Finite element modeling of surface morphological instabilities of filmsubstrate systems

Fan Xu (1) , Michel Potier-Ferry (1) , Salim Belouettar (2) , Yao Koutsawa (3) , Pascal Ventura (1)

1 LEM3 - Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux
2 CRP Henri-Tudor - Centre de Recherche Public Henri-Tudor [Luxembourg]
3 LIST - Luxembourg Institute of Science and Technology

We propose a numerical framework to study surface wrinkling of stiff thin films on soft substrates: from 2D to 3D modeling, from classical to multi-scale perspective. The main objective is to apply advanced numerical methods (path-following techniques, bifurcation indicators, bridging techniques, multi-scale analyses, etc.) for multiple-bifurcation analyses of film-substrate buckling problems. Through incorporating these numerical methods with FEM, it can predict the occurrence and post-bifurcation evolution of wrinkling patterns in various boundary and loading conditions as well as complex geometries.

Mots clés: Wrinkling; Post-buckling; Bifurcation; Thin film; Path-following perturbation technique

Domaines: Mécanique [physics]

Fan Xu, Michel Potier-Ferry, Salim Belouettar, Yao Koutsawa, Pascal Ventura. Finite element modeling of surface morphological instabilities of filmsubstrate systems. 12e Colloque national en calcul des structures, CSMA, May 2015, Giens, France. ⟨hal-01514293⟩