Energy Absorption Characteristics of Closed-cell AZ91 Magnesium Alloy Foam
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Li Chen
,
Qing-Ming Zhang
Abstract
The energy absorption characteristics of foam materials can be represented by specific energy absorption W, energy absorption efficiency E and ideal energy absorption efficiency I. The influences of strain rate, cell size, relative density and the content of SiC on energy absorption characteristics of magnesium alloy foam were investigated by dynamic compression experiments. The experimental results showed that the cell size of magnesium alloy foam had significant effect on energy absorption characteristics and the strain rate effect of closed-cell AZ91 magnesium with larger cell size was more sensitive, and the strain rate effect was more sensitive to the closed-cell AZ91 magnesium with larger cell size. The energy absorption characteristics could be optimized by adjusting the cell size. Moreover, the influence of relative density on energy absorption characteristics was not significant and high content of SiC particle had unfavorable effect on energy absorption properties of magnesium foam.
©2012 by De Gruyter
Articles in the same Issue
- Frontmatter
- Investigations of Evaluating Energy of Blast-induced Seismic Wave by Pressure in Elastic Zone
- Dynamic Growth and Coalescence of Drilled Voids in Pure Copper Sheets
- Energy Absorption Characteristics of Closed-cell AZ91 Magnesium Alloy Foam
- The Expansion Model of Debris Cloud Induced by Oblique Hypervelocity Impact
- Study on Dynamic Response of Visco-elastic Plate Under Transverse Periodic Load
- Ballistic Impact Characteristics of Flat-nose Projectile Penetrating Concrete and Soil Compound Target
- Non-linear Mathematical Model for Peristaltic Motion of Bio-fluids in a Channel and Tube
- Mass Loss and Nose Shape Change on Ogive-nose Steel Projectiles During Concrete Penetration
- Homotopy Perturbation Method for Flow of a Third-grade Fluid Through a Vertical Concentric Annulus
- The Soret Effect with the D1Q2 and D2Q4 Lattice Boltzmann Model
- Error Estimates of Homogenization Theory
- Complex Population Dynamics in Heterogeneous Environments: Effects of Random and Directed Animal Movements
Articles in the same Issue
- Frontmatter
- Investigations of Evaluating Energy of Blast-induced Seismic Wave by Pressure in Elastic Zone
- Dynamic Growth and Coalescence of Drilled Voids in Pure Copper Sheets
- Energy Absorption Characteristics of Closed-cell AZ91 Magnesium Alloy Foam
- The Expansion Model of Debris Cloud Induced by Oblique Hypervelocity Impact
- Study on Dynamic Response of Visco-elastic Plate Under Transverse Periodic Load
- Ballistic Impact Characteristics of Flat-nose Projectile Penetrating Concrete and Soil Compound Target
- Non-linear Mathematical Model for Peristaltic Motion of Bio-fluids in a Channel and Tube
- Mass Loss and Nose Shape Change on Ogive-nose Steel Projectiles During Concrete Penetration
- Homotopy Perturbation Method for Flow of a Third-grade Fluid Through a Vertical Concentric Annulus
- The Soret Effect with the D1Q2 and D2Q4 Lattice Boltzmann Model
- Error Estimates of Homogenization Theory
- Complex Population Dynamics in Heterogeneous Environments: Effects of Random and Directed Animal Movements
