This paper analyzes the admissible stresses used to calculate the diamter of axles according to torsional stress and resultant stress, and some suggestions are given.
对按扭矩估算轴径和按弯扭合成力矩计算转轴轴径公式中的许用应力进行了分析，给出了修正意见。
2
The block-structural plane model is used for constructing the statically admissiblestress fields which satisfy the equilibrium conditions, boundary conditions and yield criteria.
根据下限定理，构造了满足完全平衡条件、边界条件和屈服条件的静力许可场；
3
The main reason of the main beam down deflection was that the most complex stress exceeded the admissible value and achieved the yield limit value.