Simulation model and verification of curing deformation of aramid layer-honeycomb sandwich U-shaped leading edge
In this paper,the curing deformation of aramid fibre-honeycomb sandwich U-shaped leading edge structure is investigated by a combination of finite element simulation and experimental verification.The simulation models of curing temperature field and curing deformation field of the U-shaped leading edge were established by considering the curing heat release,thermo-mechanical coupling and chemical shrinkage of the resin.In the test preparation,the forming process of pre-curing outer skin,then combining with honeycomb core,adhesive film and foam glue,and finally laying the inner skin and gluing and curing again was adopted.The results show that the cu-ring deformation of the wide side and narrow side of the component predicted by the simulation model is in good a-greement with the actual,which can provide guidance and basis for the subsequent mold modification of the leading edge component.
curing moldingaramid compositehoneycomb sandwichU-shaped leading edgefinite element calculation
万方数据
维普
