Improved First Order Formulation for Buckling Analysis of Functionally Graded Beams
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Issue Date
2020-09-30Keywords
bucklingfinite element model
functionally graded beams
Improve first order theory
stability analysis
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2020 Congreso Internacional de Innovacion y Tendencias en Ingenieria, CONIITI 2020 - Conference ProceedingsDOI
10.1109/CONIITI51147.2020.9240368Additional Links
https://ieeexplore.ieee.org/document/9240368Abstract
In this research, an improved first order formulation is presented to study the critical buckling load in functionally graded beams. The formulation has five independent variables in comparison with the Timoshenko theory that has three. The Trefftz criterion is utilized with incremental and fundamental states to define the stability analysis. Virtual work statements are derived for the finite element model where the field variables are interpolated by Lagrange polynomials. The numerical results are compared and verified with other formulations found in literature. Parametric studies are also carried out for buckling behavior due to different slenderness ratios, power-law indices and boundary conditions. Applications of the model to functionally graded materials show the validity of the present approach.Type
info:eu-repo/semantics/articleRights
info:eu-repo/semantics/embargoedAccessLanguage
engDescription
El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.ae974a485f413a2113503eed53cd6c53
10.1109/CONIITI51147.2020.9240368
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