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Corner impact and compression after impact (CAI) of thin-walled composite profile - An experimental study

Gliszczynski, Adrian and Bogenfeld, Raffael Marius and Degenhardt, Richard and Kubiak, Tomasz (2020) Corner impact and compression after impact (CAI) of thin-walled composite profile - An experimental study. Composite Structures (248). Elsevier. doi: 10.1016/j.compstruct.2020.112502. ISSN 0263-8223.

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Official URL: https://doi.org/10.1016/j.compstruct.2020.112502


Experimental investigations of channel‐section profiles subjected to compression after impacts (20 J and 30 J) leading to global failure are presented. The columns under discussion were made of an eight‐layer GFRP laminate with quasi‐isotropic, quasi‐orthotropic and angle ply arrangements of layers. The profiles were impacted in the corner in three variants: perpendicularly to the flange, at an angle of 45 to the web and perpendicularly to the web. All impact cases were characterized by a high level of absorbed energy (over 75%), which led to a barely visible impact damage, extensive fiber rupture, visible cracks in the laminate or material continuity loss. The load carrying capacity of the profiles degraded by the corner impact always decreases in relation to the not‐impacted structures but every case was characterized by stable, postbuckling equilibrium paths. The most dangerous scenario was the corner impact introduced perpendicular to the web.

Item URL in elib:https://elib.dlr.de/136181/
Document Type:Article
Title:Corner impact and compression after impact (CAI) of thin-walled composite profile - An experimental study
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Gliszczynski, AdrianLodz University of Technologyhttps://orcid.org/0000-0002-2421-093X
Bogenfeld, Raffael MariusUNSPECIFIEDhttps://orcid.org/0000-0003-3883-269X
Degenhardt, RichardUNSPECIFIEDhttps://orcid.org/0000-0002-9766-9418
Kubiak, TomaszLodz University of TechnologyUNSPECIFIED
Date:May 2020
Journal or Publication Title:Composite Structures
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
EditorsEmailEditor's ORCID iD
Keywords:Laminates, Buckling, Damage Tolerance, Impact behavior, Compression after impact (CAI)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old), L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Bogenfeld, Raffael Marius
Deposited On:26 Oct 2020 07:43
Last Modified:28 Mar 2023 23:57

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