Low cycle fatigue of welded very and ultra-high strength steels
Low cycle fatigue of welded very and ultra-high strength steels
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焊接高强度钢和超高强度钢的低周疲劳
DOI：
10.1016/j.prostr.2019.12.028
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
T. Ummenhofer
中科院分区：
文献类型：
--
作者：
J. Hrabowski;T. Ummenhofer
描述了现代超高强度和超高强度钢在焊接条件下的低周疲劳行为，并定义了弹性设计准则的应用范围。根据名义应力法和缺口应力法给出了设计建议。因此，由高强度钢制成的焊接细节可以设计用于低周疲劳应用。此外，可以进行更准确的评估，从而经济地应用高强度细晶结构钢。
Low-cycle fatigue behavior of modern very high strength and ultra-high strength steels with nominal strengths up to 1100 N/mm² in welded condition is described and the application limit of elastic design rules is defined. Design recommendations are given based on the nominal stress approach as well as the notch stress approach. Thus, welded details made of high-strength steels can be designed for low-cycle fatigue applications. Furthermore, a more accurate assessment can be done, allowing for an economical application of high-strength fine-grain structural steels.