Numerical study of a welded plate instability using the subloading surface model

摘要: Abstract Instability in structural components has been widely studied to understand the elastic and inelastic behaviors of materials because risks associated with sudden failure under equilibrium conditions. However, most studies have performed for various monotonic load configurations without considering instability as a final step process induced by irreversible deformations that can arise even small vibrations. This work investigates problems may be caused plastic strain during cyclic loading. type is difficult study conventional plasticity models they fail predicting deformation changes stress state within domain. In contrast, unconventional theories abolish distinction between domains, allowing material exhibit smooth elastoplastic response every change