]吴萍,何占慧,黄模佳.金属板材弹性性质与塑性性质关联性的数值验证[J].塑性工程学报,2012,19(5):82-87.WU Ping,HE Zhanhui,HUANG Mojia.Verification of relation of elastic property and plastic property in sheet metal by numerical method[J].Journal of Plasticity Engineering,2012,19(5):82-87.
[11]熊拥军,刘同成,闫小青,等.ARAMIS应变测量系统在铝合金材料拉伸试验中的应用[J].塑性工程学报,2018,25(4):298-304.XIONG Yongjun,LIU Tongcheng,YAN Xiaoqing,et al.Application of ARAMIS strain measuring system in tensile test of aluminum alloy[J].Journal of Plasticity Engineering,2018,25(4):298-304.
[12]杨凤,黄模佳,赵腾飞,等.包含织构系数的任意应力状态下六角晶粒正交板材屈服函数理论研究[J].塑性工程学报,2017,24(6):157-164.YANG Feng,HUANG Mojia,ZHAO Tengfei,et al.Theoretical research on yield function for hexagonal crystallite orthorhombic sheets considering texture coefficients in any stress state[J].Journal of Plasticity Engineering,2017,24(6):157-164.
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