复合材料科学与工程Issue(2)：13-19,7.DOI:10.19936/j.cnki.2096-8000.20240228.002
复合材料加筋板高能量低速冲击损伤特性数值研究
Numerical study of high-energy low-velocity impact damage on stiffened composite panel
摘要
Abstract
The high-energy wide-area blunt impact problem is a major threat for the operation safety of com-posite aircrafts.The Hashin criterion and the bilinear progressive damage model were adopted to simulate the in-plane ply failure,and the cohesive interface elements have been implemented to simulate the delamination.The Og-den hyperelastic material model was used to define the rubber's constitutive behavior.Numerical simulations were carried out to validate the effectiveness of the analysis methods,and then the damage characteristics of stiffened composite panel under high-energy low-velocity rigid and soft impacts were investigated.The impact response and damage process of high-energy low-velocity impact on different locations of the skin by rigid and rubber impactors were analyzed,respectively.The deformation and damage modes of stiffened composite panel during the impact process were compared and studied.The results show that the contact pressure for rigid impacts were larger,which leads to more severe local deformation and damages.The rubber impactor could blunt the impact and reduce the contact pressure,while the peak contact forces were about 23％higher than that of rigid impacts.Damages were most serious under the rigid impact at the stiffeners,in which the damages mainly located at the skin,stiffener webs and flanges,while the damages mainly located at the back of skin and stiffener webs for rubber impact.Compared with the rigid impacts,the impact damages under rubber impacts were less serious and external barely visible.关键词
复合材料加筋板/高能量冲击/低速冲击/橡胶冲击/损伤特性Key words
stiffened composite panel/high-energy impact/low-velocity impact/rubber impact/damage char-acteristic分类
通用工业技术引用本文复制引用
冯振宇,李玲玲,邹君,解江,王计真,郭亚周..复合材料加筋板高能量低速冲击损伤特性数值研究[J].复合材料科学与工程,2024,(2):13-19,7.基金项目
机械结构力学及控制国家重点实验室开放课题(MCMS-E-0522Y03) （MCMS-E-0522Y03）
中央高校基金(3122022099) （3122022099）
