A stacking sequence optimization strategy for process-induced deformation of multi-layer thick asymmetric laminates

被引:0
|
作者
Jia, Hongli [1 ]
Zhu, Yingdan [1 ,2 ]
Yan, Chun [1 ]
Chen, Gang [1 ]
Liu, Dong [1 ]
机构
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Robot & Intelligent Mfg Equi, Ningbo 315201, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China
基金
国家重点研发计划;
关键词
curing process simulation; multi-layer asymmetric laminates; process-induced deformation; stacking sequence optimization; SPRING-IN; CURE CYCLE; COMPOSITE; DISTORTIONS;
D O I
10.1002/pc.29048
中图分类号
TB33 [复合材料];
学科分类号
摘要
The occurrence of process-induced deformations of composites laminates is challenging for assembly accuracy and may lead to a service life reduction of parts. However, it can be obviously mitigated through different optimization strategies on the basis of the accurate curing process simulation. In this study, a stacking sequence optimization strategy is proposed and applied to multi-layer thick asymmetric laminates. The shapes of deformed laminate plates are experimentally investigated in virtue of the three-dimensional coordinate measuring machine. The thermo-chemical-mechanical behaviors of plates are first verified through the comparisons of model predicted and experimental process-induced deformations. Then the nonlinear control formula achieved through the regression model is proposed for the direct relationship between stacking sequences and process-induced deformations. Finally, the required solutions are generated by solving the control formula. With the comparisons between the average deformations before and after optimizations, it is found that the magnitudes of deformations are significantly reduced, especially when the unoptimizated deformations are large.
引用
收藏
页码:1427 / 1441
页数:15
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