中国人颅骨粘弹性本构方程——压缩

A Viscoelastic Constitutive Equation of Chinese Skull on the Compression

本文在中国人颅骨压缩松驰、蠕变试验的基础上,利用线性粘弹性理论,给出了人颅骨压缩时准静态下的松驰模量和蠕变柔量以及 三参数固体模型下的本构关系。这对于人头部的力学模型的简化、头部损伤的理论分析与计算,以及制造头部试验模型和头部损伤试验研究等提供基础资料。

On the basis of the compressionrelaxation test and the compressioncreep test of the human skull thepaper used the linear viscoelastictheory and proposed the relaxationmodulus E(t)=5.02+0.67exp (t/34),creep compliance J(t)=0.1757+0. 02369[1-exp(t/38)] and the con-stitutive equation:σ(t =∫_o^tE(t-ξ)∈dξ,∈(t)=∫_o^t?(t-ξ)σdξ andσ+33.7σ=5.02∈+191.7∈ for the threecomponent model on the compression.This is the basic data for the theoryanalysis and calculation of the headinjury.