南京航空航天大学学报2013，Vol.45Issue(4)：510-514,5.
复合材料加筋板低速冲击有限元模拟分析
Finite Element Simulation Analysis of Low-Velocity Impact on Stiffened Composite Structures
摘要
Abstract
To understand the factors affecting impact damage on composite structures,particularly the effects of impact position and ribs,a finite element model (FEM) of low-velocity impact damage on the composite structure is established via the nonlinear finite element method,combining with the user-defined materials subroutine (VUMAT) of the ABAQUS software.The structural elements chosen for the investigation comprise a series of stiffened composite panels,representative of real aircraft structure.By impacting on the panels at different positions relative to the ribs,the effect of relative position of ribs is found out.Then the simulation results and the experiments data are compared.Finally,the factors affecting impact damage on the structures are discussed.The proposed method is helpful for the design of stiffened composite structures.关键词
复合材料/加筋板/低速冲击/冲击能量Key words
composite/ stiffened composite panels/ low-velocity impact/ impact energy分类
航空航天引用本文复制引用
孙旋,童明波,王涛..复合材料加筋板低速冲击有限元模拟分析[J].南京航空航天大学学报,2013,45(4):510-514,5.基金项目
国家自然科学基金(11002070)资助项目 （11002070）
航空科技联合基金(2012ZC52027)资助项目. （2012ZC52027）
