MATERIAL BEHAVIOR MODELING BASED ON AN EXTENDED SUPPORT VECTOR REGRESSION

摘要

The modeling technology of an extended support vector regression is developed to model complex stress/strain behavior of materials. The constitutive information that is generally implicitly contained in the results of the experiments,i.e.,the relationships between stresses and strains,can be captured by training a support vector regression model within a unified architecture from experimental data. Such a strategy can be employed to model the behavior of modern,complex materials such as composites. And the proposed constitutive models fabricated on the architectures of the support vector regression can be easily determined. The complex behaviors of concrete in the state of plane stress under compressive uniaxial cycle loading are modeled with an extended support regression or multi-output support regression. The excellent results show that the support vector regression provides another effective approach for material modeling.