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Experiment r esearch on the dynamic mechanical behavior of aluminum matrix syntactic foam

LINCHI ZOU1, QIANG ZHANG2, GAOHUI WU1,3,* , HANG SU1, DONGLI SUN2, LONGTAO JIANG1

Affiliation

  1. Institute of Metal Matrix Composite Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
  2. School of Materials Science and Technology, Harbin Institute of Technology, Harbin,150001, China
  3. National Key Laboratory of Materials Behaviours & Evaluation Technology in Space Environments, Harbin Institute of Technology, Harbin, 150001, China

Abstract

The dynamic mechanical behavior of aluminum matrix syntactic foam in the strain rate range from 1700s 1 to 3800s 1 was investigated by Hopkinson pressure bar system. Compared to the mechanical behavior under quasi static loading, syntactic foam showed higher strength under dynamic loading. But the significant distinguish of strain rate can’t lead to the obvious difference of strength. On the other side, the aluminum matrix syntactic foam exhibited excellent energy absorption effi ciency. The value of energy absorption efficiency exceeded 0.7 under dynamic loading, even more it reached 0.9 at 2700s 1. These results indicated aluminum matrix syntactic foam was suit for energy absorption application under impact loading..

Keywords

Aluminum matrix syntactic foam, High strain rate compression, Strain rate effect, Energy absorption.

Citation

LINCHI ZOU, QIANG ZHANG, GAOHUI WU, HANG SU, DONGLI SUN, LONGTAO JIANG, Experiment r esearch on the dynamic mechanical behavior of aluminum matrix syntactic foam, Optoelectronics and Advanced Materials - Rapid Communications, 7, 7-8, July-August 2013, pp.577-579 (2013).

Submitted at: Nov. 27, 2013

Accepted at: July 11, 2013