Finite Element model of an elbow under load, muscle effort analysis when modeled using 1D rod element

Abstract

Isometric contractions on muscles have been analyzed several times applying Finite Elements Model analysis. Most of these analysis have used 3D elements (hexahedral or tetrahedral) to mesh the geometry of the muscle. This study is one step ahead on the seek for a simplified modeling technique for these muscles. Previous studies on the same topic have been done and the results show that is possible simplify a muscle using a 1D element, rod type, for muscle modeling. The final aim is obtaining a methodology in which we can predict the muscle behavior under load, and during joint movement, so we can study fatigue effects, maximum effort obtained, improvements in movements in the joint in order to minimize effort on muscles, and many others. Once we can predict the muscle behavior in movement several applications can be developed. This study uses the power of existing CAD modeling and finite elements analysis tools, plus techniques for reconstruction human joints based on NMR images.