Dependence of dislocation creation on tensile orientation in face-centered-cubic ductile metals under high strain rate loading

2015 ◽  
Vol 118 (12) ◽  
pp. 124301 ◽  
Author(s):  
Wei-Wei Pang ◽  
Guang-Cai Zhang ◽  
Xian-Geng Zhao ◽  
Ping Zhang
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Face Centered Cubic ◽  
Ductile Metals ◽  
Face Centered ◽  
Strain Rate Loading

scholarly journals A New Set-Up to Investigate Plastic Deformation of Face Centered Cubic Metals in High Strain Rate Loading

2014 ◽  
Vol 8 (2) ◽  
Author(s):  
Ehsan Etemadi ◽  
Jamal Zamani ◽  
Alessandro Francesconi ◽  
Mohammad V. Mousavi ◽  
Cinzia Giacomuzzo
Keyword(s):  
Plastic Deformation ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Face Centered Cubic ◽  
Cubic Metals ◽  
Face Centered ◽  
Set Up ◽  
Strain Rate Loading

HIGH STRAIN RATE LOADING OF ZIRCALOY

1985 ◽  
Vol 46 (C5) ◽  
pp. C5-511-C5-516
Author(s):  
A. Kobayashi ◽  
S. Hashimoto ◽  
Li-lih Wang ◽  
M. Toba
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Strain Rate Loading

scholarly journals Anisotropic deformation and damage of dual-phase Ti-6Al-4V under high strain rate loading

2019 ◽  
Vol 742 ◽  
pp. 532-539 ◽  
Author(s):  
J. Tan ◽  
L. Lu ◽  
H.Y. Li ◽  
X.H. Xiao ◽  
Z. Li ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Dual Phase ◽  
Strain Rate Loading ◽  
Anisotropic Deformation

Physical constitutive equations for plastic deformation of FCC metals subjected to high strain rate loading

2015 ◽  
Vol 232 (2) ◽  
pp. 106-120 ◽  
Author(s):  
E Etemadi ◽  
J Zamani ◽  
M Jafarzadeh
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Entropy Generation ◽  
Constitutive Equations ◽  
High Strain ◽  
Velocity Shear ◽  
Viscous Drag ◽  
Shear Strain Rate ◽  
Face Centered Cubic ◽  
Fcc Metals

This paper develops a new physically based model to investigate face centered cubic (FCC) metals and alloys under high strain rate loadings (\gt104 s−1) which includes kinematics and constitutive equations for the propagation of elastic and steady plastic waves. The model’s formulations are based on the rate of the conservation energy law that includes the rate of the input energy, internal energy, and entropy generation. This formulation is obtained by incorporating the viscous drag effects and associating the entropy generation to the generation, glide, and annihilation of dislocations. The model is used for 6061-T6 aluminum alloys and the results are verified with the published theoretical models and experimental tests. Also, the effect of different parameters, such as the particle velocity, shear flow stress, shear strain rate and temperature are investigated. As a result, the presented model shows good capability in describing the mentioned parameters.

scholarly journals Dynamic Mechanical Properties and Microstructure of an (Al0.5CoCrFeNi)0.95Mo0.025C0.025 High Entropy Alloy

Entropy ◽  
2019 ◽  
Vol 21 (12) ◽  
pp. 1154
Author(s):  
Bingfeng Wang ◽  
Chu Wang ◽  
Bin Liu ◽  
Xiaoyong Zhang
Keyword(s):  
Mechanical Properties ◽  
Shear Band ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Dynamic Mechanical Properties ◽  
High Entropy Alloy ◽  
Face Centered Cubic ◽  
High Entropy ◽  
Dynamic Mechanical

The dynamic mechanical properties and microstructure of the (Al0.5CoCrFeNi)0.95Mo0.025C0.025 high entropy alloy (HEA) prepared by powder extrusion were investigated by a split Hopkinson pressure bar and electron probe microanalyzer and scanning electron microscope. The (Al0.5CoCrFeNi)0.95Mo0.025C0.025 HEA has a uniform face-centered cubic plus body-centered cubic solid solution structure and a fine grain-sized microstructure with a size of about 2 microns. The HEA possesses an excellent strain hardening rate and high strain rate sensitivity at a high strain rate. The Johnson–Cook plastic model was used to describe the dynamic flow behavior. Hat-shaped specimens with different nominal strain levels were used to investigate forced shear localization. After dynamic deformation, a thin and short shear band was generated in the designed shear zone and then the specimen quickly fractured along the shear band.

Response of NTS tuff to high strain rate loading

1996 ◽  
Author(s):  
Richard D. Dick ◽  
William L. Fourney ◽  
John D. Williams
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Strain Rate Loading
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