Establishment and validation of improved six-year-old pediatric thorax human model

VernacularTitle:6岁儿童胸部改进人体模型的建立与验证
Author: Long YING ¹ ; Ru-Hai GE ; Xue-Rong ZHANG ; Jin-Bao ZHOU
Author Information

1. 江苏大学汽车与交通工程学院
Keywords: Pediatric thorax; Reverse modeling; Finite element analysis; Dynamics; Biomechanics
From: Journal of Medical Biomechanics 2017;32(2):103-108
CountryChina
Language:Chinese
Abstract: Objective To improve the biological fidelity of the thorax flexible body in the original MADYMO child human model,so as to further study pediatric thorax injuries of child occupant.Methods The finite element model of six-year-old pediatric thorax was built by the method of reverse modeling based on CT images.By replacing the thorax model with flexible body in MADYMO six-year-old human model,an improved human model containing biomechanical thorax model was developed.The model was verified by joint validation of two tests,including Irwin and Mertz's method of scaling channel reported in Kroell's adult chest impact experiment and Ouyang's thoracic impact test on pediatric cadavers.Results The response of this established thorax model was in good agreement with scaling channel method and cadaver test data,and the thorax model was much more accurate than the original flexible body model.The resilience of simulation model was consistent with cadaver test.Conclusions The validity of the model is verified,and the results can be further used for occupant injury analysis in vehicle frontal crash.