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Strength evaluation and failure prediction of bolted and adhesive glass/steel joints

Strength evaluation and failure prediction of bolted and adhesive glass/steel joints
Strength evaluation and failure prediction of bolted and adhesive glass/steel joints
This paper investigates the use of bolted and brittle/ductile adhesive connections in glass structures. Two benchmark designs of shear connections are introduced and tested experimentally in quasi-static tensile tests. The designs consist of tempered glass and aluminium substrates while steel splices are used for the load application. In addition, material characterisation testing for the glass and the adhesive is performed and the outputs are used for the numerical simulation of the same joints. Pressure-sensitive, plasticity and failure models are introduced and calibrated to accurately capture the behaviour of the adhesives. Good agreement between the experimental observations and numerical predictions is achieved. The results show that both types of adhesive joints outperform bolted joints while counter-intuitively the lower strength ductile adhesive achieves consistently higher joint strength compared to the brittle adhesive. The numerical analyses highlight that brittle adhesive joints fail once the fracture strain of the adhesive has been reached, while for ductile adhesives an extensive plastic zone develops near the areas of stress concentrations thereby delaying the damage initiation.
Glass structures, Adhesive joints, Bolted joints, Material characterisation testing, Numerical modelling
10.1007%2Fs40940-018-0070-0
183–196
Katsivalis, Ioannis
d5162f7b-334f-4955-863a-75dba6f48d9b
Thomsen, Ole
f3e60b22-a09f-4d58-90da-d58e37d68047
Feih, Stefanie
993c164c-b69f-40ce-b80f-d976a9989175
Achintha, Mathila
8163c322-de6d-4791-bc31-ba054cc0e07d
Katsivalis, Ioannis
d5162f7b-334f-4955-863a-75dba6f48d9b
Thomsen, Ole
f3e60b22-a09f-4d58-90da-d58e37d68047
Feih, Stefanie
993c164c-b69f-40ce-b80f-d976a9989175
Achintha, Mathila
8163c322-de6d-4791-bc31-ba054cc0e07d

Katsivalis, Ioannis, Thomsen, Ole, Feih, Stefanie and Achintha, Mathila (2018) Strength evaluation and failure prediction of bolted and adhesive glass/steel joints. Glass Structures & Engineering, 3 (2), 183–196. (doi:10.1007%2Fs40940-018-0070-0).

Record type: Article

Abstract

This paper investigates the use of bolted and brittle/ductile adhesive connections in glass structures. Two benchmark designs of shear connections are introduced and tested experimentally in quasi-static tensile tests. The designs consist of tempered glass and aluminium substrates while steel splices are used for the load application. In addition, material characterisation testing for the glass and the adhesive is performed and the outputs are used for the numerical simulation of the same joints. Pressure-sensitive, plasticity and failure models are introduced and calibrated to accurately capture the behaviour of the adhesives. Good agreement between the experimental observations and numerical predictions is achieved. The results show that both types of adhesive joints outperform bolted joints while counter-intuitively the lower strength ductile adhesive achieves consistently higher joint strength compared to the brittle adhesive. The numerical analyses highlight that brittle adhesive joints fail once the fracture strain of the adhesive has been reached, while for ductile adhesives an extensive plastic zone develops near the areas of stress concentrations thereby delaying the damage initiation.

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KATSIVALIS paper CGC6 revised - Accepted Manuscript
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More information

Accepted/In Press date: 27 March 2018
e-pub ahead of print date: 20 April 2018
Published date: 1 May 2018
Keywords: Glass structures, Adhesive joints, Bolted joints, Material characterisation testing, Numerical modelling

Identifiers

Local EPrints ID: 419458
URI: http://eprints.soton.ac.uk/id/eprint/419458
PURE UUID: f93723d3-5341-4cc7-a18e-2822c52eca96
ORCID for Mathila Achintha: ORCID iD orcid.org/0000-0002-1732-3514

Catalogue record

Date deposited: 12 Apr 2018 16:30
Last modified: 07 Oct 2020 05:38

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Contributors

Author: Ioannis Katsivalis
Author: Ole Thomsen
Author: Stefanie Feih

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