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个人信息Personal Information
教授 博士生导师
招生学科专业：
力学 -- 【招收博士、硕士研究生】 -- 航空学院
航空宇航科学与技术 -- 【招收硕士研究生】 -- 航空学院
机械 -- 【招收博士、硕士研究生】 -- 航空学院
主要任职：航空学院教授
其他任职：《复合材料学报》编委
性别：男
毕业院校：清华大学
学历：清华大学
学位：工学博士学位
所在单位：航空学院
办公地点：航空学院大楼，814室
联系方式：13851556829（微信同此号）
电子邮箱：
Meso-scale finite element modeling of moisture diffusion in 3D braided composite
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所属单位：航空学院
发表刊物：Int. J. Heat Mass Transf.
摘要：This paper presents a meso-scale finite element approach on moisture diffusion of 3D braided composite (3D-BC). Firstly, meso-scale geometric configurations for both surface region and interior region of 3D-BC are constructed, and modifications of cross sections of fiber bundles in surface region are made to achieve the equivalent fiber volume fraction there. Then a mixed integral point element (MIPE) model is proposed which can discretize 3D-BC with uniform element mesh. Thus the difficulty of element discretization for 3D-BC introduced by its complicated local braided architecture is avoided. This meso-scale FE model is used to simulate moisture uptake test of a carbon fiber/epoxy matrix 3D-BC. A particular accelerating of moisture uptake during early period observed in the test of this 3D-BC is characterized by the proposed model. Influences of braided layer number and braided angle on moisture diffusion are also investigated by using this model. © 2018
ISSN号：0017-9310
是否译文：否
发表时间：2019-02-01
合写作者：郑浩,袁渊
通讯作者：周储伟