Simplified stress analysis of multilayered bonded structure under 1D-bar kinematics

Vincent Torrelli (1) , Eric Paroissien (1)

1 ICA - Institut Clément Ader

Many current materials and structural systems are layered. The structural performances of these multilayered systems are dependent on interfaces, the presence of which is inherent to them. A methodology for the simplified stress analysis of such structures under 1D-bar kinematics is presented. The macro-element technique is used to solve the set of ordinary differential equations involved. A dedicated macro-element is formulated through the approximation of displacements fields by Taylor expansion power series. The predictions of the simplified stress analysis are in close agreements with those obtained by FE analyses. Finally, the influence of adhesive thickness and of the overlap length on the adhesive stress peaks is presented.

Mots clés: Single-lap bonded joint; Multilayered; Finite element; Macro-element; Taylor expansion power series

Domaines: Matériaux et structures en mécanique [physics.class-ph]

Vincent Torrelli, Eric Paroissien. Simplified stress analysis of multilayered bonded structure under 1D-bar kinematics. Composite Structures, 2020, 251, pp.112641-112657. ⟨10.1016/j.compstruct.2020.112641⟩. ⟨hal-02954703⟩