非热压罐预浸料层间滑移特性的表征与建模

  • 王峰 ,
  • 王立冬 ,
  • 冯娅欣 ,
  • 张玄明 ,
  • 张香云
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  • 1. 中航复合材料有限责任公司
    2. 兰州理工大学

收稿日期: 2024-07-25

  修回日期: 2024-09-12

  网络出版日期: 2024-09-18

基金资助

国家自然科学基金;兰州理工大学红柳优秀青年人才支持计划;温州市科技计划项目

Characterization and modeling of inter-ply slipping of out-of-autoclave prepreg

  • WANG Feng ,
  • WANG Li-Dong ,
  • FENG Ya-Xin ,
  • ZHANG Xuan-Ming ,
  • ZHANG Xiang-Yun
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Received date: 2024-07-25

  Revised date: 2024-09-12

  Online published: 2024-09-18

摘要

采用非热压罐预浸料进行双曲率复杂制件热隔膜成型时易产生工艺缺陷如起皱、屈曲等,这些缺陷产生的主要机制之一是层间滑移受阻。在热隔膜预成型工艺中,影响层间滑移的因素有温度、法向压力和相对滑移速度。本文基于 pull-through测试原理设计了一套层间滑移系统用于非热压罐预浸料的层间滑移性能测试,分析了温度、法向压力和滑动速度对层间滑移的影响,并开发了一个描述其层间滑移行为的力学解析模型,可以准确预测在不同工艺参数状态下随着相对滑移位移变化的层间滑移行为。模型预测与实验数据之间显示出良好的一致性,验证了模型的有效性。

本文引用格式

王峰 , 王立冬 , 冯娅欣 , 张玄明 , 张香云 . 非热压罐预浸料层间滑移特性的表征与建模[J]. 航空学报, 0 : 0 -0 . DOI: 10.7527/S1000-6893.2024.30995

Abstract

During the hot diaphragm forming process of duoble-curved complex components using out-of-autoclave prepreg, process defects such as wrinkling and buckling often occur, one of the main mechanisms behind which is the restriction of inter-ply slipping. In the hot diaphragm preforming process, factors influencing inter-ply slipping include temperature, normal pressure, and relative sliding velocity. Based on the pull-through test principle, this paper designs a set of inter-ply slipping test systems for evaluating the inter-ply slipping properties of out-of-autoclave prepreg. The effects of temperature, normal pressure, and sliding velocity on inter-ply slipping are analyzed, and a mechanical analytical model describing its inter-ply slipping behavior is developed. This model can accurately predict the inter-ply slipping behavior as a function of relative slip displacement under different process parameter conditions. The good agreement between model predictions and experimental data validates the effectiveness of the model.

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