基体能量释放率对开孔层压板承载能力的影响研究

Study on the effect of matrix energy release rate on the bearing capacity of porous laminate

文章针对复合渐进损伤分析中能量释放率对计算结果的影响进行系统的研究。数值试验结果显示,基体的能量释放率对复合材料结构的初始破坏载荷有较大影响;对结构最终破坏载荷影响不显著。根据数值试验结果对基体能量释放率影响机理进行阐述。研究结果可为复合材料计算分析提供理论指导,为参数设置提供依据。

In this paper, the influence of energy release rate on the calculated results in composite progressive damage analysis is studied systematically. The numerical results show that the energy release rate of the matrix has a great influence on the initial failure load of the composite structure, but has no significant effect on the final failure load of the structure. According to the results of numerical test, the influence mechanism of matrix energy release rate is described. The research results can provide theoretical guidance for the calculation and analysis of composite materials and provide the basis for parameter setting.