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Sandwich structures bearing resorcinol-formaldehyde aerogel honeycomb cores

Henn, Fabian Alexander and Milow, Barbara and Tannert, René (2023) Sandwich structures bearing resorcinol-formaldehyde aerogel honeycomb cores. FEMS EUROMAT 2023, 2023-09-03 - 2023-09-07, Frankfurt, Duetschland.

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Light-weight materials bearing additional functionality may contribute in future towards saving energy within the transport sector. Due to their high compressive strength and capacity to absorb energy upon impact, honeycombs have long been used as core constituent of sandwich structures. However, despite their favourable mechanical properties, such sandwich structures do not generally act as thermal insulators, as the honeycombs are typically filled with air, thus contributing to convective heat transfer. One concept for reducing the heat transfer of honeycomb sandwich structures is based on filling the honeycombs with aerogel materials. Aerogels are nanoporous lightweight materials with super-insulating properties. To date, only a few examples of honeycombs filled with aerogels are known, but these composites are basically limited to aerogels combined with honeycombs from paper or aramid. Here, we report on resorcinol-formaldehyde aerogels, honeycombs made from aramid and aluminium, respectively, as well as aerogel filled honeycombs and sandwich structures resulting from lamination of filled honeycombs with aluminium cover sheets. Apart from the production process, the mechanical behaviour under compression and thermal conductivity are evaluated. Furthermore, simulative tools were employed in order to describe and predict the mechanical behaviour of the aerogel-honeycomb composites. The obtained results will be presented and discussed.

Item URL in elib:https://elib.dlr.de/197963/
Document Type:Conference or Workshop Item (Poster)
Title:Sandwich structures bearing resorcinol-formaldehyde aerogel honeycomb cores
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Henn, Fabian AlexanderUNSPECIFIEDhttps://orcid.org/0000-0002-9768-399XUNSPECIFIED
Milow, BarbaraUNSPECIFIEDhttps://orcid.org/0000-0002-6350-7728UNSPECIFIED
Tannert, RenéUNSPECIFIEDhttps://orcid.org/0000-0001-9484-8886UNSPECIFIED
Date:5 September 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:aerogel, aerogel composites, resorcinol formaldehyde aerogel, lightweight, sandwich materials, composites, honeycomb structures
Event Title:FEMS EUROMAT 2023
Event Location:Frankfurt, Duetschland
Event Type:international Conference
Event Start Date:3 September 2023
Event End Date:7 September 2023
Organizer:Deutsche Gesellschaft für Materialkunde e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - FFAE - Fahrzeugkonzepte, Fahrzeugstruktur, Antriebsstrang und Energiemanagement
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogels and Aerogel Composites
Deposited By: Henn, Fabian Alexander
Deposited On:19 Oct 2023 07:52
Last Modified:24 Apr 2024 20:58

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