Crystal plasticity finite element simulation of lattice rotation and x-ray diffraction during laser shock compression of tantalum

Crystal plasticity finite element simulation of lattice rotation and x-ray diffraction during laser shock compression of tantalum
复制标题

钽激光冲击压缩过程中晶格旋转和 X 射线衍射的晶体塑性有限元模拟

DOI:
10.1103/physrevmaterials.7.113608
复制
发表时间:
2023
影响因子:
3.4
通讯作者:
Avraam P
Avraam P
中科院分区:
材料科学3区
文献类型:
--
作者:
Avraam P

文献摘要

参考文献

相似文献

我们提出了一个晶体塑性模型定制的高压,高应变率的条件下,使用多尺度处理基于位错的滑移动力学。我们使用这个模型来分析显着的塑性诱导晶格旋转观察冲击压缩多晶钽viain原位射线衍射。通过实验测量和模拟纹理演变之间的直接比较,我们可以解释如何的基本滑移动力学的细节控制的晶格旋转的程度,england。具体地说,我们表明,只有高度非线性动力学引起的位错nucleation可以解释的幅度下观察到的冲击压缩旋转。我们证明了我们的晶体塑性模型和X-射线衍射数据之间的良好拟合,并利用这些数据来量化位错成核率,否则在动态压缩制度的实验约束较差。
We present a crystal plasticity model tailored for high-pressure, high-strain-rate conditions that uses a multiscale treatment of dislocation-based slip kinetics. We use this model to analyze the pronounced plasticity-induced lattice rotations observed in shock-compressed polycrystalline tantalum viain situx-ray diffraction. By making direct comparisons between experimentally measured and simulated texture evolution, we can explain how the details of the underlying slip kinetics control the degree of lattice rotation that ensues. Specifically, we show that only the highly nonlinear kinetics caused by dislocationnucleationcan explain the magnitude of the rotation observed under shock compression. We demonstrate a good fit between our crystal plasticity model and x-ray diffraction data and exploit the data to quantify the dislocation nucleation rates that are otherwise poorly constrained by experiment in the dynamic compression regime.
DOI: 10.1007/s40870-020-00254-8
发表时间: 2020
影响因子: 1.7
作者:
Devin Francom;D. Walters;J. Barber;D. Luscher;E. Lawrence;Ayan Biswas;C. Biwer;D. Banesh;J. Lazarz;S. Vogel;K. Ramos;C. Bolme;R. Sandberg;J. Ahrens
通讯作者: J. Ahrens
DOI: 10.1088/0953-8984/20/50/505203
发表时间: 2008-12-17
影响因子: 2.7
作者:
Kimminau, Giles;Nagler, Bob;Wark, Justin S.
通讯作者: Wark, Justin S.
DOI: 10.1063/5.0038557
发表时间: 2021-02-28
影响因子: 3.2
作者:
Heighway, P. G.;Wark, J. S.
通讯作者: Wark, J. S.
DOI: 10.1103/physrevmaterials.3.083602
发表时间: 2019-08
影响因子: 3.4
作者:
P. Heighway;D. McGonegle;N. Park;A. Higginbotham;J. Wark
通讯作者: P. Heighway;D. McGonegle;N. Park;A. Higginbotham;J. Wark
任意应变样品中德拜-谢勒衍射图案的预测
DOI: 10.1063/1.4874656
发表时间: 2013
影响因子: 3.2
作者:
A. Higginbotham;D. McGonegle
通讯作者: D. McGonegle