Fully coupled thermo-mechanical analysis of bi-directional FGM beams using NURBS isogeometric finite element approach
Fully coupled thermo-mechanical analysis of bi-directional FGM beams using NURBS isogeometric finite element approach
- New search for: Lezgy-Nazargah, M.
- New search for: Lezgy-Nazargah, M.
Abstract The fully coupled thermo-mechanical behavior of bi-directional functionally graded material (FGM) beam structures is studied using a computationally low cost isogeometric finite element model. In the proposed analysis, the temperature is considered as a primary variable. The kinematical equations of the bi-directional FGM beam are described by a refined high order global–local theory. A combination of polynomial and exponential expressions is used to introduce the in-plane displacement field. This representation of the in-plane displacement field allows avoiding shear correction factors. Concerning the thermal part, a high-order temperature field is considered through the thickness direction of the bi-directional graded beam. The capability of this novel formulation has been assessed through various thermal and thermo-mechanical tests. To this aim, the obtained numerical results from the proposed isogeometric formulation have been compared with thermo-elasticity solutions or other available results in open literature. It is found that the results obtained from the present beam formulation agree quite well with the reference results.
Document information
Fully coupled thermo-mechanical analysis of bi-directional FGM beams using NURBS isogeometric finite element approach
Aerospace Science and Technology ; 45 ; 154-164
2015-05-15
11 pages
Article (Journal)
Electronic Resource
English
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