کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
767093 1463111 2014 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The peak stress method to estimate the mode I notch stress intensity factor in welded joints using three-dimensional finite element models
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
The peak stress method to estimate the mode I notch stress intensity factor in welded joints using three-dimensional finite element models
چکیده انگلیسی


• The peak stress method enables one to readily estimate the Notch Stress Intensity Factors (NSIFs).
• The peak stress method has been used with three-dimensional (3D) finite element (FE) analyses.
• Approximate and exact values of the mode I NSIF have been compared successfully.
• The peak stress method can be used to assess the fatigue strength of fillet-welded using 3D FE analyses.

The peak stress method is a simplified, FE-based technique to estimate the mode I and mode II Notch Stress Intensity Factors (NSIFs) at the tip of sharp V-notches or cracks. Then it is useful to readily assess the fatigue strength of fillet-welded joints failing from the weld toe or the weld root according to the local approach based on the NSIFs. Originally based on two-dimensional FE models, the PSM is extended here to be used with three-dimensional FE models, which are increasingly adopted in practical applications. Exact and approximate values of the mode I NSIF at the toe of cruciform and T butt- or fillet-welded tubular joints are calculated and compared successfully.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 115, January 2014, Pages 154–171
نویسندگان
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