摘要
建立单根断裂碳纤维包埋在环氧树脂基体中的细观力学模型，结合界面层与纤维、基体的粘合因素，采用有限元方法分析了界面层厚度、模量及界面层的弹塑性对于纤维承载能力的影响。从理论上初步阐明了柔性界面层、过渡界面层在不同界面粘合情况下对复合材料力学性能的影响规律。
A micromechanics model of a single carbon fiber embedded in an epoxy system containing an elastoplastic interlayer is described. The finite element method is used to study the effect of thickness and modulus of the interlayer on the stress transfer in this composite system after the fiber breakage. Analysis results indicate that the optimum interlayer can decrease the shear stress concentration and improve the load carrying capabilities of the broken fiber under different interfacial bonding conditions.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
1996年第3期21-26,共6页
Acta Materiae Compositae Sinica
关键词
界面
脱粘
有限元分析
应力传递
复合材料
interlayer, debonding, finite element analysis, stress transfer
