The Particle-reinforced Composite with Interfacial Debonding
In order to quantitatively analyze the effect of particle/matrix interfacial debonding on the mechanical behavior of composite materials consisting of stiffness particles and elastic matrix, based on the Tans micromechanics constitutive model, the process of finite element analysis is programmed. As shown from the simulation, it is approved that the interfacial debonding governs the mechanical behavior of composites, and the particle sizes have an important effect on the interfacial debonding. Firstly, there is a critical particle size, under the applied tension loading, when the particle is smaller than the critical size, this leads to the hardening behavior of composites. When the particle is larger than the critical size, the softening behavior is present. Secondly, there is a characterize particle size for the composites mixing;with two different particle sizes. It has revealed that it is obviously different of the mechanical behavior of the composites, which have different mixtures of large and small particles, compared with the composites with small ones only. Finally, the model is capable of predicting the mechanical behavior of composites as long as suitable adhesive characteristic values of particle/matrix interface are available.
micromechanics particle-reinforced composite constitutive relation interfacial debonding
GONG Jian-liang LIU Pei-Jin LI Qiang
Science and Technology on Combustion, Internal Flow and Thermal-Structure Laboratory,Northwestern Polytechnical University, Xian, China
国际会议
4th International Symposium on Jet Propulsion and Power Engineering(第四届喷气推进与动力工程国际会议 ISJPPE2012)
西安
英文
498-501
2012-09-10（万方平台首次上网日期，不代表论文的发表时间）