کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
767987 897268 2008 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ductile damage development in friction stir welded aluminum (AA2024) joints
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Ductile damage development in friction stir welded aluminum (AA2024) joints
چکیده انگلیسی

Ductile damage development in a friction stir welded aluminum joint subjected to tension is analyzed numerically by FE-analysis, based on a total Lagrangian formulation. An elastic–viscoplastic constitutive relation that accounts for nucleation and growth of microvoids is applied. Main focus in the paper is on the interaction between changes in the material parameters in different regions of the weld, the damage development and the position of the final fracture. Especially changes in the yield stress profile transverse to the weldline are examined, since some process parameters have been shown experimentally to affect this. It is found that damage development is highly influenced by changes in the yield stress profile and a shift in final failure is shown for comparable yield stress in the thermo-mechanically affected zone (TMAZ) and the nugget zone (NG).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 75, Issue 10, July 2008, Pages 2795–2811
نویسندگان
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