玻璃纤维增强复合板在水中冲击载荷下的响应与破坏研究  

Dynamic Response and Failure Mode of Glass Fiber Reinforced Polymer Plates Subjected to Underwater Impulsive loads

作　　者：项大林 谢志丰[1] 郭振 肖士利 荣吉利 XIANG Dalin;XIE Zhifeng;GUO Zhen;XIAO Shili;RONG Jili(Beijing Institute of Aerospace Systems Engineering, Beijing 100076, China;School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京宇航系统工程研究所,北京100076 [2]北京理工大学宇航学院,北京100081

出　　处：《兵器装备工程学报》2019年第6期177-180,共4页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金青年基金项目(51208042);国家自然科学基金项目(11272057)

摘　　要：采用水中冲击加载装置,结合数字图像相关方法,对玻璃纤维板进行了冲击加载实验研究,获得了靶板的实时离面位移场,分析了靶板的动态响应特点与永久破坏模式。结果表明,玻璃纤维增强复合材料板受载后,变形由约束边界向中心呈环形扩展,由于纤维板的内部层裂损伤,纤维板中心部位出现显著的变形震荡现象;在3种冲击强度下,纤维板呈现出两种典型的毁伤模式,即约束边界基体层裂与边界剪切撕裂。Underwater impact experiments of glass fiber reinforced polymer(GFRP)plate were carried out using an underwater impact loading device and a three-dimension(3D)dynamic digital image correlation(DIC)test systems.The out-of-plane displacements of GFRP targets were obtained.The dynamic response and permanent damage of GFRP plates were studied.The investigation shows that the deformation growth of the GFRP plates presents annulus expanding from the boundary to the center.Deformation vibration appears at the plate center due to matrix spallation fracture.There are two typical damage mode for GFRP plates,matrix cracking and tensile tearing at the clamped edges.

关 键 词：冲击载荷 玻璃纤维板 离面位移场 层裂 撕裂 

分 类 号：O38[理学—流体力学]