On a stress-control method by the use of laminated impactor for the plate impact experiments
Sato Yasuhisa; Komori Masazumi; Suzuki Takeshi
Abstract:The plate impact experiment was made to find out a way of controlling the stress history of target plate. In the experiment, a flat target plate of aluminum alloy was impacted by an impactor plate laminated by two kinds of metal plates, traveling at high velocity. The waveform of stress pulse was measured by the embedded manganin gauges and were compared with the waveform which was calculated on the basis of impedance matching method. The calculated plateau values of stress agreed with the experimental results within 4 per cent error in average. It is shown that the method of using a laminated impactor plate is useful in controlling the history of stress in a target plate. Key Words:plate impact experiment, aluminum alloy, manganin gauges, impedance matching method, dynamic stress control, laminated impactor