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Fabrication, testing and analysis of steel/composite DLS adhesive joints

Fabrication, testing and analysis of steel/composite DLS adhesive joints
Fabrication, testing and analysis of steel/composite DLS adhesive joints
This paper describes experimental and numerical techniques to study the structural design of double lap shear joints that are based on thick-adherend steel/steel and steel/composite, with epoxy adhesive. A standard practical fabrication method was used to produce specimens of various dimensions and materials. These specimens consist of 10 mm steel inner adherend and various outer adherend materials including composite and steel of various thicknesses and overlaps. The composite is largely based on carbon fibre reinforced plastic. The specimens were tested under monotonic tensile loading and the results showed that joint strength depends largely on materials combination and overlap length. The testing also included the use of an advanced imaging system to determine failure initiation and propagation. Two-dimensional finite element analysis (FEA) stress models were applied and showed the importance of modelling the composite layers adjacent to the adhesive bondline in order to account for the critical local stresses. The FEA results also showed that overall shear stress distributions can be used to characterise joint failure. The paper presents the experimental and numerical details with key conclusions.
adhesive bonding, lap-shear test, composite, steel, modelling
1744-5302
115-126
Hashim, S.
445695a2-3766-4dcd-80da-cbde3d2e5f6b
Berggreen, C.
f1a34d7a-9f2c-494a-85a3-0f5ad6968cb2
Tsouvalis, N.
ea5536e3-482d-48b8-8420-c2e0076e74af
McGeorge, D.
e38bdeae-46fe-419c-908b-e539db27c322
Chirica, I.
05fe90ef-8e20-4b4d-a105-a0b8dc9bd9e5
Moore, P.
986569cb-7f1f-4faa-a4d3-80a816384728
Boyd, S.W.
bcbdefe0-5acf-4d6a-8a16-f4abf7c78b10
Nisar, J.
b153f9c9-d757-41a9-be2f-04bf3eb07520
Anyfantis, K.
f6ea97f1-26f8-4ff2-a7f0-dbf29d0b1130
Misirlis, K.
28f7e2cc-aeae-4eb2-9ae5-fd85b9eeb053
Juin, E.
968a469d-1e15-4447-b65f-7fbf518d43f4
Hayman, B.
e2d0505d-b28d-4177-b754-a0f94806923f
Dow, R.
c86a1e3c-51f0-435b-afbe-eb7c93d8f643
Orsolini, A.
18bc7170-d3c8-45c9-bb1c-64b554893358
Hashim, S.
445695a2-3766-4dcd-80da-cbde3d2e5f6b
Berggreen, C.
f1a34d7a-9f2c-494a-85a3-0f5ad6968cb2
Tsouvalis, N.
ea5536e3-482d-48b8-8420-c2e0076e74af
McGeorge, D.
e38bdeae-46fe-419c-908b-e539db27c322
Chirica, I.
05fe90ef-8e20-4b4d-a105-a0b8dc9bd9e5
Moore, P.
986569cb-7f1f-4faa-a4d3-80a816384728
Boyd, S.W.
bcbdefe0-5acf-4d6a-8a16-f4abf7c78b10
Nisar, J.
b153f9c9-d757-41a9-be2f-04bf3eb07520
Anyfantis, K.
f6ea97f1-26f8-4ff2-a7f0-dbf29d0b1130
Misirlis, K.
28f7e2cc-aeae-4eb2-9ae5-fd85b9eeb053
Juin, E.
968a469d-1e15-4447-b65f-7fbf518d43f4
Hayman, B.
e2d0505d-b28d-4177-b754-a0f94806923f
Dow, R.
c86a1e3c-51f0-435b-afbe-eb7c93d8f643
Orsolini, A.
18bc7170-d3c8-45c9-bb1c-64b554893358

Hashim, S., Berggreen, C., Tsouvalis, N., McGeorge, D., Chirica, I., Moore, P., Boyd, S.W., Nisar, J., Anyfantis, K., Misirlis, K., Juin, E., Hayman, B., Dow, R. and Orsolini, A. (2011) Fabrication, testing and analysis of steel/composite DLS adhesive joints. Ships and Offshore Structures, 6 (1-2), 115-126. (doi:10.1080/17445302.2010.522019).

Record type: Article

Abstract

This paper describes experimental and numerical techniques to study the structural design of double lap shear joints that are based on thick-adherend steel/steel and steel/composite, with epoxy adhesive. A standard practical fabrication method was used to produce specimens of various dimensions and materials. These specimens consist of 10 mm steel inner adherend and various outer adherend materials including composite and steel of various thicknesses and overlaps. The composite is largely based on carbon fibre reinforced plastic. The specimens were tested under monotonic tensile loading and the results showed that joint strength depends largely on materials combination and overlap length. The testing also included the use of an advanced imaging system to determine failure initiation and propagation. Two-dimensional finite element analysis (FEA) stress models were applied and showed the importance of modelling the composite layers adjacent to the adhesive bondline in order to account for the critical local stresses. The FEA results also showed that overall shear stress distributions can be used to characterise joint failure. The paper presents the experimental and numerical details with key conclusions.

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More information

Published date: March 2011
Keywords: adhesive bonding, lap-shear test, composite, steel, modelling
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 177861
URI: http://eprints.soton.ac.uk/id/eprint/177861
ISSN: 1744-5302
PURE UUID: 839e37f3-bf94-496d-bbff-62127f03a368

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Date deposited: 21 Mar 2011 16:39
Last modified: 09 Jan 2022 02:14

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Contributors

Author: S. Hashim
Author: C. Berggreen
Author: N. Tsouvalis
Author: D. McGeorge
Author: I. Chirica
Author: P. Moore
Author: S.W. Boyd
Author: J. Nisar
Author: K. Anyfantis
Author: K. Misirlis
Author: E. Juin
Author: B. Hayman
Author: R. Dow
Author: A. Orsolini

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