| 复合材料层合板疲劳载荷下固有频率衰减预测模型 |
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| 引用本文： | 张善之,温卫东,张宏建.复合材料层合板疲劳载荷下固有频率衰减预测模型[J].机械制造与自动化,2021,50(1):143-146. |
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| 作者姓名： | 张善之 温卫东 张宏建 |
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| 作者单位： | 南京航空航天大学 航空发动机热环境与热结构工业和信息化部重点实验室,江苏 南京210016;南京航空航天大学 航空发动机热环境与热结构工业和信息化部重点实验室,江苏 南京210016;南京航空航天大学 航空发动机热环境与热结构工业和信息化部重点实验室,江苏 南京210016 |
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| 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。
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| 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 |
Natural Frequency Attenuation Prediction Model for Composite Laminates under Fatigue Loading |
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| ZHANG Shanzhi,WEN Weidong,ZHANG Hongjian.Natural Frequency Attenuation Prediction Model for Composite Laminates under Fatigue Loading[J].Machine Building & Automation,2021,50(1):143-146. |
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| Authors: | ZHANG Shanzhi WEN Weidong ZHANG Hongjian |
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| Affiliation: | (Aero-engine Thermal Environment and Structure Key Laboratory of Ministry of Industry and Information Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | 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. |
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| Keywords: | resin-based composites progressive cumulative damage model laminate theory natural frequency attenuation model |
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