Z形纤维增强复合材料层压板固化变形分析

doi:10.19936/j.cnki.2096-8000.20240328.012

摘要/Abstract

摘要： 复合材料层压板固化过程中产生的热化学和热力现象是造成零件残余应力及变形的主要原因,且Z形复合材料层压板在航空发动机总体结构上应用潜力大,因此需对Z形层压板的固化成型进行优化分析。建立固化度相关的理论模型,利用ABAQUS软件二次开发功能进行有限元仿真分析,进行正交试验设计,分析了转接半径、铺层数量及堆叠顺序等设计参数对Z形层压板固化变形的影响。分析结果表明,树脂模量、固化度和成型过程温度有较大关联性,只有铺层数量会显著影响变形量,而转接半径和堆叠顺序的影响较小。在转接半径为12 mm、铺层数量为4以及堆叠顺序为[30]组合下,Z形层压板的变形量能够取到局部最优。

关键词: Z形层压板, 碳纤维复合材料, 有限元法, 残余应力, 变形

Abstract: The thermochemical and thermal phenomena generated during the curing process of composite laminates are the main reasons for the residual stress and deformation of parts, and Z-shaped composite laminates have great potential in the overall structure of aero-engines, so it is necessary to optimize the curing molding of the Z-shaped laminate. This paper establishes a theoretical model related to curing degree, uses the secondary development function of ABAQUS software to carry out finite element simulation analysis, conducts orthogonal test design, and analyzes the influence of design parameters such as transfer radius, number of layers and stacking sequence on the curing deformation of Z-shaped laminates. The analysis results show that the resin modulus, curing degree and molding process temperature have great correlations, and only the number of layers can significantly affect the deformation, while the transition radius and stacking sequence have little influence. And when the transfer radius is 12 mm, the number of plies is 4, and the stacking sequence is [30], the deformation of the Z-shaped laminate can be locally optimal.

Key words: Z-shaped laminate, CFRP, FEM, residual stress, deformation

中图分类号:

TB332

伍强, 赵凯, 刘鹏飞, 张涛涛, 朱德勇. Z形纤维增强复合材料层压板固化变形分析[J]. 复合材料科学与工程, 2024, 0(3): 84-90.

WU Qiang, ZHAO Kai, LIU Pengfei, ZHANG Taotao, ZHU Deyong. Analysis of curing deformation of Z-shaped fiber-reinforced composite laminates[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(3): 84-90.

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