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A posteriori error estimates for beams with inexact flexural stiffness representation

Torii André J., Gracite Paula M.A., Miguel Leandro F.F., Lopez Rafael H.

Journal of Applied Mathematics and Computational Mechanics

2023

Vol. 22, nr 2

62--74

In this work, we present a posteriori error estimates for the Euler-Bernoulli beam theory with inexact flexural stiffness representation. This is an important subject in practice because beams with non-uniform flexural stiffness are frequently modeled using a mesh of elements with constant stiffness. The error estimates obtained in this work are validated by means of two numerical examples. The estimates presented here can be employed for adaptive mesh refinement.