کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7174368 1465025 2012 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the collapse of dented tubes under combined bending and internal pressure
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
On the collapse of dented tubes under combined bending and internal pressure
چکیده انگلیسی
The tube denting, pressurization, and bending to collapse have been simulated using solid finite element models. In addition to proper modeling the elastic-plastic behavior of the material, the model includes measured yield anisotropies, residual stresses, and wall eccentricity. The model reproduced quite well all aspects of the observed behavior including denting, bending and the ensuing collapse of the dented section, resulting in an inward kink with outward protrusions on either side. All predicted collapse curvatures were slightly lower than measured values. The cause of this discrepancy was traced to several small misalignments of the experimental dents, each of which tends to delay collapse somewhat.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mechanical Sciences - Volume 55, Issue 1, February 2012, Pages 1-12
نویسندگان
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