$Unraveling the effect of collagen damage on bone fracture using in situ synchrotron microtomography with deep learning$

Engineering and Technology

Unraveling the effect of collagen damage on bone fracture using in situ synchrotron microtomography with deep learning

M. Sieverts, Y. Obata, et al.

This groundbreaking research, conducted by Michael Sieverts and colleagues, reveals how nanoscale collagen damage critically impacts bone fracture toughness. Utilizing advanced techniques like synchrotron radiation micro-computed tomography and deep learning, the study uncovers the mechanisms by which collagen damage influences crack growth and resistance in bone.

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Abstract

This study investigates the impact of nanoscale collagen damage on bone fracture toughness using a bovine heat-treatment model. An in situ toughness testing technique with synchrotron radiation micro-computed tomography (SRµCT) and deep learning is employed to analyze microscale crack growth in 3D. Results show that collagen damage significantly reduces macroscale toughness and post-yield properties, primarily by reducing crack deflection, a key microscale fracture resistance mechanism.

Publisher

Communications Materials

Published On

Oct 21, 2022

Authors

Michael Sieverts, Yoshihiro Obata, James L. Rosenberg, William Woolley, Dilworth Y. Parkinson, Harold S. Barnard, Daniël M. Pelt, Claire Acevedo

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