Biomechanical Modeling And Simulation Of Human Skeletal Muscle

An in-depth study of the structure and function of different scales of human skeletal muscle is a challenging task.And in the last century,it has been recognized that the generation of skeletal muscle has complex processes,such as the process of generating electrical signals through nerve stimulation,the process of action potential conduction,and the process of generating kinetics of sarcomere,etc.However,researchers are far from fully understanding the mutual coupling of these processes.Skeletal muscle is composed of many muscle fibers,and the muscle fibers have the characteristics of generating the main kinetics and connecting and interacting with the surrounding tissues.Therefore,the combination of the physiological and mechanical properties of muscle fibers with the mechanical properties of the entire skeletal muscle is important for understanding skeletal muscle related diseases.Through the multi-scale study of skeletal muscle,an accurate skeletal muscle biomechanical model is established,which not only helps researchers understand the physiological phenomena related to exercise,but also can improve biomedical technology and make meaningful guidance for sports diseases.In this dissertation,the semi-muscle section model and the action potential conduction model were established by studying the multi-scale structure and function from semi-muscle section to muscle fiber and muscle fiber to skeletal muscle tissue.By introducing the human skeletal muscle CT image into Mimics,the human skeletal muscle tissue was reconstructed in three dimensions and the reconstruction model was optimized.A high quality skeletal muscle 3D solid model was obtained and imported into Abaqus software for finite element analysis.Simulation analysis.By analyzing the characteristics of skeletal muscle tissue superelasticity and incompressible biomechanics,the biomechanical superelastic model of human skeletal muscle tissue was established,including skeletal muscledynamic behavior model and main dynamic behavior model,and the human skeletal muscle tangent elastic matrix was calculated.Finally,the established human skeletal muscle biomechanical model was stretched,compressed and simulated under different shrinkage speed conditions,and compared with the simulation results of human skeletal muscle biomechanical model in the literature,the skeletal muscle of this dissertation was obtained.The biomechanical model is closer to the biomechanical properties of real human skeletal muscles,which verifies the validity and accuracy of the human skeletal muscle biomechanical model.