L形复合材料长梁件的倒圆角对其固化变形特性影响规律研究

doi:10.19936/j.cnki.2096-8000.20250928.009

复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (9): 65-74.DOI: 10.19936/j.cnki.2096-8000.20250928.009

L形复合材料长梁件的倒圆角对其固化变形特性影响规律研究

王岩¹, 黄永勇², 李毅超^3*

1.中国电子科技集团公司第二十七研究所,郑州450047;
2.湖北三江航天红阳机电有限公司树脂基结构与功能材料技术国家地方联合工程实验室,孝感432100;
3.华中科技大学航空航天学院,武汉430074

收稿日期:2025-04-27 发布日期:2025-10-23
通讯作者: 李毅超(1986—),男,博士,副教授,研究方向为航空航天复合材料,liyichao@hust.edu.cn。
作者简介:王岩(1983—),男,博士,高级工程师,研究方向为电磁发射技术。
基金资助:
2023年湖北省重大攻关项目(JD)(2023BAA004)

Influence of chamfering angle on the curing deformation characteristics of L-shaped composite truss

WANG Yan¹, HUANG Yongyong², LI Yichao^3*

1. The Twenty-seventh Research Institute of China Electronics Technology Group Corporation, Zhengzhou 450047, China;
2. National Engineering Research Laboratory of Resin Based Structure and Functional Materials Technology, Hubei Sanjiang Aerospace Hongyang Electromechanical Co., Ltd., Xiaogan 432100, China;
3. School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2025-04-27 Published:2025-10-23

摘要/Abstract

摘要： 为了解决U形或L形长梁件因固化变形带来的结构装配困难与承载可靠性降低的问题,本文基于ABAQUS有限元软件建立了一套复合材料固化变形仿真计算模型。基于该模型探究了L形复合材料长梁件的结构形状与铺层角度对其固化变形的影响。通过与三种非对称铺层L形复合材料长梁件的固化变形实验结果进行对比,发现仿真模型的最大计算误差为11%。基于该模型研究了铺层角度为[0/0/45/-45]_S、[0/90/45/-45]_S、[90/90/45/-45]_S的L形复合材料长梁件在不同倒圆角半径下的固化残余应力场与固化变形特性。结果表明,复合材料的倒圆角半径与铺层角度会显著影响构件的固化变形与残余应力。随着圆角半径的增加,三种铺层试样的固化残余应力与固化变形量均呈下降趋势。在圆角半径相同的情况下,[0/90/45/-45]_S试样的固化变形量与固化残余应力均为三种铺层设计中的最小值。这些结果表明,适当增大L形长梁件的倒圆角并进行合理均匀的铺层角度设计,有助于降低L形复合材料长梁件的固化变形。

关键词: 复合材料, 固化变形, 有限元仿真, 倒圆角, 铺层角度

Abstract: To solve problems of structure assembly difficulty and loading reliability reduction caused by curing deformation of U-shaped composite trusses, this paper established a composite material curing deformation simulation model under the framework of ABAQUS. Based on this model, the effects of structural shape and layup angle on the cure deformation of L-shaped composite truss were investigated. By comparing with the experimental results of the curing deformation of three asymmetric layups of L-shaped composite trusses, it was found that the maximum calculation error of the simulation model was 11%. Based on this model, the curing residual stress field and curing deformation characteristics of L-shaped composite trusses with lay-up angles of [0/0/45/-45]_S, [0/90/45/-45]_S, [90/90/45/-45]_S were investigated under different chamfer radii. The results showed that the chamfer radius and lay-up angle of the composites significantly affected the curing deformation and residual stress of the components. With the increase of chamfering radius, the curing residual stresses and deformations of the three layup specimens showed a decreasing trend. Under the same chamfering radius, the curing deformation and residual stress of the [0/90/45/-45]_S specimen was the smallest among the three ply designs. These results indicated that increasing the chamfering angle of the L-shaped truss and designing a reasonable and uniform layup angle can help to reduce the curing deformation of the L-shaped composite truss.

Key words: composites, curing deformation, finite element simulation, chamfering angle, layup orientation

中图分类号:

TB332

王岩, 黄永勇, 李毅超. L形复合材料长梁件的倒圆角对其固化变形特性影响规律研究[J]. 复合材料科学与工程, 2025, 0(9): 65-74.

WANG Yan, HUANG Yongyong, LI Yichao. Influence of chamfering angle on the curing deformation characteristics of L-shaped composite truss[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(9): 65-74.

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L形复合材料长梁件的倒圆角对其固化变形特性影响规律研究

Influence of chamfering angle on the curing deformation characteristics of L-shaped composite truss

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