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用有限元法和动态光弹性法研究了带有圆孔的平面直杆在冲击载荷作用下动态应力集中的优化问题。结果表明,在主孔下方引入辅助孔可减小动态应力集中系数,得出了动态应力集中系数随辅助孔直径的变化规律,获得了辅助孔的优化尺寸。
The finite element method and dynamic photoelasticity method are used to study the optimization of dynamic stress concentration under the action of impact load. The results show that the introduction of auxiliary holes below the main hole can reduce the dynamic stress concentration factor. The dynamic stress concentration factor with the auxiliary hole diameter changes, and obtain the optimized size of the auxiliary hole.