为了研究循环加载过程中织构对多晶材料Baushinger效应的影响，利用经典晶体塑性模型及含随动硬化的晶体塑性模型模拟AA6104铝合金循环加载力学行为。研究了多晶体中晶粒取向差异对材料宏观塑性行为的影响。详细分析了经典晶体塑性模型可描述多晶体循环加载Bauschinger效应机理，定量分析了多晶有限元模型中晶体取向差异对模拟结果的影响。结果表明多晶体中由于晶粒取向差异而造成的晶粒间相互作用力使得多晶体模型宏观卸载时晶粒内的残余应力是产生Bauschinger效应的主要原因，采用含随动硬化的晶体塑性模型能够较好地模拟具有织构的AA6014铝合金的循环加载过程。
To study the effect of texture on the Bauschinger effect of polycrystal material, the mechanical behavior of AA6014 aluminum alloy under cyclic loading was simulated by the classical crystal plasticity model and crystal plasticity model with kinematic hardening. The relation between macro?mechanic behavior and crystal misorientation in polycrystalline was analyzed. The effect of orientation difference in polycrystalline finite model on the simulation results was quantitatively analyzed. Moreover, the mechanism of classical crystal plasticity model which could describe Bauschinger effect was researched in detail. The result shows that the internal stress caused by the interaction among the crystals is the main factor that leads to the Bauschinger effect in the macro mechanical behavior, and the crystal plasticity model with kinematic hardening could describe the cyclic loading process of AA6014 aluminum alloy very well.
参考文献
| [1] | ARMSTRONG P J;FREDERICK C K .Berkeley nuclear laboratories,Report No.RD/B/N/731[R].[s.n.]:R & D Department,1966. |
| [2] | CHABOCHE J L;NOUAIHAS D .Constitutive modeling of ratchetting effects:experimental facts and properties of the classical models[J].Journal of Engineering Materials and Technology,1989,111(04):384-392. |
| [3] | CHABOCHE J L .Constitutive equations for cyclic plasticity and cyclic viscoplasticity[J].International Journal of Plasticity,1989,5(03):247-302. |
| [4] | F. Roters;P. Eisenlohr;L. Hantcherli .Overview of constitutive laws, kinematics, homogenization and multiscale methods in crystal plasticity finite-element modeling: Theory, experiments, applications[J].Acta materialia,2010(4):1152-1211. |
| [5] | HILL R;RICE J R .Constitutive analysis of elastic-plastic crystals at arbitrary strain[J].Journal of the Mechanics and Physics of Solids,1972,20(06):401-413. |
| [6] | PIERCE D;ASARO R J;NEEDLEMAN A .An analysis of nonuniform and localized deformation in ductile single crystals[J].ACTA METALLURGICA,1982,30(06):1087-1119. |
| [7] | PIERCE D;ASARO R J;NEEDLEMAN A .Material rate dependence and localized deformation in crystalline solids[J].ACTA METALLURGICA,1983,31(12):1951-1976. |
| [8] | 曹鹏,方刚,雷丽萍,曾攀.多晶铜压缩过程中晶粒取向演化的塑性理论分析[J].金属学报,2007(09):913-919. |
| [9] | Suiker ASJ;Turteltaub S .Computational modelling of plasticity induced by martensitic phase transformations[J].International Journal for Numerical Methods in Engineering,2005(12):1655-1693. |
| [10] | 张少睿,李大永,彭颖红,梁胜.FCC金属板成形率无关晶体塑性模拟[J].材料科学与工艺,2004(04):372-374. |
| [11] | Sarma GB;Radhakrishnan B .Modeling microstructural effects on the evolution of cube texture during hot deformation of aluminum[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(1/2):91-104. |
| [12] | 耿晓亮;张克实;郭运强 等.非均值材料微成形过程的晶体塑性模拟[J].材料科学与工艺,2010,18(03):297-301. |
| [13] | 石艳柯,张克实,胡桂娟.多晶Cu在双向加载下的后继屈服与塑性流动分析[J].金属学报,2009(11):1370-1377. |
| [14] | TOTH L S;MOLINARI A;ZOUHAL N .Cyclic plasticity phenomena as predicted by polycrystal plasticity[J].Mechanics of Materials,2000,32(02):99-113. |
| [15] | 耿晓亮;张克实;郭运强 等.细观非均值性对多晶材料塑性行为的影响[J].金属学报,2006,42(01):49-53. |
| [16] | CAILLETAUD G .A micromechanical approach to inelastic behaviour of metals[J].International Journal of Plasticity,1992,8(01):55-73. |
| [17] | Goh CH.;Neu RW.;McDowell DL. .Crystallographic plasticity in fretting of Ti-6AL-4V[J].International Journal of Plasticity,2003(10):1627-1650. |
| [18] | Zhang M;Zhang J;McDowell DL .Micro structure-based crystal plasticity modeling of cyclic deformation of Ti-6Al-4V[J].International Journal of Plasticity,2007(8):1328-1348. |
| [19] | Shashwat Sinha;Somnath Ghosh .Modeling cyclic ratcheting based fatigue life of HSLA steels using crystal plasticity FEM simulations and experiments[J].International Journal of Fatigue,2006(12):1690-1704. |
| [20] | Bridier, F;McDowell, DL;Villechaise, P;Mendez, J .Crystal plasticity modeling of slip activity in Ti-6Al-4V under high cycle fatigue loading[J].International Journal of Plasticity,2009(6):1066-1082. |
| [21] | KALIDINDI S;BRONTHOST A;ANAND L .Crystallo-graphic texture evolution in bulk deformation processing of FCC metals[J].Journal of the Mechanics and Phys-ics of Solids,1992,40(03):537-569. |
| [22] | MANIATTY A M;DAUSON P R;LEE Y S .A time integration algorithm for elasto-viscoplastic cubic crystals applied to modelling polycrystalline deformation[J].International Journal for Numerical Methods in Engineering,1992,35(08):1565-1588. |
| [23] | HUTCHINSON J W .Bounds and self-consistent estimates for creep of polycrystalline materials[J].Proceedings of the Royal Society of London Series A:Mathematical and Physical Sciences,1976,348(1652):101-127. |
| [24] | HARDER J .A crystallographic model for the study of local deformation processes in polycrystals[J].International Journal of Plasticity,1999,15(06):605-624. |
| [25] | Diard O;Leclereq S;Rousselier G;Cailletaud G .Evaluation of finite element based analysis of 3D multicrystalline aggregates plasticity - Application to crystal plasticity model identification and the study of stress and strain fields near grain boundaries[J].International Journal of Plasticity,2005(4):691-722. |
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