A study of the mechanical response of polycrystalline ice subjected to dynamic tension loading using the spalling test technique

Dominique Saletti (1, 2) , David Georges (1, 2, 3) , Victor Gouy (3) , Maurine Montagnat (3) , Pascal Forquin (1, 2)

1 3SR - Laboratoire sols, solides, structures - risques [Grenoble]
2 RV - Risques, Vulnérabilité des structures et comportement mécanique des matériaux
3 IGE - Institut des Géosciences de l’Environnement

Highlights • The spalling test technique is conducted to study the dynamic tensile strength of polycrystalline ice. • The results show the sensitivity of the tensile strength to the applied strain rate (from 41 s − 1 to 271 s − 1). • Three indicators are proposed to assess the results based on an optical analysis, a measurement of the wave speed and an analysis of the transmitted pulse. • An increase of the cracking density with the strain rate is observed.

Mots clés: strain-rate sensitivity; fracture; spalling test; dynamic tensile strength; ice

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

Dominique Saletti, David Georges, Victor Gouy, Maurine Montagnat, Pascal Forquin. A study of the mechanical response of polycrystalline ice subjected to dynamic tension loading using the spalling test technique. International Journal of Impact Engineering, 2019, pp.103315. ⟨10.1016/j.ijimpeng.2019.103315⟩. ⟨hal-02151495⟩