复合材料科学与工程Issue(2)：34-39,128,7.DOI:10.19936/j.cnki.2096-8000.20250228.005
共固化蜂窝夹层结构长梁弯曲性能预测
Prediction of long beam bending properties for co-cured honeycomb sandwich structures
摘要
Abstract
The material composition,structural form,and mechanical behavior of honeycomb sandwich struc-tures are more complex compared to laminated structures.In order to improve the accuracy of predicting the mechan-ical performance for honeycomb sandwich structures,the microscopic structure and mechanical properties of the panels of co-cured honeycomb sandwich structure were analyzed.On this basis,the finite element progressive failure analysis model of long beam bending was established to predict the bending load,deformation,and failure mode.The results show that,compared to the laminate molded separately using the same prepreg,number of plies and curing process,the panels of co-cured honeycomb sandwich structure have a thinner single layer thickness and lower compression strength.The geometric structure and material parameters of the model are determined on this ba-sis,thus ensuring the accuracy of the prediction.Comparison of predicted values with test results for ultimate ben-ding load and the deformation at 445 N,the error values are within±11%,and the failure location is in good agree-ment with the experiment.关键词
蜂窝夹层结构/共固化/长梁弯曲/渐进失效分析/有限元/性能预测/复合材料Key words
honeycomb sandwich structure/co-curing/long beam bending/progressive failure analysis/finite element/performance prediction/composites分类
通用工业技术引用本文复制引用
牛芳旭,孙超明,贺靖,尹航..共固化蜂窝夹层结构长梁弯曲性能预测[J].复合材料科学与工程,2025,(2):34-39,128,7.基金项目
中国建材集团攻关专项资助(2021YCJS02) （2021YCJS02）
