Open AccessExperimental and numerical investigation of the transition zone of locally steel-reinforced joining areas under combined tension–bending loading
Author(s) -
Enno Petersen,
Josef Koord,
Oliver Völkerink,
Daniel Stefaniak,
Christian Hühne
Publication year - 2019
Publication title -
journal of composite materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 91
eISSN - 1530-793X
pISSN - 0021-9983
DOI - 10.1177/0021998319893729
Subject(s) - materials science , composite material , delamination (geology) , tension (geology) , bending , parametric statistics , carbon steel , transition zone , structural engineering , ultimate tensile strength , corrosion , subduction , biology , paleontology , statistics , tectonics , mathematics , engineering , geochemistry , geology
In modern lightweight structures, the use of fasteners is preferred to other joining techniques. An approach to increase the bearing strength is the local metal hybridisation, where carbon fibre-reinforced plastics layers are substituted locally by metal foils of the same thickness. The local replacement leads to a transition zone between the hybrid region and the pure carbon fibre-reinforced plastics region. The present work deals with the investigation of different transition zone patterns of carbon fibre-reinforced plastics-steel hybrid specimens in combined tension–bending tests and accompanying non-linear static simulation. The simulation includes delamination and intralaminar damage with the use of a cohesive zone model and Cuntze’s failure mode concept. Furthermore, residual thermal stresses are considered. A satisfying agreement of test and simulation is achieved, which allows the identification of beneficial transition zone configurations and also validates the numerical model for further parametric studies.