Browsing by Subject "Numerical implementation"

Finite element analysis of damage in pipeline bends

Swart, A. E.; Karamanos, S. A.; Scarpas, A.; Blaauwendraad, J. (2010)

The present paper describes a numerical formulation for the analysis of damage in steel pipeline bends. In particular, the numerical implementation of Gurson plasticity model is described in the framework of a special ...

Non-associative J2 plasticity model for finite element buckling analysis of shells in the inelastic range

Pappa P., Karamanos S.A. (2016)

The development and numerical implementation of a special-purpose constitutive model is described for investigating the structural stability of cylindrical metal shells under axial compression and bending, which buckle in ...

A non-local plasticity model for porous metals with deformation-induced anisotropy: Mathematical and computational issues

Aravas N., Papadioti I. (2021)

A non-local (gradient) plasticity model for porous metals that accounts for deformation-induced anisotropy is presented. The model is based on the work of Ponte Castañeda and co-workers on porous materials containing ...

Numerical implementation of bounding-surface model for simulating cyclic inelastic response of metal piping components

Chatzopoulou G., Karamanos S.A. (2021)

The present paper describes the numerical implementation of the bounding-surface cyclic-plasticity model in a finite element environment, suitable for simulating the structural behavior of metal components subjected to ...

Numerical implementation of J 2 non-associative flow plasticity models

Pappa, P.; Karamanos, S. A. (2009)

The present paper describes a J2 non-associative plasticity model, which takes into account the "corner-like" effects at the loading point on the yield surface, and is suitable for shell buckling calculations. The plastic ...