2020

Finite Element Modeling and Validation of a Human Foot through experimental studies

Schlagwörter

Zusammenfassung

The mechanical experimentation in human beings is practically very difficult due to various laws and procedures. The use of Finite Element (FE) model of the human parts has a significant effect in research. Foot, the most complex structure in human body consists of 26 bones and 33 joints. As reported in the existing literatures, several finite element foot models are developed by imposing simplifications on its anatomy by considering the ligaments as tension free link element, which has a significant variance compared to the experimental results. This paper attempts to develop and validate a realistic finite element model of a normal human foot with bones, muscles, tendons and ligaments mimicking the actual foot using Image Reconstruction Techniques (IRT). The finite element analysis on this model is performed to simulate the balanced standing condition by applying the necessary loading and boundary conditions. Under balanced standing condition, a maximum Von Mises stress of 0.139 MPa is observed in the heel region. For validating the results obtained from finite element analysis, the experimental studies with (i) Moticon insole and (ii) Noraxon’s FDM-T SciFit Treadmill is conducted, which provided a variation of 4.3 % and 0.7 % respectively with FE studies.

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