Abstract: A nonlinear beam finite-element model is developed to account for distributed plasticity, complex degradation phenomena, axial–moment–shear interactions, and geometric nonlinearity. The formulation is derived based on ...

Abstract: This work presents an efficient online system identification approach by integrating a reduced sigma points–based filter with a high-fidelity mechanics-based state-space hysteretic finite-element modeling framework. The ...

Abstract: A multiaxial degrading hysteretic model is developed, enabling consistent multiaxial yield/capacity surface evolution with degradations, and is appropriately incorporated in a finite-element framework using hysteretic ...