Identification of Johnson-Cook Equation Constants using Finite Element Method
Identification of Johnson-Cook Equation Constants using Finite Element Method
复制标题
利用有限元法辨识 Johnson-Cook 方程常数
作者：
M. Grązka;J. Janiszewski
这项工作的目的是发展一种识别技术的约翰逊库克
铜Cu-ETP样品的方程常数。本文介绍了一种常数法，
识别使用泰勒冲击试验和有限元分析。如今，
常用的常数辨识方法是分离式霍普金森压杆技术。
这种方法非常简单，但需要非常昂贵的实验室设备。执行这一
我们必须做很多不同的测试，以便有足够的信息，
动态特性我们决定准备一个识别过程的算法使用泰勒
冲击试验作为一种基本类型的实验和数值模拟。
The objective of this work is to develop an identification technique of the Johnson-Cook
equation constants for copper Cu-ETP samples. In this paper we describe a method of constant
identification using the Taylor impact test and finite element analysis. Nowadays the most
popular method of constant identification method is the split Hopkinson pressure bar technique.
This method is quite easy but needs very expensive laboratory equipment. To implement this
method we have to make a lot of different tests in order to have enough information about
dynamic properties. We decided to prepare an identification process algorithm using the Taylor
impact test as a basic type of experimental and numerical simulation.