PREDICTION OF THE LIFETIME DISTRIBUTION OF HIGH‐STRENGTH COMPONENTS SUBJECTED TO FATIGUE LOADING
PREDICTION OF THE LIFETIME DISTRIBUTION OF HIGH‐STRENGTH COMPONENTS SUBJECTED TO FATIGUE LOADING
复制标题
疲劳载荷下高强度部件的寿命分布预测
DOI:
10.1111/j.1460-2695.1993.tb00127.x
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发表时间:
1993
影响因子:
3.7
通讯作者:
U. Quadfasel
中科院分区:
文献类型:
--
作者:
A. Brückner;H. Jäckels;U. Quadfasel
A probabilistic model is developed for predicting the lifetime distribution of a high-strength component subjected to low cycle fatigue loading. The damage process considered consists of two consecutive stages. First, cracks are initiated from microstructural inhomogeneities such as non-metallic inclusions. These cracks will then extend stably until final failure occurs or the component is removed from service. The probabilistic model is used to determine the maximum tolerable inclusion size for a model turbine disc. This quantity is defined as the size of the initial defect for which the number of load cycles to failure at a given reliability level exceeds the design life of the component. This maximum tolerable inclusion size is compared with the results of a deterministic lifetime analysis.
影响因子:
5.4
作者:
NEWMAN, JC;RAJU, IS
通讯作者:
RAJU, IS