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引用次数: 0
摘要
摘要 本文介绍了 EN AW 7075-T6 铝合金的裂开霍普金森压力棒试验。该试验用于高应变率下的材料测试。有两种测量方法。第一种情况是使用一种尺寸的试样和不同的初始压力。第二种情况是设置一个初始压力和三个不同长度的试样。根据测量数据，找到了用于有限元分析的约翰逊-库克材料模型常数。
Comparison of Measurement of Aluminium Alloy in High Strain Rate
Abstract This article describes the Split Hopkinson Pressure Bar test of aluminium alloy EN AW 7075-T6. This test is used for material testing at a high strain rate. Two approaches in measurement. In the first case was used one size of specimen and different initial pressure. In the second case was set one initial pressure and three different lengths of specimen. Based on measured data, constants of Johnson-Cook material model for FEM analysis were found.
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