Tesi etd-05042022-174719 |
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Tipo di tesi
Tesi di laurea magistrale
Autore
PAPANDREA, VITTORIO
URN
etd-05042022-174719
Titolo
Development and simulation of invariant-based plasticity models for a carbon epoxy composite
Dipartimento
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
INGEGNERIA AEROSPAZIALE
Relatori
relatore Prof. Fanteria, Daniele
correlatore Prof.ssa Boni, Luisa
correlatore Prof.ssa Boni, Luisa
Parole chiave
- FEM
- Composite material
Data inizio appello
14/06/2022
Consultabilità
Non consultabile
Data di rilascio
14/06/2092
Riassunto
The thesis consisted in the development of two transversely-isotropic elastic–plastic constitutive models for unidirectional fiber reinforced polymers.
Both these models are able to represent the fully non-linear behaviour under multi-axial loading conditions.
Moreover, an anisotropic pressure-dependant yield function and a non-associated plastic potential function, are assumed in order to model realistic plastic deformations.
The models were then implemented in the commercial finite element software ABAQUS/Implicit, for which two UMAT (user defined material subroutines) in FORTRAN had been developed.
Both these models are able to represent the fully non-linear behaviour under multi-axial loading conditions.
Moreover, an anisotropic pressure-dependant yield function and a non-associated plastic potential function, are assumed in order to model realistic plastic deformations.
The models were then implemented in the commercial finite element software ABAQUS/Implicit, for which two UMAT (user defined material subroutines) in FORTRAN had been developed.
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