摘要
基于层合板疲劳逐渐损伤理论结合经典层合板理论的本构模型,通过在ANSYS软件平台上编写APDL参数化子程序,预测了T300/970复合材料哑铃型疲劳试件的疲劳寿命及其各寿命阶段的固有频率。模拟所得的固有频率与试验曲线具有良好的一致性,表明所建立的模型可以有效预测T300/970复合材料在不同寿命阶段的模态特性。
Based on the gradual damage theory of laminate fatigue and the constitutive model of classical laminate theory,the fatigue life and natural frequency of T300/970 composite dumbbell fatigue specimens are predicted by writing APDL parameterization subroutine on ANSYS software platform.The natural frequency obtained by the simulation is in good agreement with the experimental curve,which indicates that the model established in this paper effectively predicts the modal characteristics of T300/970 composites at different life stages.
作者
张善之
温卫东
张宏建
ZHANG Shanzhi;WEN Weidong;ZHANG Hongjian(Aero-engine Thermal Environment and Structure Key Laboratory of Ministry of Industry and Information Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《机械制造与自动化》
2021年第1期143-146,共4页
Machine Building & Automation
关键词
树脂基复合材料
逐渐累积损伤模型
层合板理论
固有频率衰减模型
resin-based composites
progressive cumulative damage model
laminate theory
natural frequency attenuation model
