The analysis of the effects due to a failure of a structural component is of primary interest in the design of aerospace structures. The damages in a structure affect the displacement and stress fields, and the dynamic response can be strongly afflicted too. Free-vibration analyses are performed by an advanced 1-D model to evaluate the modal behavior in a multi-component damaged structure. The present 1-D model, using expansions to evaluate the displacement field over the cross-section, is able to describe complex geometries without approximations. Moreover, it can modify the material proprieties, then the stiffness, at the local level. In this way, a high fidelity description of a damaged structure can be achieved. The results show the capability of the present model to deal with this topic making him a good candidate for a design processing tool.

High-Fidelity modeling and dynamic analysis of damaged tapered composite structures / Carrera, E.; Viglietti, A.; Zappino, E.. - (2017). ((Intervento presentato al convegno ICCM 21 - 21st International Conference on Composite Materials tenutosi a Xi’an, China nel 20-25 August,2017.

High-Fidelity modeling and dynamic analysis of damaged tapered composite structures

Carrera E.;Viglietti A.;Zappino E.
2017

Abstract

The analysis of the effects due to a failure of a structural component is of primary interest in the design of aerospace structures. The damages in a structure affect the displacement and stress fields, and the dynamic response can be strongly afflicted too. Free-vibration analyses are performed by an advanced 1-D model to evaluate the modal behavior in a multi-component damaged structure. The present 1-D model, using expansions to evaluate the displacement field over the cross-section, is able to describe complex geometries without approximations. Moreover, it can modify the material proprieties, then the stiffness, at the local level. In this way, a high fidelity description of a damaged structure can be achieved. The results show the capability of the present model to deal with this topic making him a good candidate for a design processing tool.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2704010
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