| 1. | A novel experimental method of hopkinson pressure bar system for brittle material 压杆动态实验新方法 |
| 2. | Analysis on stress uniformity of viscoelastic materials in split hopkinson bar tests 试验中粘弹性材料的应力均匀性分析 |
| 3. | Dynamic behavior of reactive powder concrete in split hopkinson pressure bar testing 试验对活性粉末混凝土动力性能的研究 |
| 4. | A data processing program for shpb experiments is setup to enhance efficiency of data processing 根据hopkinson杆实验数据处理的特点编写了专用程序dataprocess 。 |
| 5. | The dynamic compression and torsional experiments are done for tungsten - molybdenum alloys through split hopkinson pressure bar and torsion hopkinson bar in this paper 本文利用分离式hopkinson杆对钨钼合金进行了动态压缩和扭转试验。 |
| 6. | In this paper , the split hopkinson pressure bar ( shpb ) was used to study the compression mechanical behavior of al / sicp mmcs under the high strain rate 本文用自行研制的分段式霍布鑫森压杆( splithopkinsonpressurebar )研究al / sic _ p复合材料在高应变率下压缩的力学行为。 |
| 7. | Two programs named test . c and testl . c for acquiring wave data from tektronix 2440 oscilloscope and lecroy 9370 oscilloscope by gpib are presented in this paper , respectively 对gpib标准数字接口在hopkinson杆实验数据采集中的应用作了比较深入的分析,编写了test和test1采集程序并已在实验中得到较好的应用。 2 |
| 8. | The bar - bar impact apparatus of split hopkinson tensile / pressure bar for high strain rate tests of fiber reinforced composites is developed . the components of this apparatus , the data sampling method and software are introduced in details 研制用于纤维束和纤维复合材料高应变率下力学性能测试的杆杆型冲击测试装置?分离式hopkinson杆,描述该测试装置的硬件构成、信号采集和分析计算。 |
| 9. | Based on the literature exploration , the developments of split - hopkinson pressure bar ( shpb ) techniques and its principles are introduced in this paper . in the present paper , an application of data acquisition by gpib in the hopkinson bar experiments is provided 在文献调研的基础上,本文首先对分离式hopkinson (霍普金森)压杆( shpb )实验装置的发展和现状、实验装置的特点和原理进行了综述。 |
| 10. | Sicp / al matrix composites , with 5 , 15 and 25 % volume fraction of sic particles , were prepared by vacuum hot - pressing sintering processing in this paper . based on mechanics properties , sem observation and energy dispersive x - ray analysis , the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering , as well as the reinforcement and fracture mechanisms of this composite were analyzed . the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3 . 3 10 - 3s - 1 ) to dynamic state strain rate ( 5 . 2 103 s - 1 ) 本研究以武装直升飞机防护装甲材料为研究对象,采用真空热压粉末冶金烧结工艺制备了含sic颗粒体积分数分别为5 、 15和25的sic颗粒增强铝基复合材料,结合其力学性能、扫描电镜和界面微区能谱分析结果,分析了sic _ p al复合材料的真空烧结过程中的界面现象,以及材料增强和断裂机理,并利用hopkinson高速压杆冲击实验系统对其从静态到动态(应变率为3 . 3 10 ~ ( - 3 ) s ~ ( - 1 ) 5 . 2 10 ~ 3s ~ ( - 1 ) )的压缩破坏响应进行了研究,分析了不同体积分数sic _ p al复合材料高应变率压缩载荷下,材料的变形和微观损伤机理,以及利用高速冲击空气炮测定了改复合材料制备剃度复合板的穿透性能。 |