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Analysis and control of cured deformation of fiber-reinforced thermosetting composites: a review

纤维增强复合材料固化变形的研究与控制综述

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Abstract

Fiber-reinforced thermosetting composites are of great significance in aerospace, marine, automotive, wind power, and civil engineering fields. They have outstanding advantages and can reduce weight and enhance performance, especially by replacing steel pieces. However, nonreversible cured deformation is an obstacle to the rapid development of these composite components. Studies in this field typically focus on the numerical prediction of the effects of cured deformation on composite components, which helps engineers design and modify the mold to compensate for deformation. In this review we discuss the latest achievements relating to cured deformation mechanisms, prediction models, and control strategies in fiber-reinforced material fields. In particular, different intrinsic and extrinsic factors that affect cured deformation are summarized and five main control strategies are proposed: die surface compensation, process optimization, structural optimization, tool-part contact optimization, and development of other methods. In addition, the effects of these factors on controlling deformation are compared. Unlike previous studies, this study integrates control strategies and the main mechanisms involved to achieve a more comprehensive view of cured deformation in thermosetting composites.

中文概要

目 的

固化变形问题是纤维增强复合材料结构件固化成形及应用过程中的一大阻碍。本文旨在综述引起 固化变形的原因和机理, 归纳和评价固化变形的 控制方法, 以及指出目前存在的问题与不足。

方 法

1. 通过对国内外文献的大量阅读与分析, 得到固化变形问题的产生机理及近年来的研究进展; 2. 通过对该领域论文的分类和归纳, 总结出固化 变形的主要控制策略, 并分类讨论每项策略的控 制措施。

结 论

1. 固化变形的产生机理主要有热变形、化学收缩变形和模具作用3 种。2. 本文归纳了固化变形的五类控制方法: 模具补偿、固化工艺优化、结构件优化设计、模具接触面优化以及开发新方法。3. 针对各控制策略的优点, 本文分析和总结了它们的适用场合以及控制效果。4. 在固化变形的研究方面, 目前仍然存在许多问题与不足。

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Correspondence to Zhong-bin Xu or Xiao-dong Ruan.

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Project supported by the National Basic Research Program (973 Program) of China (No. 2015CB057301) and the National Natural Science Foundation of China (Nos. 21676244 and 51373153)

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Lian, Jy., Xu, Zb. & Ruan, Xd. Analysis and control of cured deformation of fiber-reinforced thermosetting composites: a review. J. Zhejiang Univ. Sci. A 20, 311–333 (2019). https://doi.org/10.1631/jzus.A1800565

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  • DOI: https://doi.org/10.1631/jzus.A1800565

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