Damage in Armor Ceramics Subjected to High-Strain-Rate Dynamic Loadings: The Spherical Expansion Shock Wave Pyrotechnic Test

2021 ◽  
pp. 1-30
Author(s):  
Antonio Cosculluela ◽  
Pascal Forquin
Keyword(s):  
Shock Wave ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Dynamic Loadings ◽  
Armor Ceramics ◽  
Spherical Expansion ◽  
Rate Dynamic

A comparison of strain-rate enhancement approaches for concrete material subjected to high strain-rate

2017 ◽  
Vol 8 (2) ◽  
pp. 155-176 ◽  
Author(s):  
Xiangzhen Kong ◽  
Qin Fang ◽  
Hao Wu ◽  
Jian Hong
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Strain Softening ◽  
High Strain ◽  
Consistency Condition ◽  
Rate Data ◽  
Concrete Material ◽  
Rate Enhancement ◽  
Softening Behavior ◽  
Dynamic Loadings

High strain-rate induced from intense dynamic loadings will cause an obvious enhancement of concrete material frequently used in civil and defense engineering, which plays an important role in correct numerical simulations of concrete members subjected to intense dynamic loadings. In this article, the existing three strain-rate enhancement approaches for concrete material are compared by three aspects, that is, flexibility of fitting data, consistency condition, and time-dependent behavior. The so-called “overstress approach” is found to be not flexible for fitting high strain-rate data and unable to well predict the strain-softening behavior but can capture the inherent viscidity of concrete material. The “consistency approach” can describe the strain-softening behavior and the inherent viscidity but may be inconvenient and time-consuming when fitting high strain-rate data. The “simplified approach” widely used in commercial concrete material models can describe the strain-softening behavior and fit high strain-rate data by a more convenient and direct way but cannot capture the inherent viscidity of concrete material. Examples of uniaxial stress including loading and unloading under constant and varying strain-rates are presented to demonstrate the above-mentioned findings, in which the updating algorithm of dynamic stress is presented in detail.

High strain rate dynamic behaviour of AlSi12 alloy processed by selective laser melting

2018 ◽  
Vol 97 (1-4) ◽  
pp. 1023-1035 ◽  
Author(s):  
P. Ponnusamy ◽  
S. H. Masood ◽  
D. Ruan ◽  
S. Palanisamy ◽  
Rizwan Rashid
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Selective Laser Melting ◽  
Dynamic Behaviour ◽  
High Strain ◽  
Laser Melting ◽  
Rate Dynamic

High strain rate forming using an underwater shock wave focusing technique

1999 ◽  
Vol 85 (1-3) ◽  
pp. 194-197 ◽  
Author(s):  
Tadashi Hasebe ◽  
Yusuke Takenaga ◽  
Hideki Kakimoto ◽  
Yutaka Imaida
Keyword(s):  
Shock Wave ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Underwater Shock Wave ◽  
Wave Focusing ◽  
Shock Wave Focusing ◽  
Underwater Shock ◽  
High Strain Rate Forming

scholarly journals Energy dissipation and high-strain rate dynamic response of E-glass fiber composites with anchored carbon nanotubes

2016 ◽  
Vol 88 ◽  
pp. 44-54 ◽  
Author(s):  
Veera M. Boddu ◽  
Matthew W. Brenner ◽  
Jignesh S. Patel ◽  
Ashok Kumar ◽  
P. Raju Mantena ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Dissipation ◽  
Dynamic Response ◽  
High Strain Rate ◽  
Strain Rate ◽  
Glass Fiber ◽  
High Strain ◽  
Fiber Composites ◽  
Glass Fiber Composites ◽  
Rate Dynamic
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