Interfacial characterization of pre-strained polymer coated steel by a numerical-experimental approach

Autor: van den Mj Marco Bosch, van Mpfhl Marc Maris, Pjg Piet Schreurs, Mgd Marc Geers
Přispěvatelé: Mechanics of Materials, Processing and Performance, Mechanical Engineering, Group Geers
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Mechanics of Materials, 40(4-5), 302-317. Elsevier
ISSN: 0167-6636
DOI: 10.1016/j.mechmat.2007.09.002
Popis: In this paper, the delamination in pre-strained polymer coated steel is quantitatively characterized through a combined numerical–experimental approach. The surface roughening of the steel substrate is analyzed by a correlation technique and coupled to the pre-deformation of the coating. The polymer coating shows a clear stress relaxation after pre-deformation, which requires special attention for the correct numerical characterization of the interface. A large displacement cohesive zone model is extended with an interfacial pre-damage parameter representing the loss of adhesion due to substrate roughening. Finally, peel tests are performed on pre-strained specimens, on the basis of which the interface is characterized by an inverse parameter identification procedure.
Databáze: OpenAIRE