hypermesh和abaqus的接口分析实例.doc

The three aspects to the fatigue definition are the fatigue material properties, the fatigue parameters and the loading sequence and event definitions.
FATDEF: Defines the elements and associated fatigue properties that will be used for the fatigue analysis.(整合PFAT和MATFAT)
PFAT: Defines the finish, treatment, layer and the fatigue strength reduction factors for the elements.(设置材料属性,即表面加工处理)
MATFAT: Defines the material properties for the fatigue analysis. These properties should be obtained from the material’s S-N curve. The S-N curve, typically, is obtained pletely reversed bending on mirror polished specimen. S-N curves can be one segment or two segments. (定义材料疲劳特性,即S-N曲线)
FATPARM: Defines the parameters for the fatigue analysis. These include bination method, mean stress correction method, Rainflow parameters, Stress Units.(设置疲劳分析方法)
FATSEQ: Defines the loading sequence for the fatigue analysis. This card can refer to another FATSEQ card or a FATEVNT card.(定义loading sequence,即关联载荷谱)
FATEVNT: Defines loading events for the fatigue analysis.(定义疲劳分析工况)
FATLOAD: Defines fatigue loading parameters.(关联有限元载荷工况与时间历程)
TABLEFAT: Defines the y values for each point on the time loading history.(定义载荷时间历程)
方法二:
uate fatigue life with the S-N method through process manager step by step(思路同方法一)
From Tools menu, select Fatigue Process > Create New.