کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
767962 897259 2008 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical modelling of damage behaviour of laser-hybrid welds
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Numerical modelling of damage behaviour of laser-hybrid welds
چکیده انگلیسی

The effect of laser-hybrid welds on deformation and failure behaviour of fracture mechanics specimens is investigated in order to provide quantitative prediction of damage tolerance and residual strength. The simulation of crack initiation and crack extension in hybrid welds is performed by applying GTN damage model. The identification of damage parameters requires combined numerical and experimental analyses. The tendency to crack path deviation during crack growth depends strongly on the constraint development at the interface between base and weld metal. In order to quantify the influence of local stress state on the crack path deviation, the initial crack location is varied. Finally, the results from fracture mechanics tests are compared to real component, beam-column-connection, with respect to fracture resistance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 75, Issue 11, July 2008, Pages 3251–3263
نویسندگان
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