Using SHPB technique and a BP neural network program, the constitutive model of polymers at high strain rates is identified.
利用SHPB技术和自编的BP神经网络程序，以尼龙为代表性研究对象，对高聚物在高应变率下的本构模型进行了辨识。
In this paper, the validity of small specimen SHPB technique was analyzed by numerical simulation and SHPB test of series of dimension LY12 al specimen.
本文结合数值模拟和系列尺寸ly12铝合金试样的SHPB试验对小尺寸(相对于压杆直径，下同)试样SHPB实验的准确性进行了分析和探讨。
A pulse shaping technique has been used in split Hopkinson bar (SHPB) experiment, for ensuring the specimen in dynamic stress equilibrium and loaded under constant strain rate during the test.
在SHPB实验中，通过采用整形器技术，实现实验过程中的应力平衡和常应变率加载。
Because it is hard to obtain dynamic stress equilibrium and constant strain rate in soft materials specimen during the conventional SHPB experiments, a pulse shaping technique is developed.
本文重点针对传统的SHPB实验技术试样中早期应力不平衡和实验中难以达到常应变率加载这两大问题，建立了入射波整形技术。
Because it is hard to obtain dynamic stress equilibrium and constant strain rate in soft materials specimen during the conventional SHPB experiments, a pulse shaping technique is developed.
本文重点针对传统的SHPB实验技术试样中早期应力不平衡和实验中难以达到常应变率加载这两大问题，建立了入射波整形技术。
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