Mechanical properties of Miura-based folded cores under quasi-static loads

Sandwich structures with folded cores are regarded as a promising alternative to conventional honeycomb sandwich structures in the aerospace industry. This paper presents a parametric study on the mechanical properties of a variety of Miura-based folded core models virtually tested in quasi-static...

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Main Authors: Zhou, X, Wang, H, You, Z
Format: Journal article
Published: Elsevier 2014
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author Zhou, X
Wang, H
You, Z
author_facet Zhou, X
Wang, H
You, Z
author_sort Zhou, X
collection OXFORD
description Sandwich structures with folded cores are regarded as a promising alternative to conventional honeycomb sandwich structures in the aerospace industry. This paper presents a parametric study on the mechanical properties of a variety of Miura-based folded core models virtually tested in quasi-static compression, shear and bending using the finite element method. It is found that the folded core models with curved fold lines exhibit the best mechanical performances in compression and shear while the multiple layered models outperform the other folded core models in bending. Furthermore, the folded core models are compared to a honeycomb core model with the same density and height. In this case, it is shown that the honeycomb core has the best performance in compression while the folded cores have comparable or even better performances in the shear and bending cases. The virtual test results reported in this paper can provide researchers with a general guideline to design the most suitable folded core structure for certain applications.
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spelling oxford-uuid:cc693575-8393-4880-bb41-58836b1961462022-03-27T07:21:45Z Mechanical properties of Miura-based folded cores under quasi-static loads Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cc693575-8393-4880-bb41-58836b196146Symplectic Elements at OxfordElsevier2014Zhou, XWang, HYou, Z Sandwich structures with folded cores are regarded as a promising alternative to conventional honeycomb sandwich structures in the aerospace industry. This paper presents a parametric study on the mechanical properties of a variety of Miura-based folded core models virtually tested in quasi-static compression, shear and bending using the finite element method. It is found that the folded core models with curved fold lines exhibit the best mechanical performances in compression and shear while the multiple layered models outperform the other folded core models in bending. Furthermore, the folded core models are compared to a honeycomb core model with the same density and height. In this case, it is shown that the honeycomb core has the best performance in compression while the folded cores have comparable or even better performances in the shear and bending cases. The virtual test results reported in this paper can provide researchers with a general guideline to design the most suitable folded core structure for certain applications.
spellingShingle Zhou, X
Wang, H
You, Z
Mechanical properties of Miura-based folded cores under quasi-static loads
title Mechanical properties of Miura-based folded cores under quasi-static loads
title_full Mechanical properties of Miura-based folded cores under quasi-static loads
title_fullStr Mechanical properties of Miura-based folded cores under quasi-static loads
title_full_unstemmed Mechanical properties of Miura-based folded cores under quasi-static loads
title_short Mechanical properties of Miura-based folded cores under quasi-static loads
title_sort mechanical properties of miura based folded cores under quasi static loads
work_keys_str_mv AT zhoux mechanicalpropertiesofmiurabasedfoldedcoresunderquasistaticloads
AT wangh mechanicalpropertiesofmiurabasedfoldedcoresunderquasistaticloads
AT youz mechanicalpropertiesofmiurabasedfoldedcoresunderquasistaticloads