TY - GEN
T1 - Measurement of damage localisation in rocks using ultrasonic velocity measurements / tomography
AU - Hall, Stephen Alexander
AU - Charalampidou, Elli-Maria Christodoulos
AU - Nguyen, Tuong-Lam
AU - Tudisco, Erika
AU - Viggiani, Giaocchino
AU - Roux, Philippe
AU - Stanchits, Sergei
AU - Vacher, Pierre
AU - Lewis, Margaret Helen
PY - 2012
Y1 - 2012
N2 - In this paper we present two examples of the use of ultrasonic measurements for the assessment of damage localisation in rocks deformed under laboratory conditions: (1) using multiple point-to-point velocity measurements during a loading experiment on a soft rock with simultaneous full-field strain measurement, which permits a link to be made between velocity changes and deformation; (2) using ultrasonic tomography to obtain full-field measures of velocity in specimens of a Vosges sandstone with localised shear-band features, in which the strain localisation is found to be coincident with localised damage (velocity reduction).
AB - In this paper we present two examples of the use of ultrasonic measurements for the assessment of damage localisation in rocks deformed under laboratory conditions: (1) using multiple point-to-point velocity measurements during a loading experiment on a soft rock with simultaneous full-field strain measurement, which permits a link to be made between velocity changes and deformation; (2) using ultrasonic tomography to obtain full-field measures of velocity in specimens of a Vosges sandstone with localised shear-band features, in which the strain localisation is found to be coincident with localised damage (velocity reduction).
M3 - Conference contribution
BT - XXIII International conference on theoretical and applied mechanics (ICTAM)
ER -