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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >A viscoplastic modeling of sheet metal in the range of large deformation and at low and high strain rates: Application to perforation
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A viscoplastic modeling of sheet metal in the range of large deformation and at low and high strain rates: Application to perforation

机译：大变形范围内，低应变率和高应变率下的钣金粘塑性建模：在穿孔中的应用

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摘要

In this paper a new experimental technique for study behavior of sheet metal in the range of low to high strain rates is applied. The main purpose of this study is to analyse the behavior of sheet metal for an industrial application since variety of industrial processes such as drawing or even crashworthiness, involve at wide range of strain rates. The test method is a combination of two experimental techniques [1] which permits to cover a range of strain rates from 10(-4) to 10(3) s(-1). The combination of two schemes of loading insures a complete characterisation of the shear behavior. On the basis of experimental results an original viscoplastic model is proposed which takes into account strain hardening, strain rate sensitivity and temperature. [References: 5]
机译：在本文中，采用了一种新的实验技术来研究金属板在低应变率到高应变率范围内的行为。这项研究的主要目的是分析用于工业应用的钣金行为，因为诸如拉伸甚至耐撞性之类的多种工业过程都涉及很大的应变率。该测试方法是两种实验技术的组合[1]，可以覆盖从10（-4）到10（3）s（-1）的应变率范围。两种加载方案的组合确保了剪切行为的完整表征。在实验结果的基础上，提出了一个考虑应变硬化，应变速率敏感性和温度的原始粘塑性模型。 [参考：5]

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