Mechanical behavior of three dimension braided carbon/epoxy composite |

Issue		Volume 2, 2009 DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		1173 - 1178
Section		Micro-Structural Effects
DOI		10.1051/dymat/2009164
Published online		15 September 2009

DYMAT 2009 (2009) 1173-1178
DOI: 10.1051/dymat/2009164

Mechanical behavior of three dimension braided carbon/epoxy composite

G. Lu¹, Z. Guoquan¹, C. Fan¹, Z. Shanyuan¹ and J. Yang²

¹ Institute of Applied Mechanics, Taiyuan University of Technology, Shanxi 030024, PR China
² The Solid Mechanics Research Centre, Beijing University of Aeronautics and Astronautics, Beijing 100191, PR China

Published online: 15 September 2009

Abstract
To understand the quasi-static and dynamic compressive mechanical properties of a kind of three dimension braided carbon/epoxy composite, numbers of quasi-static and dynamic compression experiments were conducted, by means of WDS-100 universal material testing machine and SHPB technology respectively. The compressive stress-strain curves and compressive strength were achieved in a large strain rate range (from strain rate 0 to about 2400 s⁻¹). The fractured failure modes of carbon/epoxy composite are also photographed. The experimental results show that the dynamic performance of this composite and the strain rate effect are matrix-dominated; the carbon fiber and its initial waviness master the mechanical property. The energy absorption characteristics of round tube made of composite material is also studied based on drop-hammer test and compared with that of steel tube.

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