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
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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.
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.
引文
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[13] ESPINOSA H D,LEE S,MOLDOVAN N. A novel fluid structure interaction experiment to investigate deformation of structural elements subjected to impulsive loading[J]. Experimental Mechanics,2006,46:805-824.
[2] LEBLANC J,SHUKLA A. Dynamic response and damage evolution in composite materials subjected to underwater explosive loading:An experimental and computational study[J]. Composite Structures,2010,92:2421-2430.
[3] LEBLANC J,SHUKLA A. Dynamic response of curved composite panels to underwater explosive loading:Experimental and computational comparisons[J]. Composite Structures,2011,93:3072-3081.
[4] LEBLANC J,SHUKLA A. Response of E-glass/vinyl ester composite panels to underwater explosive loading:Effects of laminate modifications[J]. International Journal of Impact Engineering,2011,38:796-803.
[5] LATOURTE F,GREGOIRE D,ZENKERT D,et al. Failure mechanisms in composite panels subjected to underwater impulsive loads[J]. Journal of the Mechanics and Physics of Solids,2011,59:1623-1646.
[6] TRAN P,NGO T D,MENDIS P. Bio-inspired composite structures subjected to underwater impulsive loading[J].Computational Materials Science,2014,82:134-139.
[7] WEI X D,TRAN P,VAUCORBEIL A,et al. Three-dimensional numerical modeling of composite panels subjected to underwater blast[J]. Journal of the Mechanics and Physics of Solids,2013,61:1319-1336.
[8]项大林,荣吉利,李健,等.等效水下爆炸冲击加载装置的设计研究[J].兵工学报,2014,35(6):857-873.
[9]任鹏,张伟,刘建华,等.高强度水下爆炸等效冲击波加载特性研究[J].兵工学报,2015,36(4):717-723.
[10]项大林,荣吉利,何轩,等.基于三维数字图像相关方法的水下冲击载荷作用下铝板动力学响应研究[J].兵工学报,2014,35(8):1211-1218.
[11] VIKRANT T,MICHAEL A S,MCNEILL S R,et al. Application of 3D image correlation for full-field transient plate deformation measurements during blast loading[J]. International Journal of Impact Engineering,2009,36:862-874.
[12] ARORA H,HOOPER P A,DEAR J P. The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures[J]. Experimental Mechanics,2012,52:59-81.
[13] ESPINOSA H D,LEE S,MOLDOVAN N. A novel fluid structure interaction experiment to investigate deformation of structural elements subjected to impulsive loading[J]. Experimental Mechanics,2006,46:805-824.