Abstract
The strength enhancement of cellular materials under dynamic compression was experimentally studied in the present paper. A phenomenological model was employed to investigate the entrapped air contribution by introducing a parameter, namely the leaking rate of air. The strength enhancement caused by the entrapped air was then studied for both aluminum honeycombs and foams. It has been found that the pressure change in the entrapped air during dynamic compression is a direct source of strain hardening for aluminum honeycombs whereas it has less influence on the strain hardening of aluminum foams. Other sources that might contribute to the strain hardening of cellular materials are also discussed.
| Original language | English |
|---|---|
| Pages | 522-525 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 8 Feb 2013 |
| Event | 11th Asia-Pacific Conference on Engineering Plasticity and Its Applications - Duration: 5 Dec 2012 → … |
Conference
| Conference | 11th Asia-Pacific Conference on Engineering Plasticity and Its Applications |
|---|---|
| Period | 5/12/12 → … |
Keywords
- Cellular materials
- Dynamic behavior
- Strain rate sensitivity
- Strength enhancement