2) split Hopkinson pressure bar(SHPB)
分离式Hopkinson压杆
1.
Experiments with strain rate varying from 101 s-1 to103 s-1 on granite and concrete under uniaxial compressive loading are conducted with the modified split Hopkinson pressure bar(SHPB).
采用黄铜波形整形器改进后的分离式Hopkinson压杆装置,分别对花岗岩和混凝土试件进行不同应变率(101～103)s-1下的单轴冲击压缩试验,有效地减少传统Hopkinson压杆试验中,岩石类脆性材料在内部应力达到均衡之前过早破坏以及输入波的高频震荡给试验数据带来的波动性。
2.
There exist three main problems in the split Hopkinson pressure bar(SHPB) technique of measuring the dynamic properties of concrete material,which are the restriction of nonuniform stress (strain),the dispersion in wave propagation due to the large-diameter SHPB,and the influence of initial rising point of stress wave.
根据实验和理论分析,目前分离式Hopkinson压杆装置(SHPB)间接测量混凝土材料动态应力—应变关系时主要存在三方面问题,分别是应力应变不均匀的限制、大尺寸SHPB压杆产生的应力波弥散及数据处理时应力波波头选取的影响。
3.
The Split Hopkinson Pressure Bar(SHPB) is an ideal tool in carrying out high-speedloading to quasi-brittle materials, it can afford many loading means loading means to mensurate materials properties under dynamic loading.
分离式Hopkinson压杆是对准脆性材料实施高速加载的理想工具,利用该装置可以对准脆性材料实施各种加载方式,测定材料的动力特性参数。
3) Split Hopkinson pressure bar
分离式Hopkinson压杆
1.
Dynamic tests were made at strain rate 10~2 s~(-1)～10~3 s~(-1) by split Hopkinson pressure bar(SHPB),with bullet speeds of 4 m/s～15 m/s,and semiconductor gage was used on the transmitted bar.
在分离式Hopkinson压杆(SHPB)上做了铜基粉末冶金摩擦材料在102s-1～103s-1应变率范围内的冲击试验,弹速范围为4m/s～15m/s,在透射杆上采用了半导体应变片技术;在MTS实验机上做了该材料在10-4s-1～10-3s-1应变率范围内的准静态实验,分别在应变为0 005,0 010,0 020,0 035时卸载再加载,以验证材料的黏弹塑性特征。
2.
The split Hopkinson pressure bar test equipment was improved through adopting multi-measures.
采取多种措施改进了分离式Hopkinson压杆试验技术,用改进的设备对三峡坝址处的花岗岩进行了大量的动态单轴压缩试验和劈裂试验,发现该岩石具有明显的应变率效应,其动态压缩破坏呈3种形态:边缘崩落、留心破坏、完全破坏;探讨了相应的破坏机制;分析了应变率对动态弹性模量和动态抗压强度的影响;以Hoek-Brown破坏准则为基础建立了相应的动态破坏准则。
3.
The split Hopkinson pressure bar with a diameter of 100mm and the Brazilian disc and the flattened Brazilian disc specimens subjected to diametral impact compression were used.
利用直径为100mm的分离式Hopkinson压杆径向冲击巴西圆盘和平台巴西圆盘试样,测试了大理岩在高应变率加载下的动态力学性能。
4) SHPB
分离式Hopkinson压杆
1.
Dynamic mechanical properties of four aluminum alloy were attained with the split Hopkinson pressure bar(SHPB) apparatus.
利用分离式Hopkinson压杆实验设备测定了4种航空铝合金材料的动态力学性能,根据材料的应力应变曲线特性,选择Cowper-Symonds模型来拟合4种材料的动态本构。
2.
The problems of Split Hopkinson Pressure Bar(SHPB) technique used for measuring dynamic stress strain curve of concrete were discussed.
讨论了分离式Hopkinson压杆装置间接测量混凝土材料动态应力-应变曲线存在的问题。
5) The Split Hopkinson Pressure Bar (SHPB)
分离式Hopkinson压杆(SHPB)
6) split Hopkinson bar (SHB)
分离式Hopkinson压杆(SHB)
补充资料：分离
分离
①两者解离，如脑脊液检查出蛋白细胞分离现象，见于格林巴利综合征。②隔离的意思，如对传染病患者、恢复期患者和接触者，为防止传染源扩散将其与正常人分离隔绝，避免接触传染。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条