Extension of the FGM Beam Finite Element by Warping Torsion

Justín, Murín; Juraj, Hrabovský; Mehdi, Aminbaghai; Vladimír, Kutiš; Juraj, Paulech; Stephan, Kugler

doi:10.2478/scjme-2019-0017

Abstract

In the contribution, our 3D FGM Timoshenko beam finite element with 12x12 stiffness and mass matrices for doubly symmetric open and closed cross-section [1] is extended by warping torsion effect (non-uniform torsion) to 14x14 finite element matrices. A longitudinal continuous variation of effective material properties is considered by the finite element equations derivation, which can be obtained by homogenization of the spatial varying material properties in real FGM beam. Results of numerical elastostatic non-uniform torsional analysis of the FGM cantilever beam of I-cross-section are presented and the accuracy and effectiveness of the new FGM beam finite element is discussed and evaluated.

References

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Extension of the FGM Beam Finite Element by Warping Torsion

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