Influence of specimen size on compression behavior of cement paste and mortar under high strain rates

2016 ◽  
Vol 31 (2) ◽  
pp. 300-306 ◽  
Author(s):  
Xudong Chen ◽  
Chen Chen ◽  
Pingping Qian ◽  
Lingyu Xu
Keyword(s):  
Cement Paste ◽  
High Strain ◽  
Specimen Size ◽  
Strain Rates ◽  
High Strain Rates ◽  
Compression Behavior

scholarly journals Effects of aspect ratio and specimen size on uniaxial failure stress of iron green bodies at high strain rates

2015 ◽  
Vol 94 ◽  
pp. 01060 ◽  
Author(s):  
Yuki Kuroyanagi ◽  
Masahiro Nishida ◽  
Takashi Ogura ◽  
H.-Å. Häggblad ◽  
P. Jonsén ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Strain ◽  
Specimen Size ◽  
Failure Stress ◽  
Strain Rates ◽  
High Strain Rates

Compression Behavior of Near-UFG AZ31 Mg-Alloy at High Strain Rates

2011 ◽  
pp. 295-301
Author(s):  
Mikko Hokka ◽  
Jeremy Seidt ◽  
Thomas Matrka ◽  
Amos Gilat ◽  
Veli-Tapani Kuokkala ◽  
...  
Keyword(s):  
High Strain ◽  
Mg Alloy ◽  
Strain Rates ◽  
High Strain Rates ◽  
Compression Behavior ◽  
Az31 Mg Alloy

Specimen Size limited of Material Testing at Medium and High Strain Rates

2002 ◽  
Vol 2002.77 (0) ◽  
pp. _8-23_-_8-24_
Author(s):  
Akio KITADA ◽  
Yoshitaka TATSUMI ◽  
Tsutomu UMEDA ◽  
Koji MIMURA ◽  
Shinji TANIMURA
Keyword(s):  
High Strain ◽  
Material Testing ◽  
Specimen Size ◽  
Strain Rates ◽  
High Strain Rates

scholarly journals Specimen Size Suitable for Material Testing at Medium and High Strain Rates.

2002 ◽  
Vol 68 (676) ◽  
pp. 1762-1766 ◽  
Author(s):  
Shinji TANIMURA ◽  
Yoshitaka TATSUMI ◽  
Tsutomu UMEDA ◽  
Akio KITADA
Keyword(s):  
High Strain ◽  
Material Testing ◽  
Specimen Size ◽  
Strain Rates ◽  
High Strain Rates

611 Specimen Size sulitable for Material Testing at Medium and High Strain Rates

2001 ◽  
Vol 2001.76 (0) ◽  
pp. _6-21_-_6-22_
Author(s):  
Yoshitaka TATSUMI ◽  
Tsutomu UMEDA ◽  
Koji MIMURA ◽  
Shinji TANIMURA
Keyword(s):  
High Strain ◽  
Material Testing ◽  
Specimen Size ◽  
Strain Rates ◽  
High Strain Rates

High Strain Rate Compression Behavior and Constitutive Relation of As-Extruded Mg-Gd-Y Magnesium Alloy

2011 ◽  
Vol 686 ◽  
pp. 162-167 ◽  
Author(s):  
Zheng Liu ◽  
Ping Li Mao ◽  
Chang Yi Wang
Keyword(s):  
Magnesium Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Strain Rates ◽  
High Strain Rates ◽  
Stress Strain ◽  
Compression Behavior ◽  
Calculated Stress ◽  
Strain Rate Compression

The high strain rate compression behavior of extruded Mg-Gd-Y magnesium alloy was tested by split Hopkinson pressure bar (SHPB) under the strain rates of 465s-1，2140s-1and 3767s-1. As comparison the quasi-static compression behavior was tested in the meanwhile. The results show that the quasi-static yield stress is equivalent to that of high strain rates, but the flow stress at high strain rates are higher than that of quasi-static stain rate at the same strain. When the strain rate is increase from quasi-static to high strain rates the deformation stresses increase obviously but within the present testing high strain rates, increasing the strain rate the stress has a slight increasing, indicating that at high strain rate the stress of Mg-Gd-Y magnesium alloy is not sensitive to the strain rate. The constitutive equation between deformation stress, strain and strain rate was build based on the tested compression stress strain curves. The calculated stress strain data were compared with tested stress strain curves. The results demonstrate that when the strain rates are 0.001s-1，465s-1，2140s-1respectively the calculated and experimental data are fit very well. The calculated stress is higher than that of tested stress if the strain rate is increase to 3767s-1and the strain is more than 0.15. The discrepancy was explained through the physical soundness of Johnson-Cook model.

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