用镁合金分离式Hopkinson压杆研究三种分子量聚乙烯的高应变率行为
The high strain-rate behaviour of three molecular weights of polyethylene examined with a magnesium alloy split-Hopkinson pressure bar
摘要：
在传统的分离式Hopkinson压杆系统上增加了ZK60A镁合金压杆，以提高对低密度、高密度和超高分子量聚乙烯试样的数据分辨率。结果发现，ZK60A的低密度允许发射脉冲幅度的适当增加，而其相对较高的屈服强度提供了系统的长期可靠性。使用高速摄像机验证了从安装的应变片获得的数据的准确性，并发现是一个很好的匹配。
英文摘要：
A traditional split-Hopkinson pressure bar system has been modified by the addition of ZK60A magnesium alloy pressure bars in order to increase the resolution of data when examining specimens of low-density, high-density and ultra-high molecular weight polyethylene. It was found that the low density of the ZK60A allowed a decent increase in transmitted pulse amplitude, whilst its relatively high yield strength afforded long-term reliability of the system. The accuracy of data obtained from the fitted strain gauges was verified with the use of a high-speed video camera, and was found to be an excellent match.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
