山西农业大学学报（自然科学版）2017，Vol.37Issue(11)：798-804,7.
油松根系力学性质有限元算法
The finite element method in Pinus Tabulaeformis roots
摘要
Abstract
[Objective]In order to study the mechanical properties of Pinus tabulaeformis root,[Methods]simulating the constitutive relation of pinus tabulaeformis root with the linear hardening plasticity model,and write a calculation pro-gram with finite elementmethod of broken line theory in plastic mechanics.To compute the strain of root,through the model of linear hardening and hyperbola,respectively,and compared it with the measured value from the stress-strain curve.[Results]It proved that the linear hardening model was not only simple,but also had a smaller error,which was about 1 to 2 orders of magnitude less than that of the hyperbolic model.[Conclusion]The finite elementmethod of bro-ken line theory in plastic mechanics was simple and easy to write a calculation program,which could compute both the model of linear hardening and the model of hyperbola,in which case,it had great advantage over the classical one.关键词
本构关系/有限元方法/油松根系/拉伸应力Key words
Constitutive relation/Finite element method/Pinus tabulaeformis root system/Tensile stress分类
农业科技引用本文复制引用
沙斌,梁文俊..油松根系力学性质有限元算法[J].山西农业大学学报（自然科学版）,2017,37(11):798-804,7.基金项目
国家自然基金(31500523) （31500523）
山西农业大学引进人才科研启动资金(2014YJ19) （2014YJ19）
