%0 Journal Article
%T 陶瓷基复合材料拉伸试验声发射与固有频率分析<br>Natural Frequency and Acoustic Emission Test Analysis of Ceramic Matrix Composites Monotonic Tensile
%A 黄豆
%A 吴锦武
%J Open Journal of Acoustics and Vibration
%P 17-25
%@ 2328-0522
%D 2020
%I Hans Publishing
%R 10.12677/OJAV.2020.81003
%X <div style=\"text-align:justify;\">
	<span style=\"font-size:14px;\">对陶瓷基复合材料试样进行了单调拉伸试验固有频率和声发射试验分析。得到了在拉伸过程中试样的固有频率变化趋势，同时绘制拉伸过程中应力–时间曲线及声发射信号随时间变化曲线。计算得到了陶瓷基复合材料结构的声发射信号的频谱图，针对声发射频谱图，分析得到了结构在单调拉伸试验过程损伤过程存在五个阶段，并详细分析了结构每阶段损伤变化情况。<br />
Natural frequencies and sound emission tests of ceramic matrix composites in the monotone tension were analyzed. The variation trend of the natural frequency of the sample during the tensile process was obtained. According to the test, the stress-time curve and the curve of AE signal changing with time were drawn. The spectrum diagram of acoustic emission signal was calculated, and for the acoustic emission spectrum diagram of ceramic matrix composite structure, five damage stages existed in the monotone tensile test, and the damage changes in each stage were analyzed in detail.</span><span style=\"font-size:14px;\"></span><br />
</div>
%K 陶瓷基复合材料，声发射技术，固有频率<br>Ceramic Matrix Composite
%K Monotonic Tensile Test
%K Acoustic Emission Technique
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=34443