摘要
利用日本产ＤＴＣ－３０６土壤动态三轴仪对东北地区黑壤土在不同围压和加载速率情况下，测得了一组主应力差σ１－σ３与轴向应变εａ的关系曲线。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。
The relations between stress deviation ( σ 1-σ 3 ) and axle strain ( ε a ) about black soil of northeast district were measured by using dynamic three axle implement of soil (model DTC 306) under the conditions of different load rates and circumstance stresses. 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.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
1997年第2期6-10,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
中国博士后基金项目
