The behavior of statically-indeterminate structural members and frames with cracks present
Article dans une revue avec comité de lecture
Auteur
PARIS, Paul Croce 
PALIN-LUC, ThierryRésumé
Crack stability is discussed as affected by their presence in statically-indeterminate beams, frames, rings, etc. loaded into the plastic range. The stability of a crack in a section, which has become plastic, is analyzed with the remainder of the structure elastic and with subsequent additional plastic hinges occurring. The reduction of energy absorption characteristics for large deformations is also discussed. The methods of elastic–plastic tearing instability are incorporated to show that in many cases the fully plastic collapse mechanism must occur for complete failure.
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Article dans une revue avec comité de lectureRANC, Nicolas; PALIN-LUC, Thierry; ; SAINTIER, Nicolas (Elsevier, 2014)
Because of the reverse cyclic plastic zone at the crack tip, there is plastic dissipation in heat at the crack tip under cyclic loading. That creates a heterogeneous temperature field around the crack tip. A thermomechanical ...