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Title of article :
Alternative positional FEM applied to thermomechanical impact of truss structures
Author/Authors :
Carrazedo، نويسنده , , Rogério and Coda، نويسنده , , Humberto Breves Coda and Wilson Sergio Venturini، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
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Abstract :
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.
Keywords :
Additive decomposition , Thermo-elasto-plasticity , Positional finite element method
Journal title :
Finite Elements in Analysis and Design
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Link To Document :