摘要
为了探究孔隙率对织物碳纤维/环氧树脂复合材料层合板拉伸强度和压缩强度的影响规律,分别测量了孔隙率为0.33%、0.71%及1.50%的复合材料层合板的拉伸强度及压缩强度并进行有限元模拟.试验结果表明:随着孔隙率的增加,复合材料层合板的拉伸强度和压缩强度均呈下降趋势.建立了适用于织物纤维增强复合材料的静态力学强度的失效准则,结合刚度突然退化模型,通过引入不同孔隙率复合材料的基本强度参数,使用ABAQUS软件建立有限元模型,对不同孔隙率的织物碳纤维/环氧树脂复合材料层合板的拉伸强度及压缩强度进行了较为准确的预测.
The study investigated the influence of the porosity on the tensile strength and compressive strength of the carbon fiber fabric reinforced epoxy composites laminates.The tensile strength and compressive strength test on the carbon fiber reinforced polymer（CFRP） laminates with porosity of 0.33%,0.71% and 1.50% were conducted and simulated by a finite element analysis model.The experiment results show that the tensile strength and compressive strength decrease as the void contents increase.The failure criterion of static mechanical strength of the fabric fiber reinforced composites is provided.Basic strength parameters of composites were used to evaluate the mechanical properties of CFRP laminates with different porosities.A finite element analysis model was established by using ABAQUS software,combined with a model of sudden stiffness degradation.The tensile strength and compressive strength of the fabric carbon fiber reinforced the epoxy composites laminates were accurately simulated.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2013年第3期389-393,共5页
Journal of Harbin Engineering University
关键词
复合材料层合板
碳纤维
孔隙
有限元模拟
强度预测
composites laminates
carbon fiber
void
finite element simulation
strength prediction
