摘要
基于最小二乘支持向量机理论建立了岩土本构模型,并结合有限元理论分析了ABAQUS在求解非线性问题的基本原理和具体过程。利用ABAQUS中UMAT接口将最小二乘支持向量机岩土本构模型用于一隧道工程开挖实例分析,结果表明其最小二乘支持向量机本构模型用于有限元分析的可行性和优越性。
Based on least square support vector machine, the constitutive model was established and the basic principle and the specific process of ABAQUS in solving the non - linear problems were ana- lyzed by combining with finite element theory. An example of tunnel excavation was analyzed by using LSSVM constitutive model through the UMAT of ABAQUS. The results show that LSSVM - based con- stitutive model is feasible and has some advantages in element analysis.
出处
《河北工程大学学报（自然科学版）》
CAS
2013年第3期26-29,共4页
Journal of Hebei University of Engineering:Natural Science Edition
关键词
最小二乘支持向量机
岩土本构模型
ABAQUS
有限元分析
least square support vector machine （LSSVM）
geomaterial constitutive model
ABAQUS
element analysis
