کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
796585 1466790 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Predicting residual thermal stresses in friction stir welded metals
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Predicting residual thermal stresses in friction stir welded metals
چکیده انگلیسی

A sequentially coupled finite element model of the friction stir welding process has been utilized to study the residual stresses caused by the thermal cycles during friction stir welding of metals. This is a two step simulation process. In the first step, the thermal history is predicted from an input torque based thermal model. The temperature history generated by the thermal model is then sequentially coupled to a mechanical model that predicts the residual thermal stresses. The model does not deal with the severe plastic deformations within the weld nugget and the thermo-mechanically affected regions, a fact that may cause modeled results to deviate from experimentally measured residual stresses. The model is three-dimensional and uses temperature dependent material and thermo-physical properties. Three different materials, AA-2024, AA-6061 and SS 304 L, have been studied.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 174, Issues 1–3, 25 May 2006, Pages 195–203
نویسندگان
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