From Butter to Bone Tissues: Assessing the Fracture Resistance via Scratch Testing

From Butter to Bone Tissues: Assessing the Fracture Resistance via Scratch Testing

Akono, Ange-Therese

Abstract:

This investigation aims at assessing the fracture resistance of cortical bone via scratch tests. To this end, a macroscopic scratch testing equipment is built in house and used to test bovine humerus specimens soaked in Hanks Salt Balanced Solution at room temperature, considering both the transverse and longitudinal orientations. Fracture Mechanics yields the fracture toughness from the scratch force measurements for different blade widths and penetration depths, whereas the crack propagation mechanisms are investigated using advanced imaging techniques. Given the scalability of scratch tests, this study paves the way towards a multi-scale mechanistic understanding of bone toughness, inspiring the design of biomimetic materials and opening new venues for innovative therapeutic treatments.

This investigation aims at assessing the fracture resistance of cortical bone via scratch tests. To this end, a macroscopic scratch testing equipment is built in house and used to test bovine humerus specimens soaked in Hanks Salt Balanced Solution at room temperature, considering both the transverse and longitudinal orientations. Fracture Mechanics yields the fracture toughness from the scratch force measurements for different blade widths and penetration depths, whereas the crack propagation mechanisms are investigated using advanced imaging techniques. Given the scalability of scratch tests, this study paves the way towards a multi-scale mechanistic understanding of bone toughness, inspiring the design of biomimetic materials and opening new venues for innovative therapeutic treatments.

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Como citar:

Akono, Ange-Therese; "From Butter to Bone Tissues: Assessing the Fracture Resistance via Scratch Testing", p-96-96. In: Proceedings of the 13th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials [=Blucher Material Science Proceedings, v.1, n.1]. São Paulo: Blucher, 2014.
ISSN 23589337, DOI