Damping capacity of amorphous carbon fiber/aluminum matrix composites at room temperature
来源期刊：Rare Metals2007年第S1期
论文作者：LI Aibin,WANG Hongmei,LI Shasha,and ZHENG Peiqi School of Materials Science and Engineering,Harbin Institute of Technology,Harbin ,China
文章页码：115 - 119
摘 要：The influence of volume fraction on damping capacities at room temperature for amorphous carbon fiber reinforced aluminum matrix composites was investigated.At room temperature,the dislocation damping is the primary damping mechanism.Meanwhile,the dislocation damping exhibits dynamic hysteresis at low strain amplitudes and static hysteresis at high strain amplitudes.Moreover,the damping capacity is rather sensitive to the volume fraction.Compared to unreinforced aluminum alloy,the additions of amorphous carbon fibers into the aluminum matrix can improve damping capacity below the volume fraction of 30%,whereas worsen above the volume fraction of 40%.
LI Aibin,WANG Hongmei,LI Shasha,and ZHENG Peiqi School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China
摘 要：The influence of volume fraction on damping capacities at room temperature for amorphous carbon fiber reinforced aluminum matrix composites was investigated.At room temperature,the dislocation damping is the primary damping mechanism.Meanwhile,the dislocation damping exhibits dynamic hysteresis at low strain amplitudes and static hysteresis at high strain amplitudes.Moreover,the damping capacity is rather sensitive to the volume fraction.Compared to unreinforced aluminum alloy,the additions of amorphous carbon fibers into the aluminum matrix can improve damping capacity below the volume fraction of 30%,whereas worsen above the volume fraction of 40%.
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