复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (8): 104-110.DOI: 10.19936/j.cnki.2096-8000.20250828.012

• 设计与工艺 • 上一篇    下一篇

复合材料固化变形预测及模具型面优化

陈恒, 马秀菊, 孙龙港, 冒海峰, 周娴   

  1. 航天海鹰(镇江)特种材料有限公司,镇江 212001
  • 收稿日期:2024-06-14 出版日期:2025-08-28 发布日期:2025-09-23
  • 作者简介:陈恒(1997—),男,硕士,工程师,研究方向为复合材料结构设计与固化工艺仿真,chenheng202210@163.com。

Prediction of composite material cure deformation and mold surface optimization

CHEN Heng, MA Xiuju, SUN Longgang, MAO Haifeng, ZHOU Xian   

  1. Aerospace Hiwing (Zhenjiang) Special Materials Co., Ltd., Zhenjiang 212001, China
  • Received:2024-06-14 Online:2025-08-28 Published:2025-09-23

摘要: 通过建立复合材料固化过程中多因素数值模型,采用热-化学耦合传热模型模拟树脂固化过程中零件的温度分布,基于瞬时线弹性理论的本构模型,通过材料参数的演化来描述材料在相变过程中的力学行为,预测了封端肋蜂窝夹层件的固化变形趋势。通过实验结果验证了模型的可靠性,基于仿真分析结果对工装型面进行优化处理,利用优化后的工装制备零件与零件理论型面进行对比分析,工装优化后成型零件型面最大变形相比于理论零件尺寸变形量降低了86.98%。

关键词: 复合材料, 固化变形, 有限元仿真, 模具优化, 夹层结构

Abstract: This paper establishes a multi-factor numerical model for the curing process of composite materials, exploring the temperature distribution of parts during resin curing using a thermo-chemical coupled heat transfer model. A constitutive model based on instantaneous linear elasticity theory, considering the evolution of material parameters, was used to describe the mechanical behavior of the material during the phase change process, predicting the curing deformation trend of end-rib honeycomb sandwich components. The reliability of the model was validated through experimental results. Based on the simulation analysis results, the tool surface was optimized. A comparative analysis was conducted between the parts prepared using the optimized tooling and the theoretical part surface. After tool optimization, the maximum deformation of the molded part’s surface compared to the theoretical part dimensions was reduced by 86.98%.

Key words: composite materials, cure deformation, finite element simulation, mold optimization, sandwich structure

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