
Nous présentons les résultats expérimentaux concernant la rupture par cisaillement adiabatique en compression dynamique d'échantillons prédéformés en alliage de titane TA6V et en acier 35NCD16 de structure martensitique. La prédéformation faisant varier le coefficient de consolidation n, nous étudions l'évolution de la déformation à rupture en fonction du taux de prédéformation en comparant les valeurs expérimentales à celles obtenues par le modèle de Culver. On constate un bon accord qualitatif, mais les valeurs expérimentales montrent que d'autres paramètres que n doivent intervenir.
[PHYS.HIST] Physics [physics]/Physics archives
[PHYS.HIST] Physics [physics]/Physics archives
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