Three-Dimensional Finite Element Analysis of the Tibia Stresses during Jumping Momnet

In this study, the kinematic and dynamic parameters were obtained by using the photogrammetric techniques and three-dimensional force platform in jumping moment for foot, the force and moment acted on the tibia were calculated with inverse dynamics method, the three-dimensional finite element model of tibia that considers material property and geometric behavior was established by CT datum, and stress and displacement of tibia were simulated, the results can provide a theoretical basis for sports training during the sports injury prevention and treatment. The results showed that: the stress acted on the tibia supported is greater, maximum stress value is 46.88MPa, which concentrated in the middle of the tibia, and front tibial stress value is higher than the rear, front edge of the tibia situated in the bend and compression at the moment. If the horizontal braking force is too large, the tibia can situate alternating stress state, which can lead to fatigue damage for long time. The three-dimensional finite element model simulated the structure and property of tibia, the model is very accurate and credible, which can be output by different format, as STL and IGES etc, which realized the data sharing.