Combining peridynamic and finite element simulations to capture the corrosion of degradable bone implants and to predict their residual strength

• Published in: International journal of mechanical sciences Vol. 220; p. 107143
• Main Authors: Hermann, Alexander, Shojaei, Arman, Steglich, Dirk, Höche, Daniel, Zeller-Plumhoff, Berit, Cyron, Christian J.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.04.2022
• Subjects: Mass loss; Mg-Gd alloys; Moving interface; Multi-grid; Non-local diffusion; Strength reduction; Strength reduction; Moving interface; Mass loss; Non-local diffusion; Multi-grid; Mg-Gd alloys

This paper proposes a computational framework to describe the biodegradation of magnesium (Mg)-based bone implants. It is based on a sequential combination of two models: an electrochemical corrosion model to compute the mass loss of the implant over several weeks combined with a mechanical model to...