Development of a Formability Prediction Model for Aluminium Sandwich Panels with Polymer Core

In the present work, the compatibility relationship on the failure criteria between aluminium and polymer was established, and a mechanics-based model for a three-layered sandwich panel was developed based on the M-K model to predict its Forming Limit Diagram (FLD). A case study for a sandwich panel...

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Main Authors: Xiaochuan Liu, Bozhou Di, Xiangnan Yu, Heli Liu, Saksham Dhawan, Denis J. Politis, Mateusz Kopec, Liliang Wang
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/12/4140
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author Xiaochuan Liu
Bozhou Di
Xiangnan Yu
Heli Liu
Saksham Dhawan
Denis J. Politis
Mateusz Kopec
Liliang Wang
author_facet Xiaochuan Liu
Bozhou Di
Xiangnan Yu
Heli Liu
Saksham Dhawan
Denis J. Politis
Mateusz Kopec
Liliang Wang
author_sort Xiaochuan Liu
collection DOAJ
description In the present work, the compatibility relationship on the failure criteria between aluminium and polymer was established, and a mechanics-based model for a three-layered sandwich panel was developed based on the M-K model to predict its Forming Limit Diagram (FLD). A case study for a sandwich panel consisting of face layers from AA5754 aluminium alloy and a core layer from polyvinylidene difluoride (PVDF) was subsequently conducted, suggesting that the loading path of aluminium was linear and independent of the punch radius, while the risk for failure of PVDF increased with a decreasing radius and an increasing strain ratio. Therefore, the developed formability model would be conducive to the safety evaluation on the plastic forming and critical failure of composite sandwich panels.
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spelling doaj.art-f23fccfefd184b21a318561cd84e3dc92023-11-23T17:43:21ZengMDPI AGMaterials1996-19442022-06-011512414010.3390/ma15124140Development of a Formability Prediction Model for Aluminium Sandwich Panels with Polymer CoreXiaochuan Liu0Bozhou Di1Xiangnan Yu2Heli Liu3Saksham Dhawan4Denis J. Politis5Mateusz Kopec6Liliang Wang7Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKDepartment of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKDepartment of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKDepartment of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKDepartment of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKDepartment of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia 1678, CyprusDepartment of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKDepartment of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKIn the present work, the compatibility relationship on the failure criteria between aluminium and polymer was established, and a mechanics-based model for a three-layered sandwich panel was developed based on the M-K model to predict its Forming Limit Diagram (FLD). A case study for a sandwich panel consisting of face layers from AA5754 aluminium alloy and a core layer from polyvinylidene difluoride (PVDF) was subsequently conducted, suggesting that the loading path of aluminium was linear and independent of the punch radius, while the risk for failure of PVDF increased with a decreasing radius and an increasing strain ratio. Therefore, the developed formability model would be conducive to the safety evaluation on the plastic forming and critical failure of composite sandwich panels.https://www.mdpi.com/1996-1944/15/12/4140formabilityM-K modelfailure criteriacomposite sandwich panel
spellingShingle Xiaochuan Liu
Bozhou Di
Xiangnan Yu
Heli Liu
Saksham Dhawan
Denis J. Politis
Mateusz Kopec
Liliang Wang
Development of a Formability Prediction Model for Aluminium Sandwich Panels with Polymer Core
Materials
formability
M-K model
failure criteria
composite sandwich panel
title Development of a Formability Prediction Model for Aluminium Sandwich Panels with Polymer Core
title_full Development of a Formability Prediction Model for Aluminium Sandwich Panels with Polymer Core
title_fullStr Development of a Formability Prediction Model for Aluminium Sandwich Panels with Polymer Core
title_full_unstemmed Development of a Formability Prediction Model for Aluminium Sandwich Panels with Polymer Core
title_short Development of a Formability Prediction Model for Aluminium Sandwich Panels with Polymer Core
title_sort development of a formability prediction model for aluminium sandwich panels with polymer core
topic formability
M-K model
failure criteria
composite sandwich panel
url https://www.mdpi.com/1996-1944/15/12/4140
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