Weighting Analysis of Factors of Spring-Back for C-Shaped Composite Spars

YANG Qing; LIU Weiping; YU Muhuo; YAN Dongxiu

doi:10.16080/j.issn1671-833x.2017.07.072

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Weighting Analysis of Factors of Spring-Back for C-Shaped Composite Spars

更新时间：2026-04-17

- Weighting Analysis of Factors of Spring-Back for C-Shaped Composite Spars
- Aeronautical Manufacturing Technology Vol. 60, Issue 7, Pages: 72-77(2017)
- 作者机构：
  
  1. 中国商飞上海飞机制造有限公司,上海,200436
  2. 东华大学民用航空复合材料协同创新中心,上海,201620
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2017.07.072
  CLC：
- Published：2017
- 稿件说明：
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杨青1，2，刘卫平1，2，余木火2，晏冬秀1，陈萍1，贾丽杰1，徐鹏1，魏冉1. 复合材料C 型梁回弹变形影响因素权重分析[J]. 航空制造技术, 2017, 60(7): 72-77.

YANG Qing1,2, LIU Weiping1,2, YU Muhuo2, YAN Dongxiu1, CHEN Ping1, JIA Lijie1,XU Peng1，WEI Ran1. Weighting Analysis of Factors of Spring-Back for C-Shaped Composite Spars. Aeronautical Manufacturing Technology, 2017, 60(7): 72-77.
杨青1，2，刘卫平1，2，余木火2，晏冬秀1，陈萍1，贾丽杰1，徐鹏1，魏冉1. 复合材料C 型梁回弹变形影响因素权重分析[J]. 航空制造技术, 2017, 60(7): 72-77. DOI： 10.16080/j.issn1671-833x.2017.07.072.

YANG Qing1,2, LIU Weiping1,2, YU Muhuo2, YAN Dongxiu1, CHEN Ping1, JIA Lijie1,XU Peng1，WEI Ran1. Weighting Analysis of Factors of Spring-Back for C-Shaped Composite Spars. Aeronautical Manufacturing Technology, 2017, 60(7): 72-77. DOI： 10.16080/j.issn1671-833x.2017.07.072.

摘要

复合材料C 型梁制造回弹变形的主要影响因素有几何结构、铺层间剪切效应和模具作用等。在复材固化过程中，这些因素共同作用，导致构件发生变形，对构件的几何精度产生不利影响。针对大飞机结构中常用的复合材料 C 型梁，通过理论分析、有限元计算和试验测量等方法，研究了上述因素对回弹变形的影响机理及其作用的权重，为精确预测和控制C 型梁的回弹提供了依据。

Abstract

Affect factors of spring-back for C-shaped composite spars generally include geometry

shear effect between plies

and mold

et al. The factors often bring to process-induced distortion in composite structures which would lead to bad geometric accuracy. Through analyzing the factors by theory approach

the FE calculation and experiment method

the spring-back values of C-shaped spars in structures of aircraft are calculated and the weight values of the factors are also estimated

which could be used to provide some bases for distortion prediction and control for C-shaped composite spars.

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