中国舰船研究2024，Vol.19Issue(4)：263-270,8.DOI:10.19693/j.issn.1673-3185.03337
PVC泡沫夹芯板单点低速冲击动态响应与冲击后剩余抗压强度试验研究
Experimental study on dynamic response and residual compressive strength of composite sandwich panel with PVC foam core under single-point low-velocity impact
摘要
Abstract
[Objectives]In this paper,an orthogonal braided glass fiber composite sandwich panel with a PVC foam core and dimensions of 150 mm×100 mm×26 mm is selected as the research object in order to study the impact mechanical properties of composite sandwich panels.The dynamic response and residual compressive strength of the panel under single-point low-velocity impact are then analyzed.[Methods]First,a series of drop hammer impact tests are conducted to study the failure mode,impact force-displacement re-sponse and energy absorption characteristics of the panel under different impact energies.Next,quasi-static compression experiments are conducted to investigate the maximum compression load capacity and residual compressive strength under impact damage.[Results]There are significant differences in the failure modes and impact force-displacement characteristics of the sandwich panel under different impact energies.The core mainly absorbs impact energy through compression deformation.As the impact energy increases,the maximal impact force,dent depth and absorbed energy of panel gradually increase,while the maximum compression load capacity and residual strength decrease after impact.The damage degree of the impacted composite sand-wich panel determines its residual compressive strength.[Conclusion]The findings of this study can provide valuable references for the impact resistance design of naval ship structures.关键词
复合材料夹芯板/冲击/失效模式/压缩/剩余强度Key words
composite sandwich panels/impact/failure mode/compression/residual strength分类
交通工程引用本文复制引用
陈翀一,程勇军,蔡伟,印卓,胡海晓,王静南,余彧..PVC泡沫夹芯板单点低速冲击动态响应与冲击后剩余抗压强度试验研究[J].中国舰船研究,2024,19(4):263-270,8.基金项目
中央高校基本科研业务费专项资金资助项目(2022IVA175) （2022IVA175）
