THE DYNAMIC COMPRESSION TESTING OF SOLIDS BY THE METHOD OF THE SPLIT HOPKINSON PRESSURE BAR
THE DYNAMIC COMPRESSION TESTING OF SOLIDS BY THE METHOD OF THE SPLIT HOPKINSON PRESSURE BAR
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DOI：
10.1016/0022-5096(63)90050-4
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发表时间：
1963-01-01
影响因子：
5.3
通讯作者：
HUNTER, SC
中科院分区：
文献类型：
--
作者：
DAVIES, EDH;HUNTER, SC
某些金属的力学行为（退火铜、铝、镁、锌和黄铜）和聚合物（聚甲基丙烯酸甲酯，聚乙烯，聚氯乙烯，聚四氟乙烯，聚己内酰胺和填充橡胶）的压缩载荷循环30微秒的持续时间进行了实验研究。圆柱形试样，可比的长度和直径，夹在两个（弹性）杆之间，并在通过爆炸丸的爆炸而引入其中一个杆的自由端的压缩应力波的作用下变形。用平行板电容传声器对另一杆自由端的位移-时间关系进行了实验测量。试样的力学性能是从位移-时间记录的分析中得出的;在分析中考虑了所有动态试验工作中固有的应力和应变的不均匀性。
The mechanicalbehaviour of some metals (annealed copper, aluminium, magnesium, zinc and brass) and polymers (polymethylmethacrylate, polyethylene, polyvinyl chloride, polytetrafluoroethylene, polycaprolactam and a filled rubber) has been investigated experimentally for compressive loading cycles of 30 ∽sec duration.Cylindrical specimens, of comparable length and diameter, were sandwiched between two (elastic) rods and deformed under the action of a compressive stress wave induced into the free end of one of the rods by the detonation of an explosive pellet. Experimental measurements were made of the displacement-time relation for the free end of the other rod, using a parallel plate condenser microphone.The mechanical behaviour of the specimen is derived from an analysis of the displacement-time records; in the analysis allowance is made for the non-uniformity of stress and strain inherent in all dynamic testing work.