Analysis and test definition of adhesively bonded joints in aircraft structures
Typ
Examensarbete för masterexamen
Program
Publicerad
2022
Författare
Tiwari, Prashant Anil
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
This report covers the analyses of the adhesively bonded joints in the cargo door of the
Clean Sky 2 project FMCD. Adhesives undergo large rotation and its failure is dependent
on hydrostatic and deviatoric stresses. Extended Drucker-Prager method has been used
to capture the elastoplastic response of the adhesive in FEM. Adhesives and adherends are
modelled as hexahedral elements. Spew fillets are used to reduce the effect of singularities
at the edge of the joints. To keep the computational time less, only the critical location is
modelled with solid adhesive and adherends. 1D elements with adhesive material properties
are used to model the non critical regions. The FE method shows promising results
at the critical regions where analytical method did not
Beskrivning
Ämne/nyckelord
Aircraft , Adhesive , Finite element method , Drucker-Prager