1) SHPB dynamic compression test
SHPB动态压缩试验
1.
Perzna model was employed to simulate the SHPB dynamic compression test of a low alloy steel representing strain-rate sensitivity,and the stress-strain curve was obtained and compared with experimental data.
应用Perzyna材料强度模型,对应变率敏感的某低合金钢的SHPB动态压缩试验进行了数值模拟分析,获得了高应变率下的应力-应变曲线,并与实验值相比较。
2) SHPB compression experiment
SHPB压缩实验
4) SHPB test
SHPB试验
1.
SHPB test study on dynamic characteristics of polypropylene fiber concrete;
高掺量聚丙烯纤维混凝土动力特性的SHPB试验
2.
Using the constitutive relation of the Mg-Al Alloy determined by quasi-static and dynamic compression tests in the one-dimensional simulation of the SHPB test,the reflected and transmitted pulses of SHPB tests can be reproduced.
把由一维准静态及动态压缩试验结果所拟合的经验性本构关系代入镁铝合金的SHPB试验的全过程数值模拟,可再现实验测得的反射波波形及透射波波形。
3.
First, the validity of the classical SHPB analyses at high loading rate is re-examined using one-dimensional simulation of SHPB test.
从实验、理论与数值模拟的结合上,对于高加载率的SHPB试验原理提出一种新理念。
6) static compression test
静态压缩试验
1.
Through the static compression test of discarded agricultural plant fibre pad, the essay compares the stress-strain curve (σ-ε) among the plant fibre buffer pad, honeycomb cardboard and EPS foam, and draws theC-σm, C-εand C -E curves of plant fibre pad for buffer design.
通过农业废弃植物纤维衬垫的静态压缩试验,比较植物纤维缓冲衬垫、蜂窝纸板与EPS泡沫塑料的应力-应变(σ-ε)曲线;并绘制出植物纤维衬垫的缓冲系数-最大应力(C-σm))曲线、缓冲系数-应变量(C-ε)曲线、缓冲系数-变形能(C-E)曲线供缓冲设计使用;最后对农业废弃植物纤维缓冲衬垫在铁路大宗货物运输中的应用进行了研究。
2.
With static compression test, the elastic stage equation of the new material and the stress-strain curve and buffer coefficient-stress curve which can reflect the new material static buffer propertiesare obtained for the implementation and application of the new material.
通过静态压缩试验,得到新材料的弹性状态方程和能够反映材料静态缓冲性能的应力-应变曲线与缓冲系数-应力曲线,为新材料的推广应用提供了依据。
补充资料:压缩试验
测定材料在轴向静压力作用下的力学性能的试验,是材料机械性能试验的基本方法之一。试样破坏时的最大压缩载荷除以试样的横截面积,称为压缩强度极限或抗压强度。压缩试验主要适用于脆性材料,如铸铁、轴承合金和建筑材料等。对于塑性材料,无法测出压缩强度极限,但可以测量出弹性模量、比例极限和屈服强度等。与拉伸试验相似,通过压缩试验可以作出压缩曲线。图中为灰铸铁和退火钢的压缩曲线。曲线中纵坐标P为压缩载荷,横坐标Δh为试样承受载荷时的压缩量。如将两坐标值分别除以试样的原截面积和原高度,即可转换成压缩时的应力-应变曲线。图中Pp为比例极限载荷,P0.2为条件屈服极限载荷,P b为破坏载荷。在压缩试验中,试样端面存在较大的摩擦力,影响试验结果。试样越短影响越大,为减少摩擦力的影响,一般规定试样的长度与直径的比为1~3,同时降低试样的表面粗糙度,涂以润滑油脂或垫上一层薄的聚四氟乙烯等材料。
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