The sequentially linear analysis is a robust alternative to nonlinear ﬁnite element analysis of structures when bifurcation, snap-back or divergence problems arise. The load–displacement response is captured by a series of linear analyses as a sequence of ‘events’. Every ‘event’ is a scaled critical state corresponding to the reaching of some peak of some saw-tooth for some softening element. Now, the approach is extended with a rippled saw-tooth curve which applies to any stress–strain diagram, including compression nonlinearity and yielding of reinforcement. Several RC structural examples demonstrate that both sharp snap-backs as well as ductile failures can be handled correctly.
Robust modeling of RC structures with an “event-by-event” strategy / Rots J.G.; Belletti B.; Invernizzi S.. - In: ENGINEERING FRACTURE MECHANICS. - ISSN 0013-7944. - STAMPA. - 75:3-4(2008), pp. 590-614.
|Titolo:||Robust modeling of RC structures with an “event-by-event” strategy|
|Data di pubblicazione:||2008|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.engfracmech.2007.03.027|
|Appare nelle tipologie:||1.1 Articolo in rivista|