کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
808167 | 905678 | 2010 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Cyclic plastic deformation and cyclic hardening/softening behavior in 304LN stainless steel Cyclic plastic deformation and cyclic hardening/softening behavior in 304LN stainless steel](/preview/png/808167.png)
Low cycle fatigue experiments have been conducted on 304LN stainless steel in ambient air at room temperature. Uniaxial ratcheting behavior has also been studied on this material and in both engineering and true stress controlling modes. It is shown that material’s cyclic hardening/softening behavior in low cycle fatigue and in ratcheting is dependent not only on material but also on the loading condition. Improvement of ratcheting life and mean stress dependent hardening are observed in the presence of mean stress. A method based on the strain energy density (SED) is used to represent cyclic hardening/softening behavior of the material in this work. The decrease of SED with cycles is an indication that the life in low cycle fatigue and in ratcheting is improved. The SED represents the area of the hysteresis loops.
Journal: Theoretical and Applied Fracture Mechanics - Volume 54, Issue 1, August 2010, Pages 63–70