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

Autor:	Xiaochuan Liu, Bozhou Di, Xiangnan Yu, Heli Liu, Saksham Dhawan, Denis J. Politis, Mateusz Kopec, Liliang Wang
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	formability M-K model failure criteria composite sandwich panel Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Zdroj:	Materials, Vol 15, Iss 12, p 4140 (2022)
Druh dokumentu:	article
ISSN:	1996-1944
DOI:	10.3390/ma15124140
Popis:	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.
Databáze:	Directory of Open Access Journals
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