Effects of hydrogen on the mechanical response of X80 pipeline steel subject to high strain rate tensile tests

2019 ◽  
Vol 43 (4) ◽  
pp. 684-697 ◽  
Author(s):  
Yuanyuan Zheng ◽  
Lin Zhang ◽  
Qiaoying Shi ◽  
Chengshuang Zhou ◽  
Jinyang Zheng
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Mechanical Response ◽  
High Strain ◽  
Pipeline Steel ◽  
Tensile Tests ◽  
X80 Pipeline Steel

Influence of Morphology on Fracture Propagation of PMMAe/PC Blend in Tensile Tests at High Strain Rate

2020 ◽  
Vol 394 (1) ◽  
pp. 2000153
Author(s):  
Felipe Pedro da Costa Gomes ◽  
Juciklécia da Silva Reinaldo ◽  
Antônio Henrique Venâncio Rodrigues ◽  
Thatiana Cristina Pereira Macedo ◽  
Bismarck Luiz Silva ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Fracture Propagation ◽  
Tensile Tests

scholarly journals High-strain-rate mechanical response of HTPE propellant under SHPB impact loading

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035145
Author(s):  
Heng-ning Zhang ◽  
Hai Chang ◽  
Jun-qiang Li ◽  
Xiao-jiang Li ◽  
Han Wang
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Impact Loading ◽  
Mechanical Response ◽  
High Strain

scholarly journals Compressive Mechanical Properties of Porcine Brain: Experimentation and Modeling of the Tissue Hydration Effects

2019 ◽  
Vol 6 (2) ◽  
pp. 40 ◽  
Author(s):  
Raj K. Prabhu ◽  
Mark T. Begonia ◽  
Wilburn R. Whittington ◽  
Michael A. Murphy ◽  
Yuxiong Mao ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Water Content ◽  
Mechanical Response ◽  
High Strain ◽  
Peak Stress ◽  
Human Head ◽  
Element Analysis ◽  
Porcine Brain ◽  
Strain Behavior

Designing protective systems for the human head—and, hence, the brain—requires understanding the brain’s microstructural response to mechanical insults. We present the behavior of wet and dry porcine brain undergoing quasi-static and high strain rate mechanical deformations to unravel the effect of hydration on the brain’s biomechanics. Here, native ‘wet’ brain samples contained ~80% (mass/mass) water content and ‘dry’ brain samples contained ~0% (mass/mass) water content. First, the wet brain incurred a large initial peak stress that was not exhibited by the dry brain. Second, stress levels for the dry brain were greater than the wet brain. Third, the dry brain stress–strain behavior was characteristic of ductile materials with a yield point and work hardening; however, the wet brain showed a typical concave inflection that is often manifested by polymers. Finally, finite element analysis (FEA) of the brain’s high strain rate response for samples with various proportions of water and dry brain showed that water played a major role in the initial hardening trend. Therefore, hydration level plays a key role in brain tissue micromechanics, and the incorporation of this hydration effect on the brain’s mechanical response in simulated injury scenarios or virtual human-centric protective headgear design is essential.

scholarly journals Assessment of Deformation Field during High Strain Rate Tensile Tests of RAFM Steel Using DIC Technique

2014 ◽  
Vol 86 ◽  
pp. 131-138 ◽  
Author(s):  
S.A. Krishnan ◽  
Ankit Baranwal ◽  
A. Moitra ◽  
G. Sasikala ◽  
S.K. Albert ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Tensile Tests ◽  
Deformation Field ◽  
Rafm Steel ◽  
Dic Technique

scholarly journals Tensile Tests of Flat Bars at High Strain Rate

2011 ◽  
Vol 15 (3) ◽  
pp. 46-51
Author(s):  
Ivo Dohnal ◽  
Miroslav Šlais ◽  
Milan Forejt ◽  
Radko Smek
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Tensile Tests

Microstructural Modeling of Coupled Electromagnetic-Thermo-Mechanical Response of Energetic Aggregates to Infrared Laser Radiation and Dynamic Fracture

MRS Advances ◽  
2016 ◽  
Vol 1 (17) ◽  
pp. 1197-1202
Author(s):  
J.A. Brown ◽  
D.M. Bond ◽  
M.A. Zikry
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Mechanical Response ◽  
High Strain ◽  
Crack Nucleation ◽  
High Stress ◽  
Element Formulation ◽  
Crystalline Plasticity ◽  
Cyclotrimethylene Trinitramine ◽  
Crystalline Aggregates

ABSTRACTA dislocation-density based crystalline plasticity, a finite viscoelasticity, and a nonlinear finite-element formulation were used to study the high strain-rate failure of energetic crystalline aggregates. The energetic crystals of RDX (cyclotrimethylene trinitramine) with a polymer binder were subjected to high strain-rate tensile loading, and the predictions indicate that high localized stresses and stress gradients develop due to mismatches along crystalline-crystalline and crystalline-amorphous interfaces. These high-stress interfaces are sites for crack nucleation and propagation, and the predictions are used to show how the cracks nucleate and propagate.

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