玻纤铝合金层板受低速冲击损伤实验和仿真  

Low-velocity impact damage on glass fibre reinforced aluminium laminates: experiments and finite element analysis

作　　者：万云[1] 章继峰[1] 王振清[1] 周利民[2] 

机构地区：[1]哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001 [2]香港理工大学机械工程系,香港999077

出　　处：《哈尔滨工程大学学报》2015年第6期769-773,共5页Journal of Harbin Engineering University

基　　金：港澳台科技合作专项资助项目(2014DFH50060)

摘　　要：为了研究GLARE板受冲击载荷下破坏机理。落锤实验分析了GLARE板抗低速冲击性能,给出了其在实验中的破坏响应。实验分析了该材料的时间接触力曲线、时间变形曲线、时间能量吸收曲线、以及变形接触力曲线变化过程和试件两面的铝合金层的破坏情况。在ABAQUS软件中,建立了落锤低速冲击的有限元模型。通过对比在不同冲击能量时实验和数值模拟的时间接触力曲线、时间变形曲线、时间能量吸收曲线和铝合金层的破坏,验证了有限元模型的可靠性。在分析对比不同冲击时复合材料和铝合金破坏之后,发现复合材料层的破坏程度变化并不大,相反铝合金层的破坏程度有较大变化,所以铝合金层在材料整体抗冲击性能起重要作用。In order to investigate the failure mechanism of glass-fiber reinforced aluminum（ GLARE） laminates under impact loading,the anti-low speed impact performance by a dropweight test on GLARE was presented,and the damage response of GLARE laminates in the test was given. The study first analyses the curves of time-contact force,time-deflection,time-absorbed energy,deflection-contact force,and the damage to two aluminum layers of the test specimen. Next,a numerical methodology in ABAQUS is employed to simulate the response in low-velocity impact of GLARE laminates and establish the finite element model. After comparing the time-contact force,timedeflection,time-absorbed energy,and the damage to aluminum layers under different circumstances of impact energy between experimental and simulation results,the reliability of the finite element model method was validated. After comparing the damages to composites and aluminum under different impact energy,no big difference in the damage to the composite layer was found. However,more damage in the aluminum layer when the impact energy is higher was found,proving that the aluminum layers play an important role in the entire anti-impact performance of materials.

关 键 词：玻璃纤维金属层合板 低速冲击 动态响应 损伤演化 损伤机理 

分 类 号：TB331[一般工业技术—材料科学与工程]