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铝合金Aw 5005在高应变率和温度下的霍普金森压杆系统中界面摩擦及试样构型时的动态行为

Dynamic Behavior of Aluminum Alloy Aw 5005 Undergoing Interfacial Friction and Specimen Configuration in Split Hopkinson Pressure Bar System at High Strain Rates and Temperatures.

作者信息

Bendarma Amine, Jankowiak Tomasz, Rusinek Alexis, Lodygowski Tomasz, Jia Bin, Miguélez María Henar, Klosak Maciej

机构信息

Laboratoire d'Innovation Durable et de Recherche Appliquée (L.I.D.R.A), Universiapolis, Bab Al Madina, Qr Tilila, 80000 Agadir, Morocco.

Institute of Structural Analysis, Poznan University of Technology, Piotrowo 5, 60-965 Poznań, Poland.

出版信息

Materials (Basel). 2020 Oct 16;13(20):4614. doi: 10.3390/ma13204614.

DOI:10.3390/ma13204614
PMID:33081228
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7602877/
Abstract

In this paper, experimental and numerical results of an aluminum alloy's mechanical behavior are discussed. Over a wide range of strain rates (10 s ≤ έ ≤ 10 s) the influence of the loading impact, velocity and temperature on the dynamic response of the material was analyzed. The interface friction effect on the material's dynamic response is examined using a split Hopkinson pressure bar (SHPB) in a high temperature experiment using finite element analysis (FEA). The effect of different friction conditions between the specimen and the transmitted/incident bars in the SHPB system was examined using cylinder bulk specimens and cylinder plates defined with four-layer configurations. The results of these tests alongside the presented numerical simulations allow a better understanding of the phenomenon and reduces (minimizes) errors during compression tests at high and low strain rates with temperatures ranging from 21 to 300 °C.

摘要

本文讨论了铝合金力学行为的实验和数值结果。在很宽的应变率范围(10⁻⁵s⁻¹≤ έ ≤ 10³s⁻¹)内,分析了加载冲击、速度和温度对材料动态响应的影响。在高温实验中,使用分离式霍普金森压杆(SHPB)并结合有限元分析(FEA),研究了界面摩擦对材料动态响应的影响。使用圆柱块状试样和定义为四层结构的圆柱板,研究了SHPB系统中试样与透射/入射杆之间不同摩擦条件的影响。这些试验结果以及所呈现的数值模拟结果,有助于更好地理解该现象,并减少(最小化)在21至300°C温度范围内高、低应变率压缩试验期间的误差。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eab9/7602877/992d6d7327c5/materials-13-04614-g015.jpg
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