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Investigating the impact of thermal stresses on blistering effects in sandwich panels

Kühn, Annalena ; Haugwitz, Christoph ; Hinrichs, Jan ; Kupnik, Mario ; Lange, Jörg (2023)
Investigating the impact of thermal stresses on blistering effects in sandwich panels.
In: ce/papers : Proceedings in civil engineering, 2023, 6 (3-4)
doi: 10.26083/tuprints-00024705
Article, Secondary publication, Publisher's Version

Abstract

Lightweight steel constructions made of sandwich panels are an economical solution for wall and roof claddings, especially in industrial construction. The panels consist of two thin sheets of steel and a core with thermal insulating properties. In the mounted state and at high temperatures on the outer face of the panel, damage to the components may occur due to blister formation. In a current research project, the influence of defects in sandwich panels with a PIR‐foam core is examined. This article presents the results of experimental tests regarding the influence of various parameters, such as face temperature, production defects and design of the longitudinal joint on blistering in sandwich wall panels with a PIR‐core. The aim is to identify the necessary conditions for the occurrence of blisters. Using an optical strain measuring method (Digital Image Correlation), the temperature‐induced deformations and strains in the covering nose of sandwich wall panels with hidden fastening are measured and will be analyzed with regard to blistering. First results reveal a significant dependence on the geometry and design of the covering nose.

Item Type: Article
Erschienen: 2023
Creators: Kühn, Annalena ; Haugwitz, Christoph ; Hinrichs, Jan ; Kupnik, Mario ; Lange, Jörg
Type of entry: Secondary publication
Title: Investigating the impact of thermal stresses on blistering effects in sandwich panels
Language: English
Date: 7 November 2023
Place of Publication: Darmstadt
Year of primary publication: 2023
Place of primary publication: Berlin
Publisher: Ernst & Sohn, a Wiley brand
Journal or Publication Title: ce/papers : Proceedings in civil engineering
Volume of the journal: 6
Issue Number: 3-4
DOI: 10.26083/tuprints-00024705
URL / URN: https://tuprints.ulb.tu-darmstadt.de/24705
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

Lightweight steel constructions made of sandwich panels are an economical solution for wall and roof claddings, especially in industrial construction. The panels consist of two thin sheets of steel and a core with thermal insulating properties. In the mounted state and at high temperatures on the outer face of the panel, damage to the components may occur due to blister formation. In a current research project, the influence of defects in sandwich panels with a PIR‐foam core is examined. This article presents the results of experimental tests regarding the influence of various parameters, such as face temperature, production defects and design of the longitudinal joint on blistering in sandwich wall panels with a PIR‐core. The aim is to identify the necessary conditions for the occurrence of blisters. Using an optical strain measuring method (Digital Image Correlation), the temperature‐induced deformations and strains in the covering nose of sandwich wall panels with hidden fastening are measured and will be analyzed with regard to blistering. First results reveal a significant dependence on the geometry and design of the covering nose.

Uncontrolled Keywords: Lightweight steel constructions, sandwich panels, PIR‐foam core, hidden fastening, blistering
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-247055
Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
600 Technology, medicine, applied sciences > 621.3 Electrical engineering, electronics
600 Technology, medicine, applied sciences > 624 Civil engineering and environmental protection engineering
Divisions: 13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics
13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics > Steel Constructions
18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Measurement and Sensor Technology
Date Deposited: 07 Nov 2023 12:17
Last Modified: 08 Nov 2023 06:15
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