摘要
粘弹性材料进行有限元分析时,须有其粘弹性物理模型特征参数。采用数值拟合法,对粘弹材料肋软骨,推导了模型简化下归一化实验曲线与广义Maxwell模型的关系,实现了实验曲线与广义Maxwell模型的拟合,得到了肋软骨材料用于粘弹性有限元分析的Maxwell模型参数。仿真验证表明曲线的拟合度很高。
The characteristic parameters of viscoelastic physical model must be provided for the finite element analysis of viscoelastic materials.A numerical fitting method was used to derive the relationship of the generalized Maxwell model and the normalized experimental curve in terms of a model simplified for the viscoelastic material-costal cartilage,realize the fitting of experimental curve with the generalized Maxwell model,and receive the Maxwell model parameters of costal cartilage for viscoelastic finite element analysis.The simulation shows that the curve fitting degree is high.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2010年第10期1409-1412,共4页
Acta Armamentarii
基金
西北工业大学科技创新基金项目(2007KJ01025)
