The majority of bone fractures are results from impulse loads. Impulse fractures in low-quality porous (osteoporotic) bone are a major cause of long-term pain and physical disability, and have an enormous impact on the individual, society and health care social systems. However, the understanding of the fundamental aspects in rapid bone fractures is still in its infancy, mainly because such fractures depend on complicated interplays between load impulses, stress waves and microstructural properties.
The aim of this project is to develop and apply novel multiscale dynamical phase field models to analyze the fundamental phenomena involved in rapid bone deformation and fracture. The high-resolution models, discretized using high-resolution X-ray computed tomography scans of real human bones, are able to capture the dynamics on the microscale and are supported by high-speed camera experiments on wave motions in impulse-loaded bones. A long term goal is to improve fracture treatments of low-quality porous bone by optimizing bone repairing implant materials to be in mechanical harmony with the surrounding bone.