Endochronic Theory and Non-Llinear Stochastic Dynamics of 3-D Framesby Fabio Casciati, Univ of Pavia, Italy,
Lucia Faravelli, Univ of Pavia, Italy,
Document Type: Proceeding Paper
Part of: Probabilistic Methods in Civil Engineering
Analytical continuous expressions of the material constitutive law are required by equivalent linearization techniques in nonlinear stochastic dynamics. Extensions to study 3D frames, as well as bi- or three-axial stress states, is straightforward once the multiaxial stress-strain relationship under cyclic non-proportional loading is provided in an analytical form. The latter task is investigated from both the endochronic and the classical plasticity point of view.
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