Stacking sequence optimization of composite stiffened panel considering strength and curing deformation
Received:January 16, 2021  Revised:February 18, 2021
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DOI:10.7511/jslx20210116002
KeyWord:composite  stiffened panels  failure analysis  curing deformation  stacking sequence optimization
           
AuthorInstitution
许英杰 西北工业大学 机电学院, 西安
孙勇毅 西北工业大学 机电学院, 西安
杨儒童 西北工业大学 机电学院, 西安
张卫红 西北工业大学 机电学院, 西安
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Abstract:
      Composite stiffened panels are primary structures in aircraft.The design of the composite stacking sequence can improve the strength of the panels,but it will also affect the curing deformation.Therefore,the stacking sequence design of composite panels must consider both strength and curing deformation.In this study,the simulation models of the failure and the curing deformation of the composite panels are established.Based on the design of experiment method,NSGA-II genetic algorithm and the simulation models,a stacking sequence optimization method which considers strength and curing deformation simultaneously is developed for the composite stiffened panels.It is found that the developed optimization method could improve the strength and significantly reduce the curing deformation.