Hybrid finite element for analysis of functionally graded beams

Date

2017-01-01

Author

Sarıtaş, Afşin
Soydas, Ozan

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A hybrid finite element model is presented, where stiffness and mass distributions over a beam with functionally graded material (FGM) are accurately modeled for both elastic and inelastic material responses. Von Mises and Drucker-Prager plasticity models are implemented for metallic and ceramic parts of FGM, respectively. Three-dimensional stress-strain relations are solved by a general closest point projection algorithm, and then condensed to the dimensions of the beam element. Numerical examples and verification studies on a proposed element demonstrate accuracy and robustness under inelastic material response as well as capturing fundamental, higher, and mix modes of vibration frequencies and shapes.

Subject Keywords

Functionally graded material, Hybrid finite element, Inelastic behavior, Mixed formulation, Vibration

URI

https://hdl.handle.net/11511/39571

Journal

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES

DOI

https://doi.org/10.1080/15376494.2015.1128024

Collections

Department of Civil Engineering, Article

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Citation Formats

A. Sarıtaş and O. Soydas, “Hybrid finite element for analysis of functionally graded beams,” MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, pp. 228–239, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39571.