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Static performance of hot bonded inserts in honeycomb panels

Static performance of hot bonded inserts in honeycomb panels
Static performance of hot bonded inserts in honeycomb panels
An investigation on the structural performance of inserts within honeycomb sandwich panels is presented. The investigation only considers metallic inserts in all aluminum sandwich panels and emphasis is placed on the structural performance difference between hot bonded and cold bonded inserts. The former are introduced during panel manufacture while the latter are potted into existing panels. The investigation only deals with the static performance of the two insert systems subject to loads in the normal direction to the facing plane, which corresponds to their main mode of operation. The experimental part of the work presented involved carrying out pullout tests on hot bonded and cold bonded reference samples by loading them at a centrally located insert. As expected the hot bonded reference samples outperformed the cold bonded reference samples in terms of load carrying capabilities. An analytical model which allows the prediction of shear stress distribution in a circular sandwich panel normally loaded at a centrally located insert is used in an analytical approach for calculating the load carrying capability of inserts. The results from this analytical approach were found to correlate well with the experimental ones for the hot bonded inserts but not for the cold bonded inserts which actually failed at a significantly lower load than was predicted.
Bianchi, G.
e30e1d64-581e-4fc6-b702-00dd72102756
Aglietti, G.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Richardson, G.
edb47fd2-6071-4300-8734-77da4f139b7d
Bianchi, G.
e30e1d64-581e-4fc6-b702-00dd72102756
Aglietti, G.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Richardson, G.
edb47fd2-6071-4300-8734-77da4f139b7d

Bianchi, G., Aglietti, G. and Richardson, G. (2008) Static performance of hot bonded inserts in honeycomb panels. 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, USA. 06 - 09 Apr 2008.

Record type: Conference or Workshop Item (Paper)

Abstract

An investigation on the structural performance of inserts within honeycomb sandwich panels is presented. The investigation only considers metallic inserts in all aluminum sandwich panels and emphasis is placed on the structural performance difference between hot bonded and cold bonded inserts. The former are introduced during panel manufacture while the latter are potted into existing panels. The investigation only deals with the static performance of the two insert systems subject to loads in the normal direction to the facing plane, which corresponds to their main mode of operation. The experimental part of the work presented involved carrying out pullout tests on hot bonded and cold bonded reference samples by loading them at a centrally located insert. As expected the hot bonded reference samples outperformed the cold bonded reference samples in terms of load carrying capabilities. An analytical model which allows the prediction of shear stress distribution in a circular sandwich panel normally loaded at a centrally located insert is used in an analytical approach for calculating the load carrying capability of inserts. The results from this analytical approach were found to correlate well with the experimental ones for the hot bonded inserts but not for the cold bonded inserts which actually failed at a significantly lower load than was predicted.

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More information

Published date: 9 April 2008
Additional Information: AIAA 2008-2095
Venue - Dates: 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, USA, 2008-04-06 - 2008-04-09
Organisations: Astronautics Group

Identifiers

Local EPrints ID: 65110
URI: http://eprints.soton.ac.uk/id/eprint/65110
PURE UUID: a1d9e3cb-3285-4853-af4e-1e524156dd38

Catalogue record

Date deposited: 04 Feb 2009
Last modified: 08 Jan 2022 04:05

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Contributors

Author: G. Bianchi
Author: G. Aglietti
Author: G. Richardson

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