Sfoglia per Soggetto "Constitutive models"

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 ...

Nonlinear radial oscillations of encapsulated microbubbles subject to ultrasound: The effect of membrane constitutive law

Tsiglifis, K.; Pelekasis, N. A. (2008)

The nonlinear radial oscillations of bubbles that are encapsulated in an elastic shell are investigated numerically subject to three different constitutive laws describing the viscoelastic properties of the shell: the ...

Numerical analysis of the seismic response of sand passively stabilized against liquefaction

Andrianopoulos K.I., Agapoulaki G.I., Papadimitriou A.G. (2015)

Passive stabilization is a new technique for mitigating the risk of seismic liquefaction in the non-cohesive foundation soil of existing structures. It consists of the low pressure injection (in the soil pores) of colloidal ...

Phenomenological simulation of the seismic response of ground stabilized with colloidal silica

Papadimitriou, A. G.; Agapoulaki, G. I.; Andrianopoulos, K. I. (2014)

Passive stabilization is a novel technique for mitigating the risk of seismic liquefaction in the non-cohesive foundation soil of existing structures. It entails the low-gradient injection of colloidal silica in the soil ...

SANICLAY: A new simple anisotropic clay plasticity model

Papadimitriou, A. G.; Dafalias, Y. F.; Manzari, M. T. (2007)

SANICLAY is a new simple anisotropic clay plasticity model that builds on a modification of an earlier model with an associated flow rule, in order to include simulations of softening response under undrained compression ...

Simulation of piping ratcheting experiments using advanced plane-stress cyclic elastoplasticity models

Chatziioannou K., Huang Y., Karamanos S.A. (2019)

Industrial steel piping components are often subjected to severe cyclic loading conditions which introduce large inelastic strains and can lead to low-cycle fatigue. Modeling of their structural response requires the ...