EVALUATION OF THE PROBABILITY DISTRIBUTION OF PITTING CORROSION FATIGUE LIFE IN AIRCRAFT MATERIALS

作     者：王清远 N.KAWAGOISHI Q.Chen R.M.PIDAPARTI 

作者机构：Dept.of Civil Eng.and MechanicsSichuan UniversityChengdu 610065China 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2003年第19卷第3期

页      面：247-252页

核心收录：

学科分类：08[工学] 082402[工学-轮机工程] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0824[工学-船舶与海洋工程] 

基　　金：教育部科研项目 the Society for the Promotion of Science(JSPS) of Japan 

主　　题：pitting corrosion fatigue probabilistic modeling fatigue life prediction 

摘      要：Corrosion and fatigue properties of aircraft materials are known to have a considerable scatter due to the random nature of materials,loading,and environmental conditions.A probabilistic approach for predicting the pitting corrosion fatigue life has been investigated which captures the effect of the interaction of the cyclic load and corrosive environment and all stages of the corrosion fatigue process (*** pit nucleation and growth,pit-crack transition,short- and long-crack propagation).The probabilistic model investigated considers the uncertainties in the initial pit size,corrosion pitting current,and material properties due to the scatter found in the experimental *** Carlo simulations were performed to define the failure probability *** cumulative distribution functions of fatigue life agreed reasonably well with the existing experimental data.