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Damage evolution in fiber reinforced polymer‐metal joints – modeling and simulation
Author(s) -
Hirsch Franz,
Kästner Markus
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800449
Subject(s) - homogenization (climate) , microscale chemistry , materials science , composite material , traction (geology) , polymer , fibre reinforced plastic , surface finish , surface roughness , aluminium , mechanical engineering , engineering , biodiversity , ecology , mathematics education , mathematics , biology
In this contribution, the interface behavior of an aluminum component connected to an FRP is considered on the microscale. Different local features, e.g. the surface roughness, fibers near the interface and local failure of the polymer material and their effects on the overall interface characteristics are investigated. Computational homogenization schemes enable the derivation of effective traction‐separation laws for representative interface elements. The polymer material can exhibit large deformations up to failure, which is modeled with a gradient‐enhanced finite strain elastic‐plastic damage model.