用于热压罐处理复合材料的固化曲线多目标优化：同时控制固化时间和工艺诱导缺陷

Multi-Objective Optimization of Curing Profile for Autoclave Processed Composites: Simultaneous Control of Curing Time and Process-Induced Defects.

作者信息

Tang Wenyuan, Xu Yingjie, Hui Xinyu, Zhang Wenchang

机构信息

State IJR Center of Aerospace Design and Additive Manufacturing, Northwestern Polytechnical University, Xi'an 710072, China.

Shaanxi Engineering Laboratory of Aerospace Structure Design and Application, Northwestern Polytechnical University, Xi'an 710072, China.

出版信息

Polymers (Basel). 2022 Jul 10;14(14):2815. doi: 10.3390/polym14142815.

DOI:10.3390/polym14142815

PMID:35890591

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9325121/

Abstract

The contribution of this work is introducing a multi-objective optimization method based on finite element (FE) numerical simulation to simultaneously control the curing time and cure-induced defects of C-shaped composites during a curing cycle. Thermochemical and thermomechanical coupled analysis is performed and validated experimentally to understand the evolution details of temperature, degree of cure and curing deformation. Aiming to achieve the simultaneous control of manufacturing cost and composite quality, the curing profile is optimized by employing the critical factors including the total curing time, the maximum degree of cure difference, and the curing deformation. The optimization result shows that the designed curing profile can effectively reduce the curing time and guarantee the curing quality. The total curing time of the optimization is reduced by 19%. The verification experiment is also conducted to prove the accuracy and effectiveness of the proposed optimization method.

摘要

这项工作的贡献在于引入了一种基于有限元（FE）数值模拟的多目标优化方法，以在固化周期内同时控制C形复合材料的固化时间和固化诱导缺陷。进行了热化学和热机械耦合分析，并通过实验进行了验证，以了解温度、固化程度和固化变形的演变细节。旨在实现制造成本和复合材料质量的同时控制，通过采用包括总固化时间、最大固化程度差异和固化变形等关键因素对固化曲线进行优化。优化结果表明，设计的固化曲线可以有效减少固化时间并保证固化质量。优化后的总固化时间减少了19%。还进行了验证实验，以证明所提出优化方法的准确性和有效性。