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Development and Validation of a Finite Element Model of Human Lower Extremity for Dynamics Analysis

Author: FangHaiFeng
Tutor: YangJiKuang
School: Hunan University
Course: Vehicle Engineering
Keywords: Pedestrian collision accident Biomechanical response Damage Mechanism Human Lower Extremity Finite element model
CLC: U491.3
Type: Master's thesis
Year: 2004
Downloads: 369
Quote: 7
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Abstract


In the car - pedestrian collision accident , human lower limbs often hit and injured by the front of the vehicle structure . For the study of the human lower limb biomechanical response and injury mechanism pedestrian collision accident , established a three - dimensional finite element model of a human lower limb . Model to establish the structure of human anatomy , composed of bone and soft tissue system . Skeletal system , including the hip , femur , tibia , fibula , foot bones and patella . Soft tissue including ligament , tendon and joint capsule . The geometry of the model is based on the original data of the company's Viewpoint . The mass distribution of the organizations and material characterization model is obtained by the literature . The model consists of shell elements and linear spring - damper unit . The entire model 13861 nodes and 18,966 units . Experimental conditions to determine the model boundary and load conditions according to the auto pedestrian side collision . The model is based on the finite element software LS-DYNA3D platform . Tibia model tibia three-point bending stress analysis of experimental verification . The verification of the validity of the entire lower extremity model shear bending crash test data . The dynamic response of the human finite element model of the lower extremity , under the loading conditions and stress distribution analysis of the relationship between the collision position and other parameters with the risk of lower extremity injury . The results show that , due to lower bumper height , reducing pedestrian lower limb injury risk . The finite element model of the human lower extremity has high biological fidelity by stress analysis to study the response of the human lower limb biomechanics and damage mechanism . The establishment of the model will play a role in domestic pedestrian lower limb injury research and injury protection technology developed .

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CLC: > Transportation > Road transport > Technical management of traffic engineering and road transport > Traffic engineering and traffic management > Traffic Accidents
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