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3D explicit simulation of bearing failure in metal–composite bolted joints
RISE Research Institutes of Sweden, Materials and Production, Polymeric Materials and Composites. National University of Singapore, Singapore.ORCID iD: 0000-0001-9507-3023
RISE Research Institutes of Sweden, Materials and Production, Polymeric Materials and Composites.
National University of Singapore, Singapore.
2022 (English)In: Composite structures, ISSN 0263-8223, E-ISSN 1879-1085, Vol. 284, article id 115108Article in journal (Refereed) Published
Abstract [en]

Hybrid bolted joints between composite materials and metals are an example of composites’ sensitivity to notches. The current research paper presents an experimental test setup on single-lap shear bolted joints of a unidirectional (UD) composite laminate with steel plate exposed to a tensile load. A 3D explicit finite element (FE) simulation is developed using ABAQUS/Explicit and a 3D physically-based progressive damage model in the VUMAT subroutine. The model can identify the locations of delamination represented by the fully damaged plies among other degrading properties. Then “damage and cohesive” contact surfaces are defined in the respected damaged plies, for the material interface, to simulate interlaminar damage and delamination. The predicted failure load was significantly influenced by the combination of a 3D physically-based progressive damage model and damage and cohesive surfaces. The combined model can reproduce with accuracy the experimental load–displacement test curves up to the point where bearing damage occurs. Experimental results using DIC measurement are presented to demonstrate the feasibility of the methodology. The study shows that numerical models can be used to help in the stiffness and strength design of the bolted joints of composites and metals, but further improvements are necessary to predict the energy absorption. 

Place, publisher, year, edition, pages
Elsevier Ltd , 2022. Vol. 284, article id 115108
Keywords [en]
Computational modeling, Damage mechanics, Delamination, Joints/joining, Polymer-matrix composites (PMCs), ABAQUS, Bolted joints, Bolts, Failure (mechanical), Hybrid composites, Laminated composites, Shear flow, Bearing failures, Composite bolted joints, Computational modelling, Damage modelling, Damage-mechanics, Metal composites, Physically based, Polymer-matrix composite, Progressive damage, Polymer matrix composites
National Category
Composite Science and Engineering
Identifiers
URN: urn:nbn:se:ri:diva-58143DOI: 10.1016/j.compstruct.2021.115108Scopus ID: 2-s2.0-85122163465OAI: oai:DiVA.org:ri-58143DiVA, id: diva2:1626407
Note

 Funding details: PMCP – WP1-1; Funding details: Agency for Science, Technology and Research, A*STAR, A19C1a0044, NUS WBS R265000673305; Funding text 1: This research is supported by the RISE Research Institute of Sweden under the project Hybrid Joints, no. SK25110-1860 and also by the Agency for Science, Technology, and Research (A*STAR), Singapore under Polymer Matrix Composites Programme (PMCP – WP1-1) project through Grant no. A19C1a0044 (NUS WBS R265000673305).

Available from: 2022-01-11 Created: 2022-01-11 Last updated: 2023-05-26Bibliographically approved

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Rouhi, Mohammad

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