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Localized fatigue damage of Carrara marble
Uniaxial-compression tests at low-cycle fatigue regime were performed on white Carrara marble cylindrical specimens fitted with strain-gauge rosettes. Despite an almost linear elastic response, rock damage is evidenced by a small but progressive and effective translation of the stress-strain graphs, signifying that permanent deformation, rather than appreciable decay in the elastic moduli, is an appropriate correlate of damage. Marked differences have been noticed between the behavior of those specimens with their axis orthogonal to the marble rift plane and those with their axis parallel to this plane. In the first, the most evident sign of failure mechanisms was shear-like deformations, while in the second, it was a marked increase in volume due to microcracking.
Localized fatigue damage of Carrara marble
Uniaxial-compression tests at low-cycle fatigue regime were performed on white Carrara marble cylindrical specimens fitted with strain-gauge rosettes. Despite an almost linear elastic response, rock damage is evidenced by a small but progressive and effective translation of the stress-strain graphs, signifying that permanent deformation, rather than appreciable decay in the elastic moduli, is an appropriate correlate of damage. Marked differences have been noticed between the behavior of those specimens with their axis orthogonal to the marble rift plane and those with their axis parallel to this plane. In the first, the most evident sign of failure mechanisms was shear-like deformations, while in the second, it was a marked increase in volume due to microcracking.
Localized fatigue damage of Carrara marble
Royer-Carfagni, G. (author) / Salvatore, W. (author)
1998
12 Seiten, 4 Quellen
Conference paper
English
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