The inverse analysis method for identifying a nonlinear hardening function,which governs a plastic yielding of soil and rock materials in the framework of elastoplastic theory is presented. A concept of two stage finite element based on spatial discretization of computational space and hardening function space is introduced. The proposed inverse analysis can be classified as the output least squares method. The Levenberg Marquard method is utilized for the minimization of the goal function at hand. A numerical example is given for the hardening function identification with the modified Drucker Prager yield criterion in the case of a simple compression triaxial test.
Authors
- prof. dr hab. inż. Zbigniew Sikora link open in new tab ,
- Yasuaki Ichikawa,
- Piotr Dziadziuszko
Additional information
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Language
- angielski
- Publication year
- 2003
