کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
808761 905799 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Axial compression and energy absorption characteristics of high-strength thin-walled cylinders under impact load
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Axial compression and energy absorption characteristics of high-strength thin-walled cylinders under impact load
چکیده انگلیسی

Non-linear finite element software LS-DYNA is used to analyze the axial compression behavior and energy absorption of a high-strength thin-walled member under an impact load. To elucidate the effect of dynamic impact on the strain rate, the Cowper–Symonds equation is applied to analyze the plastic state of stress and the onset of dynamic yielding under different strain rates, such that the modeled deformation behavior of the member is consistent with the actual situation. Results for the thin-walled members made of mild steel and dual phase steel are compared. Assuming two different materials with equal sectional areas, an analysis confirms that the energy absorption of high-strength steel thin-walled component is better than the mild steel thin-walled component. Hence, thin-walled tubes made of high-strength steel are investigated using a series of analysis. The relationships between displacement and load, average load and energy absorption properties are obtained.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theoretical and Applied Fracture Mechanics - Volume 53, Issue 1, February 2010, Pages 1–8
نویسندگان
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