Article
Licensed
Unlicensed
Requires Authentication
Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
-
Dongfang Ma
,
Wu Shanxing
Published/Copyright:
April 20, 2012
Abstract
In order to make effective measure for the stress, strain and strain rate in the specimen, a tensile split Hopkinson bar (TSHB) was optimized in the first loading duration and the thermoviscoplastic models for a pure copper were determined. The deformation of the pure copper bar during the multi-tensile loading including the necking process in the optimized TSHB testing was recorded by a high speed camera and was used in providing an extensional check of the determined thermoviscoplastic models of the pure copper. The thermoviscoplastic models determined in a certain range of strain were employed in numerically simulating the large deformation of the pure copper bar to adjust the thermoviscoplastic model to describing large strain range. The instability strain of thermoviscoplastic materials in simple tension given by Batra et al was compared with the experimental strain at diffuse necking of the pure copper bar and the computed instability strain based on the load-average strain of the pure copper bar. The local necking of the pure copper bar in the optimized TSHB testing was numerically simulated using the micro-mechanical data given by Ragab and was compared with the recorded necking.
Received: 2011-10-12
Accepted: 2011-11-23
Published Online: 2012-4-20
Published in Print: 2012-4-1
©2012 by De Gruyter
You are currently not able to access this content.
You are currently not able to access this content.
Articles in the same Issue
- Masthead
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- On the Energy of Dynamic Fractures
- On the Energy of Dynamic Fractures
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Mechanism of High-velocity Projectile Penetration into Concrete
- Mechanism of High-velocity Projectile Penetration into Concrete
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Strain Rate Effects on the Interaction between an Eccentric Matrix Crack and a Circular Inclusion in Composites under Dynamic Loadings
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Investigation into the Spall Strength of Cast Iron
- Investigation into the Spall Strength of Cast Iron
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
- Frontmatter
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- On the Energy of Dynamic Fractures
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Mechanism of High-velocity Projectile Penetration into Concrete
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Strain Rate Effects on the Interaction between an Eccentric Matrix Crack and a Circular Inclusion in Composites under Dynamic Loadings
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Investigation into the Spall Strength of Cast Iron
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
Keywords for this article
Dynamic necking;
TSHB;
thermoviscoplastic effects;
numerical simulation;
pure copper bar
Articles in the same Issue
- Masthead
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- On the Energy of Dynamic Fractures
- On the Energy of Dynamic Fractures
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Mechanism of High-velocity Projectile Penetration into Concrete
- Mechanism of High-velocity Projectile Penetration into Concrete
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Strain Rate Effects on the Interaction between an Eccentric Matrix Crack and a Circular Inclusion in Composites under Dynamic Loadings
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Investigation into the Spall Strength of Cast Iron
- Investigation into the Spall Strength of Cast Iron
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
- Frontmatter
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- On the Energy of Dynamic Fractures
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Mechanism of High-velocity Projectile Penetration into Concrete
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Strain Rate Effects on the Interaction between an Eccentric Matrix Crack and a Circular Inclusion in Composites under Dynamic Loadings
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Investigation into the Spall Strength of Cast Iron
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
