Bone Fracture: Parallels to Polymer Fatigue

Summary Based on electron microscopic investigations, initial stages of microcrack formation and growth in bone are described as craze‐like phenomena. The comparison of micro‐ and nanoscopic processes of deformation and fracture induced under different experimental conditions give rise to the conclu...

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Bibliographic Details
Published in:Macromolecular symposia. 2016-08, Vol.366 (1), p.52-59
Main Authors: Klehm, Jessica, Henning, Sven, Adhikari, Rameshwar, Brandt, Jörg
Format: Article
Language:English
Subjects:
Analogies
bone fracture
Bones
Collagens
Crack propagation
Crazing
electron microscopy
Formations
Fracture mechanics
Fractures
Microcracks
microdeformation
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Summary:Summary Based on electron microscopic investigations, initial stages of microcrack formation and growth in bone are described as craze‐like phenomena. The comparison of micro‐ and nanoscopic processes of deformation and fracture induced under different experimental conditions give rise to the conclusion that crazing is a fundamental micromechanical process during bone damage and fracture. Although there are striking similarities to crazes in polymeric materials, craze formation and growth in bone is strongly influenced by the morphology of the main building blocks of the bone matrix, i.e., the mineralized collagen fibrils, as well as by the significant anisotropy of bone architecture.
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.201650046