Browsing by Author "Ciceri, Fabio"

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    Physical, Mechanical and Elastic Properties of Chondrite Lithologies
    (2023-08-28) Ciceri, Fabio; Hildebrand, Alan Russell; Clarkson, Christopher; Tutolo, Michael Benjamin; Wong, Ron Chik-Kwong; Britt, Daniel T.
    This project measured the physical, mechanical, and elastic properties of a range of chondrite lithologies, a domain that was inadequately explored. The properties measured are porosity, bulk and grain density, seismic velocity (P and S waves), Unconfined Compressive Strength, Direct Shear Strength, Hardness (HLD)/Coefficient of Restitution, dynamic elastic moduli (Young’s modulus, Shear modulus, Bulk modulus, Poisson’s ratio), Static Young’s Modulus, Proportional Limit, and Elemental Compositions. The complexity of measuring these properties accurately in small samples (ranging from 2.5 mm to 2 cm) is underscored, particularly due to the inherent weakness of some lithologies. Innovative adaptations of established methodologies, as elaborated in the Methods chapter, have been implemented to overcome these challenges and conform to ASTM International Standards. Concurrently, this study seeks to encourage the adoption of measuring standards within the planetary science community, fostering improved data cross-referencing and contextual interpretation of future asteroid samples. This study also examined correlations among meteorite properties, with the potential to predict properties that would normally require destructive testing. This study provides a database, contributing to an enhanced grasp of the deformational characteristics exhibited by meteorites and asteroids. This knowledge advancement facilitates modeling of asteroid geology and internal structures.