摘要
利用ABAQUS软件对C/SiC复合材料的纳米压痕实验进行有限元分析,引入内聚力模型来组建材料的本构模型。在细观力学层面上利用Oliver-Pharr方法对不同位置压痕点的载荷位移曲线进行分析,研究复合材料各组分原位力学性能的影响因素,揭示界面强度、界面厚度对纳米压痕过程中载荷位移曲线、材料硬度、弹性模量的影响规律。该仿真为C/SiC复合材料的工程应用、加工去除机理的研究及纳米压痕实验的参数优化提供理论依据与高效方法。
Nanoindentation of C/SiC has been simulated by ABAQUS. Cohesive element was useu to form the material constitutive model. Calculation and analysis were implemented on the load-displacement curves by means of the Oliver-Pharr method to obtain the effect of in situ characterization of composites. Interface strength and thickness were taken into consideration to analyze the behavior of the load-displacement curves, hardness and modulus of composites. Finite element simulation of nanoindentation proposes an effective theoretical basis and an efficient method for engineering application, processing mechanism of removing, and the optimization of nanoindentation parameters of C/SiC composites.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2016年第1期49-53,74,共6页
Journal of Materials Science and Engineering
基金
国家自然科学基金资助项目(51275346)
教育部博士点基金资助项目(20110032110007)
