碳纤维H形截面支撑环脱模工艺仿真及优化  

Process simulation and optimization of H-section annular support structure made of carbon fibre composites

作　　者：刘佳鑫 林再文 邹志伟 程显贺 曹延君 田涯 LIU Jiaxin;LIN Zaiwen;ZOU Zhiwei;CHENG Xianhe;CAO Yanjun;TIAN Ya(Changchun Aerospace Composite Materials Co.,Ltd.,Changchun 130102,China;School of Mechanics and Aerospace Engineering,Dalian University of Technology,Dalian 116081,China)

机构地区：[1]长春长光宇航复合材料有限公司,长春130102 [2]大连理工大学力学与航空航天学院,大连116081

出　　处：《复合材料科学与工程》2025年第3期71-78,共8页Composites Science and Engineering

基　　金：吉林省科技发展计划项目(20210201120GX)。

摘　　要：针对碳纤维H形截面支撑环(H环)结构件在模压工艺成型的脱模过程中发生断裂破坏的问题,提出了工艺仿真方法,揭示了H环脱模过程中的破坏机理。该方法按照H环的工艺分区进行分块独立建模,分区之间通过胶接方式模拟。首先采用该方法分析了H环在初始脱模方案下各阶段的损伤状态,验证了本文方法的正确性和有效性,然后对H环脱模顺序进行优化,在确定新脱模方案后,后续使用该脱模方案生产的H环均顺利出模,并满足GJB 2895中B级质量要求,再次验证了该工艺仿真方法对模压工艺成型脱模预测的有效性和实用性。To solve the breakage of carbon fibre H-section annular support structure(H-section structure)during demoulding,a method of process simulation for composite has been proposed in the article.The method constructed each process division finite element model independently according to the actual process of composite structure,and connected each process division model by adhesive condition.To verify the accuracy and effectiveness of the process simulation method,the study analyzed the damage status of H-section structure during original demoulding scheme,and results corresponded exactly to the actual state.Proceed to the next step,the study optimized the demoulding scheme based on the process simulation method,the subsequent new H-section structure applying the optimized demoulding scheme all kept intact during demoulding,and the product quality fulfilled the standard of GJB 2895-B,which once again validates the effectiveness of the process simulation method.

关 键 词：碳纤维复合材料 工艺仿真 模压成型 工艺优化 有限元分析 

分 类 号：TB332[一般工业技术—材料科学与工程]