A numerical study on the impact resistance of composite shells using an energy based failure model

This paper presents a numerical study on the impact resistance of composite shells laminates using an energy based failure model. The damage model formulation is based on a methodology that combines stress based, continuum damage mechanics (CDM) and fracture mechanics approaches within a unified pro...

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Bibliographic Details
Published in:Composite structures 2010-12, Vol.93 (1), p.142-152
Main Authors: Yokoyama, N.O., Donadon, M.V., de Almeida, S.F.M.
Format: Article
Language:English
Subjects:
Composite structures
Composites
Curvature
Damage
Damage mechanics
Energy use
Exact sciences and technology
Failure
Finite element method
Finite elements
Fracture mechanics
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Impact
Mathematical analysis
Mathematical models
Physics
Shells
Solid mechanics
Structural and continuum mechanics
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Summary:This paper presents a numerical study on the impact resistance of composite shells laminates using an energy based failure model. The damage model formulation is based on a methodology that combines stress based, continuum damage mechanics (CDM) and fracture mechanics approaches within a unified procedure by using a smeared cracking formulation. The damage model has been implemented as a user-defined material model in ABAQUS FE code within shell elements. Experimental results obtained from previous works were used to validate the damage model. Finite element models were developed in order to investigate the pressure and curvature effects on the impact response of laminated composite shells.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2010.06.006