RT info:eu-repo/semantics/article
T1 A nonlinear model for the elastoplastic analysis of 2D frames accounting for damage
A1 Lorenzana Ibán, Antolín
A1 López Reyes, Pablo
A1 Chica Arrieta, Edwin Lenin
A1 García Terán, José María
A1 Cacho Pérez, Mariano
K1 plastic methods, structural analysis, material nonlinearities, elastoplastic stiffness matrix, Bonora damage model
AB A simple and efficient procedure for non-linear analysis of frames is presen-ted, under the hypothesis that the non-linear effects, if appear, are concen-trated in the beam-ends.We consider a damage model based on ContinuumDamage Mechanics, but affecting the cross-section as a whole. The elasto-plastic behaviour is included formulating the tangent elastoplastic stiffnessmatrix in such a way that the yield function, in terms of internal forces(axial, shear and bending moment), is affected by the damage in each plas-tic cross-section. After the verification of the model, an example of applica-tion is solved for different assumptions on the yield function (depending onthe internal forces considered) with the damage being taken into account ordisregarded. The differences on the collapse load, for each case, are shownand some conclusions obtained, among them that the method can evaluatein a more accurate way the load that causes the collapse of frames underincreasing loading, considering a fully plastic non-linear analysis.
YR 2011
FD 2011
LK https://uvadoc.uva.es/handle/10324/82105
UL https://uvadoc.uva.es/handle/10324/82105
LA eng
NO JOURNAL OF THEORETICAL AND APPLIED MECHANICS 49, 2, pp. 515-529
NO Producción Científica
DS UVaDOC
RD 24-ene-2026