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EnglishIn this paper, we consider a one-dimensional Mindlin model describing linear elastic behaviour of isotropic materials with microstructural effects. After introducing the kinetic and the potential energy, we derive a system of equations of motion by means of the Euler–Lagrange equations. A class of exact solutions is obtained. They have a wave behaviour due to a good property of the potential energy. We transform the set of hyperbolic partial differential equations in a particular form, which makes clear how to impose boundary conditions correctly. Next numerical solutions are obtained by using a weighted essentially non-oscillatory finite difference scheme coupled by a total variation diminishing Runge–Kutta method. A comparison between exact and numerical solutions shows the robustness and the accuracy of the numerical scheme. A numerical example of solutions for an inhomogeneous material is also shown.
| Titolo: | Numerical solutions to a microcontinuum model using WENO schemes | |
| Autori interni: | ||
| Data di pubblicazione: | 2019 | |
| Rivista: | ||
| Handle: | http://hdl.handle.net/20.500.11769/367362 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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