碳纤维增强泡沫铝材料的压缩性能研究

In this paper, the compressive deformace of aluminum foams reinforced by short carbon fibers. Compressive test results indicate that the compressive strength of aluminum foams of same density increseas with the volume fraction of carbon fibers. It is also fact that there is an obvious stress drop at the stress-strain curve, indicating that foams with higher fiber fraction are more brittle. The microstrucutre of fractrue surface was observed, which reveal the fact that foam specimens with high fiber fraction show a brittal fracture.