Home > Research > Publications & Outputs > Experimental study and DEM modelling of bolted ...

Electronic data

  • 3d_dem_joints_final_rev

    Rights statement: This is the author’s version of a work that was accepted for publication in Composites Part B: Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composites Part B: Engineering, 190, 2020 DOI: 10.1016/j.compositesb.2020.107951

    Accepted author manuscript, 2.91 MB, PDF document

    Available under license: CC BY-NC-ND

Links

Text available via DOI:

View graph of relations

Experimental study and DEM modelling of bolted composite lap joints subjected to tension

Research output: Contribution to journalJournal articlepeer-review

Published
Close
Article number107951
<mark>Journal publication date</mark>1/06/2020
<mark>Journal</mark>Composites Part B: Engineering
Volume190
Number of pages14
Publication StatusPublished
Early online date6/03/20
<mark>Original language</mark>English

Abstract

This paper presents a numerical approach using the discrete element method to predict strength and damage propagation of plates and bolted lap joints subjected to axial tension. Tensile tests on GFRP plates and bolted joints are carried to obtained their overall stiffness and strength. A new three-dimensional discrete element model constructed by a 19-ball assembly is proposed and the relationships between the macro and the micro mechanical properties of FRP is established through calibrations using the test results. The calibrated DEM model is then used to reproduce the test results. Excellent agreements are achieved between the numerical and the experimental results in terms of not only the overall failure loads, but also the detailed failure modes, including cracking and delamination. The research shows great potential of the DEM model in predicting strength of composite materials and presenting detailed local damage and damage propagation at micro-scale, which represents a significant advantage over the conventional numerical methods, such as the finite element method. © 2020 Elsevier Ltd

Bibliographic note

This is the author’s version of a work that was accepted for publication in Composites Part B: Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composites Part B: Engineering, 190, 2020 DOI: 10.1016/j.compositesb.2020.107951