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首页> 外文期刊>International journal of non-linear mechanics >Deformation and fracture of square plates under repetitive impact loading
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Deformation and fracture of square plates under repetitive impact loading

机译：反复冲击载荷下方板的变形和断裂

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The deformation and fracture of impact loaded thin steel square plates is studied experimentally and numerically. Impacts with low velocities (10-15 m/s) are calculated and an inductive machine (IM) is used as an impact loading device in a developed experimental unit. Impact tests are made for different velocities which correspond to the cases of elastic and elasto-plastic deformation, as well as to punching through the plate. Repetitive impact loading and resulting low cycle punching are both investigated. Experimental data are processed and the coefficients of the dynamic periodic flow equation are determined. A numerical simulation of the impact deformation of plates is performed and the results are compared with the experimental data. The proposed numerical-experimental approach for fracture prediction in plates under repetitive impact loading is also discussed. (C) 2017 Elsevier Ltd. All rights reserved.
机译：实验和数值研究了冲击载荷薄钢板方形板的变形和断裂。计算出低速冲击（10-15 m / s），并在开发的实验装置中将感应电机（IM）用作冲击加载装置。针对不同的速度进行了冲击测试，这些速度对应于弹性和弹塑性变形的情况，以及冲穿板材的情况。都研究了重复冲击负荷和由此产生的低循环冲压。处理实验数据并确定动态周期性流量方程的系数。对板的冲击变形进行了数值模拟，并将结果与​​实验数据进行了比较。还讨论了在反复冲击载荷下所提出的板断裂预测的数值实验方法。 （C）2017 Elsevier Ltd.保留所有权利。

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