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厚截面层合板非同步固化的三维有限元分析

张纪奎 张江 马志阳 程小全

张纪奎, 张江, 马志阳, 等 . 厚截面层合板非同步固化的三维有限元分析[J]. 北京航空航天大学学报, 2013, 39(11): 1464-1469.
引用本文: 张纪奎, 张江, 马志阳, 等 . 厚截面层合板非同步固化的三维有限元分析[J]. 北京航空航天大学学报, 2013, 39(11): 1464-1469.
Zhang Jikui, Zhang Jiang, Ma Zhiyang, et al. Three-dimensional finite element analysis for non-synchronized cure of thick composite laminates[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(11): 1464-1469. (in Chinese)
Citation: Zhang Jikui, Zhang Jiang, Ma Zhiyang, et al. Three-dimensional finite element analysis for non-synchronized cure of thick composite laminates[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(11): 1464-1469. (in Chinese)

厚截面层合板非同步固化的三维有限元分析

基金项目: 国家自然科学基金青年基金资助项目(50903002)
详细信息
  • 中图分类号: TB330.1

Three-dimensional finite element analysis for non-synchronized cure of thick composite laminates

  • 摘要: 建立了描述厚截面复合材料固化压实过程的三维有限元模型并进行了模型有效性验证,计算了400层AS4/3501-6层合板在固化过程中的温度场、固化度、粘性、树脂体积含量和厚度压缩率情况.模型计算结果表明:在固化过程中,层合板的中间层会出现高于保温平台约49K的温度峰值;层合板沿厚度方向的温度和固化度的非同步现象明显;层合板的中部存在明显的局部温度过热和快速固化区域,该区域内的树脂粘性变化剧烈、树脂流动时间缩短,阻碍了该区域及层合板下部的多余树脂流入吸胶膜,并最终导致了固化结束后树脂的不均匀分布,靠近吸胶膜的上表面树脂体积含量约为41%,靠近模具的下表面约为46.5%;层合板的最终固化压实率在15.7%左右.

     

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出版历程
  • 收稿日期:  2013-01-05
  • 刊出日期:  2013-11-30

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