Duncan Chang hyperbolic model used widely in FEM analysis of the interaction between tools and soil was modified by taking account of the influence of load rate.

• 并利用所测的曲线对准静态情况下被广泛用于土壤与机具相互作用的有限元分析的Duncan－Chang双曲线模型进行修正，得出了考虑加载速率影响的修正Duncan－Chang模型