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对描述材料疲劳损伤过程的智能仿真方法进行了研究，建立了新的模型·它能定量地反映载荷顺序效应和材料疲劳特性，准确地描述材料疲劳损伤的复杂变化历程，材料的疲劳韧性视为常量，可作为失效判据·选用正火３５ 钢进行了两级载荷及随机载荷疲劳试验，两种载荷作用下其寿命估算的最大误差分别为１５－７４ ％ 和８－９ ％·其寿命估算值与试验值吻合较好，分析精度较高·
The intelligent simulation method for describing the fatigue damage process of materials is studied and a new model is established. It can quantitatively reflect the load sequence effect and the fatigue properties of materials, accurately describe the complex change process of material fatigue damage, and the fatigue toughness of materials is considered as Constant, can be used as a failure criterion · Normalized 35 steel was selected for two-stage load and random load fatigue test, the maximum error of life expectancy under the two loads were 15-74% and 8-9% · Life expectancy The values agree well with the experimental values and the analysis accuracy is high