摘要
采用二次Mori-Tanaka模型描述含有微孔和增强纤维的注塑成型BMC材料,在模型里考虑了纤维的断裂和微孔的增大所引起材料性能的改变。同时运用了两种失效判别法,即根据纤维断裂的百分率和微孔增大产生的能量变化来判断材料是否失效。通过模型建立BMC材料宏观与微观力学特性的关系,得到BMC材料的力学性能演化过程。最后对比实验结果与仿真结果。
Mori-Tanaka model is used two times to describe the injection molding BMC reinforcing fibers. The changes in material properties caused by the breaking and the shedding containing voids and of the fibers, and the increases of the holes are considered. While we use two kinds of failure criteria, one is based on the percentage of shedding fibers, another is based on the change of energy caused by the increases of the holes. By modeling the relationship between the macro-mechanical and micro-mechanical, we obtained the evolution of the mechanical properties of BMC. Finally. We compare the experimental results with the simulation results.
出处
《机电一体化》
2013年第5期89-92,共4页
Mechatronics
