Multi-scale nonlinear modelling of sandwich structures using the Arlequin method

摘要: Abstract The paper presents a combination of the Arlequin Method (AM) and Asymptotic Numerical (ANM) for studying nonlinear problems related to mechanical behavior sandwich composite structures. is multi-scale method in which different models are crossed glued each other. ANM an alternative falls into category numerical perturbation techniques. By introducing power series expansions equilibrium equation, problem transformed sequence linear solved by standard finite element method. Compared other classical solvers (Newton–Raphson Method, Modified Newton–Raphson Method), offers considerable interest computation time reliability. To validate this method, AM combined with simulate local damage 2D–2D 2D–2D-coupled beams. simulation results compared reference solution calculated from 2D beam without any coupling. In case beam, shows good agreement both deformation at loaded point. However, 2D–1D-coupled deviate due constant thickness 1D zig-zag used model zone beam.