کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6917807 | 862970 | 2013 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A solid-beam finite element and non-linear constitutive modelling
ترجمه فارسی عنوان
یک عنصر محدود و یک مدل سازنده غیر خطی
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کلمات کلیدی
روش عنصر محدود تکنولوژی عنصر محدود عناصر پرتو،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
The successful concept of solid-shell formulations which brings up several advantages with respect to classical shell elements is transferred to beam structures. The resulting three-dimensional solid-beam element possesses eight nodes with only displacement degrees-of-freedom. A reduced integration concept is worked out which accounts for the presence of two thickness directions. The relevant locking phenomena are treated by a combination of the assumed natural strain method and the enhanced assumed strain method. It is shown at which points the steps to derive the solid-beam formulation deviate from the derivation of the corresponding solid-shell. Validations for elasticity and elasto-plasticity with a reference to classical beam finite elements are provided. In particular beam structures with arbitrary four-sided cross-section can efficiently be modelled by using only one element within the cross-section. If more complex cross-sections are modelled by using several elements within the cross-section, the formulation shows a superior performance compared with standard solid elements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 265, 1 October 2013, Pages 195-212
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 265, 1 October 2013, Pages 195-212
نویسندگان
J. Frischkorn, S. Reese,