In this paper, the stress state of an ellipsoidal head with pipe reinforcement holes analysed by the finite element method is presented.
本文采用有限元法分析了管壁加强开孔椭球壳的应力状况，讨论了壳体温度对于壳体应力和材料强度的影响。
The stress principle of beam is analysed by the method of truss analogue, and different principle of different reinforcement forms has been explored.
运用桁架比拟理论对缺口梁端部的受力模型进行了分析，探索了不同方式加固效果存在差异的原理。
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