Tensile behavior of strain-hardening geopolymer composites (SHGC) under impact loading

2020 ◽  
Vol 113 ◽  
pp. 103703 ◽  
Author(s):  
Ana Carolina Constâncio Trindade ◽  
Ali A. Heravi ◽  
Iurie Curosu ◽  
Marco Liebscher ◽  
Flávio de Andrade Silva ◽  
...  
Keyword(s):  
Strain Hardening ◽  
Impact Loading ◽  
Tensile Behavior ◽  
Geopolymer Composites

On the mechanical performance of K- and Na-based strain-hardening geopolymer composites (SHGC) reinforced with PVA fibers

2020 ◽  
Vol 248 ◽  
pp. 118558 ◽  
Author(s):  
Ana Carolina Constâncio Trindade ◽  
Iurie Curosu ◽  
Marco Liebscher ◽  
Viktor Mechtcherine ◽  
Flávio de Andrade Silva
Keyword(s):  
Strain Hardening ◽  
Mechanical Performance ◽  
Geopolymer Composites

Tensile Behavior of Ti-5Al-2.5Sn Alloy at Low Temperatures and High Strain Rates

2019 ◽  
Vol 794 ◽  
pp. 135-141
Author(s):  
Bin Zhang ◽  
Yang Wang
Keyword(s):  
Strain Rate ◽  
Strain Hardening ◽  
Low Temperatures ◽  
High Strain ◽  
Testing Temperature ◽  
Tensile Behavior ◽  
Experimental Results ◽  
Strain Rates ◽  
Increasing Temperature ◽  
Strain Hardening Rate

The mechanical responses of Ti-5Al-2.5Sn alloy at low temperatures were investigated under quasi-static and dynamic tensile loads using MTS system and SHTB system, respectively. Tensile stress-strain curves were obtained over the temperature range of 153 to 298K and the rate range of 0.001 to 1050 s-1. Experimental results indicate that the tensile behavior of Ti-5Al-2.5Sn alloy is dependent on strain rate and temperature. Yield stress and flow stress increase with increasing strain rate and decrease with increasing temperature. Results also indicate that strain hardening rate of Ti-5Al-2.5Sn alloy is lower at high strain rate, while strain hardening rate varies little with testing temperature. The Khan-Huang-Liang constitutive model was chosen to characterize the tensile responses of Ti-5Al-2.5Sn alloy at low temperatures and different strain rates. The model results coincide well with the experimental results within the tested temperature and rate ranges.

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