Effective behavior of thermo-elastic tubes with wavy layers

Dimitrios Tsalis (1) , Georges Chatzigeorgiou (2) , Nicolas Charalambakis (1)

1 Aristotle University of Thessaloniki
2 LEM3 - Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux

In the present article, the homogenization of a composite star-shaped tube with numerous thin, periodic, elastic wavy layers, is presented. The composite exhibits a multiscale periodicity allowing for a multistep asymptotic homogenization scheme starting from the finest scale. The scheme gives the complete effective thermoelastic behavior of the composite. By a numerical example of a two-phase composite with sinusoidal wavy walls, whose effective behavior is an orthotropic material, the above method is illustrated.

Mots clés: Multi-scale shell; Wavy walls; Periodic homogenization

Domaines: Matériaux et structures en mécanique [physics.class-ph]; Mécanique des matériaux [physics.class-ph]; Mécanique des solides [physics.class-ph]

Dimitrios Tsalis, Georges Chatzigeorgiou, Nicolas Charalambakis. Effective behavior of thermo-elastic tubes with wavy layers. Composites Part B: Engineering, 2016, 99, pp.173-187. ⟨10.1016/j.compositesb.2016.05.043⟩. ⟨hal-01364573⟩