کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
808759 905798 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An approximate lower bound damage-based yield criterion for porous ductile sheet metals
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
An approximate lower bound damage-based yield criterion for porous ductile sheet metals
چکیده انگلیسی

An approximate lower bound damage-based yield criterion is developed for isotropic porous ductile sheet metals. The matrix of the sheet metals is assumed to be elastic-perfectly plastic and obey the von Mises yield criterion with periodically distributed voids. Gurson’s unit-cell model is simplified to characterize the sheet metals. To accommodate biaxial loading, an approach of stress superposition is adopted for the stress analysis. Numerical results were calculated and compared to Gurson’s extended yield criterion and experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theoretical and Applied Fracture Mechanics - Volume 55, Issue 1, February 2011, Pages 76–81
نویسندگان
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