Cosimulation-based biomechanics of the human body with hip prosthesis

This paper presents an application of cosimulation technology, which involves the interaction between two simulations working in sync: Multibody Dynamics (MBD) and Finite Element Method (FEM), applied to a biomechanics case study. Various approaches in the literature address the modeling and simulation of complex systems, including the interaction between various domains through a multiphysics approach. Specifically, this study focuses on the modeling and simulation of human walking with a hip prosthesis by using MBD-FEM cosimulation technology, offering insights for designing, analyzing, and studying human prostheses. Traditionally, hip prosthesis analysis and design focus on static loads only. This paper, however, explores the cosimulation to combine MBD of walking with FEM of the hip prosthesis, enabling an analysis of the dynamic loads acting within an interactive environment. The promising results highlight the great potential of this technology and underscore its importance for prosthesis designers to consider the multiphysical nature of the problem carefully, ensuring design decisions align with the complexities involved.