Dislocation-based crystal plasticity FE analysis for kink band formation in Mg-based LPSO phase considering higher-order stress
Dislocation-based crystal plasticity FE analysis for kink band formation in Mg-based LPSO phase considering higher-order stress
复制标题
考虑高阶应力的镁基 LPSO 相中扭结带形成的基于位错的晶体塑性有限元分析
DOI：
10.1016/j.promfg.2018.07.208
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
K. Shizawa
中科院分区：
文献类型：
--
作者：
Yuichi Kimura;Ryo Ueta;K. Shizawa
基于考虑高阶应力的位错晶体塑性模型，对长周期堆垛有序相单晶进行了有限元分析。从应变梯度和尺寸效应的角度讨论了网格对扭折带形成的影响。然后，它表明，网格依赖的扭结变形的有限元分析中，即使当尺度比是相对较小的。同时指出，扭折带中的向错四极结构可以用晶体滑移的不相容性来定性地表示。
An FE analysis has been performed for a single crystal of long-period stacking ordered phase on the basis of the dislocation-based crystal plasticity model considering higher-order stress. The mesh dependence on the kink band formation has been discussed from the viewpoint of the strain gradient and size effect. Then, it is shown that the mesh dependence of kink deformation in the FE analysis can be removed even when the scale ratio is relatively small. Moreover, it is indicated that the disclination quadrupole structure in the kink band can be expressed qualitatively by use of the incompatibility of crystal slip.
单轴压缩载荷下 HCP 单晶扭结引起的晶内取向差的晶体塑性分析
影响因子：
1.2
作者：
T.Mayama;T.Ohashi;Y.Tadano;K.Hagihara
通讯作者：
K.Hagihara
影响因子：
9.4
作者：
Hagihara, K.;Kinoshita, A.;Umakoshi, Y.
通讯作者：
Umakoshi, Y.