计算结果显示，结构中应力响应最大值发生在筛箱短横梁处，与结构实际断裂位置一致。
Results show that the position where the maximum stress happens in FEA and the actual rupture position are the same.
利用SEM对实际使用时断裂的髋关节的断口和表面进行了分析，认为此关节的断裂为以弯曲应力为主的腐蚀疲劳断裂。
The fracture and the surface of a hip joint fractured invivo has been studied by SEM. It is concluded that the fracture was due to corrosion fatigue cracking by bending stress.
根据岩石的全应力应变试验，结合现场实际观测数据，对以应变为指标的岩梁断裂步距表达式做了初步验证。
According to the total stress-strain tests, the expression of caving step length of roof is validated combining with the observed data.
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