Identification of fractures in cancellous bone using µFE models and Heaviside-Digital volume correlation

Prasanth Bokam (1) , Laetitia Caille (1) , Arnaud Germaneau (1) , Philippe Rigoard (1) , Tanguy Vendeuvre (1) , Valery Valle (1)

1 PEM - Photomécanique et analyse expérimentale en mécanique des solides [Institut Pprime]

The identifications of fractures in cancellous bone using FE models became popular in the recent years. The most common FE methods are continuum level FE (Verhulp et al. 2006) models and high-resolution (HR-µCT) FE models (Hambli 2013). Considering the limitation in the above models, Pahr’s team has developed an enhanced FE model to improve the strength and fracture predictions in human femurs (whole bones) (Pahr and Zysset 2009; Luisier et al. 2014). In context to above, in order to study and predict the fracture in the cancellous bone at a micro-scale, it requires µFE models (that incorporate the full trabecular architecture and anisotropy). This indeed increases the computation cost and requires HR-µCT images. In addition, the results obtained from FE models are different from the experimental results.

Mots clés: Cancellous bone; strain; fractures; µ FE models; Digital Volume Correlation (H-DVC)

Domaines: Mécanique des fluides [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]; Acoustique [physics.class-ph]; Automatique / Robotique; Electromagnétisme; Milieux fluides et réactifs; Energie électrique; Thermique [physics.class-ph]; Vibrations [physics.class-ph]; Physique mathématique [math-ph]; Physique Quantique [quant-ph]; Acoustique [physics.class-ph]; Biomécanique [physics.med-ph]; Matériaux; Polymères

Prasanth Bokam, Laetitia Caille, Arnaud Germaneau, Philippe Rigoard, Tanguy Vendeuvre, et al.. Identification of fractures in cancellous bone using µFE models and Heaviside-Digital volume correlation. Computer Methods in Biomechanics and Biomedical Engineering, 2020, 23 (sup1), pp.S40-S42. ⟨10.1080/10255842.2020.1811507⟩. ⟨hal-03709892⟩