A Viscoplastic Constitutive Equation from Kolsky Bar Data for Two Steels

M. J. Forrestal; B. H. Lim; W. W. Chen

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A Viscoplastic Constitutive Equation from Kolsky Bar Data for Two Steels

机译：来自两个钢的Kolsky Bar数据的粘液组成方程

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AbstractKolsky bar data for viscoplastic materials are usually presented as true stress versus true strain curves at nearly constant values of engineering strain rates. However, constitutive models for numerical simulations require the true axial rate of deformation which is true strain rate. We present a procedure that uses existing data with constant engineering strain rate to obtain a constitutive equation in terms of true strain rate for 304 stainless steel and 4340 Rc 45 steel.

机译：<标题>抽象 ara>用于粘塑料材料的Kolsky条数据通常呈现为真正的应力与真正的应变曲线在几乎恒定的工程应变速率值。然而，用于数值模拟的本结构型模型需要真正的变形速率，这是真正的应变率。我们介绍了一种使用具有恒定工程应变速率的现有数据的程序，以获得304个不锈钢的真实应变速率和4340 rc 45钢的本构方程。

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来源
《Current Forestry Reports》 |2017年第4期|共4页
作者
M. J. Forrestal; B. H. Lim; W. W. Chen;
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作者单位

School of Aeronautics and Astronautics Purdue University;

School of Aeronautics and Astronautics Purdue University;

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原文格式 PDF
正文语种 eng
中图分类林业;
关键词
Kolsky bar; Constant engineering strain rate; True strain rate; Constitutive model for 4340 Rc 45 steel;

机译：Kolsky Bar;恒定工程应变率;真菌率;4340 rc 45钢的本构模型;

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1. Dynamic rock tests using split Hopkinson (Kolsky) bar system e A review [J] . Kaiwen Xia, Wei Yao 岩石力学与岩土工程学报（英文版） . 2015,第001期
2. Quantification of dynamic tensile parameters of rocks using a modified Kolsky tension bar apparatus [J] . S. Huang, Rong Chen, K. W. Xia 岩石力学与岩土工程学报：英文版 . 2010,第002期
3. Quantification of dynamic tensile parameters of rocks using a modified Kolsky tension bar apparatus [J] . S. Huang, Rong Chen, K. W. Xia 岩石力学与岩土工程学报（英文版） . 2010,第002期
4. AN EXPERIMENTAL INVESTIGATION OF THE DYNAMIC AXIAL BUCKLING OF CYLINDRICAL SHELLS USING A KOLSKY BAR [J] . 李铭, 王仁, 韩铭宝力学学报：英文版 . 1994,第003期
5. A Viscoplastic Constitutive Equation from Kolsky Bar Data for Two Steels [J] . M. J. Forrestal, B. H. Lim, W. W. Chen Current Forestry Reports . 2017,第4期

机译：来自两个钢的Kolsky Bar数据的粘液组成方程
6. Inverse Identification at Very High Strain Rate of the Johnson-Cook Constitutive Model on the Ti-6Al-4V Alloy With a Specially Designed Direct-impact Kolsky Bar Device [J] . Guo X., Heuze T., Othman R., Strain . 2014,第6期

机译：采用特殊设计的直接冲击Kolsky棒装置在Ti-6Al-4V合金上以Johnson-Cook本构模型的很高应变速率进行逆识别
7. Thermo-viscoplastic constitutive equation of austenitic stainless steel 310s [J] . A.R. Safari, M.R. Forouzan, M. Shamanian Computational Materials Science . 2013,第Null期

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8. MECHANICAL BEHAVIOUR OF A508 STEEL BASED ON DOUBLE NONLINEAR VISCOPLASTIC CONSTITUTIVE EQUATIONS [C] . B. Tanguy, R. Piques, L. Laiarinandrasana, Advances in Mechanical Behaviour, Plasticity and Damage: Proceedings of EUROMAT 2000 . 2000

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A Viscoplastic Constitutive Equation from Kolsky Bar Data for Two Steels

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