کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
514622 866780 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Alternative positional FEM applied to thermomechanical impact of truss structures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Alternative positional FEM applied to thermomechanical impact of truss structures
چکیده انگلیسی

This paper presents a formulation to deal with dynamic thermomechanical problems by the finite element method. The proposed methodology is based on the minimum potential energy theorem written regarding nodal positions, not displacements, to solve the mechanical problem. The thermal problem is solved by a regular finite element method. Such formulation has the advantage of being simple and accurate. As a solution strategy, it has been used as a natural split of the thermomechanical problem, usually called isothermal split or isothermal staggered algorithm. Usual internal variables and the additive decomposition of the strain tensor have been adopted to model the plastic behavior. Four examples are presented to show the applicability of the technique. The results are compared with other authors’ numerical solutions and experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Finite Elements in Analysis and Design - Volume 46, Issue 11, November 2010, Pages 1008–1016
نویسندگان
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