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. Le-second-disque-est-non-axisymétrique and . Et-percé-de-quatre-trous-périphériques, La localisation en bande est observée pour détecter uné eventuelle brisure de symétrie comme sur leséprouvettesleséprouvettes axisymétriques du chapitre VII. Les principaux résultats de ce chapitre sont : (a) La vitesse limite des disques en rotation n'est pas abaissé demanì ere significative par le vieillissement dynamique. (b) Les termes d'inertie (accélération) ne sont pas amplifiés par l'effet PLC dans les mêmes disques; la vitesse limite n'est pas modifiée, c) La localisation en bandes se fait autour des zones trouées du second disque. (d) Nous n'avons pas observé de brisure de symétrie. Conclusions ? Prospects References

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