Anton Köllner is a Marie Skłodowska-Curie Individual Fellow in the Structures Section of the Civil and Environmental Engineering Department working on the EU H2020 project DamBuckler. In his research, Anton Köllner investigates the interaction of structural instability and material damage aiming at theoretical formulations which yield efficient modelling approaches of deformation processes of damaged lightweight construction, in particular fibre reinforced polymer composite structures.
Anton Köllner is also active in teaching. He is the course leader of the module Stability and Failure of Composite Structures in the MEng and MSc programme of the department.
Before joining Imperial in September 2019, Anton Köllner has been working as a postdoctoral researcher with lecturing responsibilities at Technische Universität Berlin, where he had held a position as research associate at the Institute of Mechanics, Stability and Failure of Functionally Optimized Structures Group, since 2013 and received his doctoral degree (Dr.-Ing./PhD, grade: summa cum laude/with distinction) in 2017. His doctoral work was awarded with the Dr.-Klaus-Körper Prize of GAMM (International Association of Applied Mathematics and Mechanics) in 2018. He holds a Master degree in Mechanical Engineering (MEng(Hons), First Class Honours) from The University of Auckland (2012) and a Bachelor degree from Chemnitz University of Technology (2010).
Current research outcomes
The first part of the DamBuckler is summarized below in the form of a graphical abstract. We have developed an analytical model to predict buckling-driven delamination growth providing insights into factors governing compression-after-impact strength and damage tolerant design of composite structures. The model is validated by comprehensive comparisons with experiments and high-fidelity numerical simulations.
Detailed information can be found in recent publications Köllner A, 2021, Composite Structures, 266, 113776 and Köllner A et al., 2021, Thin-Walled Structures, 161, 107468.
Köllner A, 2021, Predicting buckling-driven delamination propagation in composite laminates: An analytical modelling approach, Composite Structures, Vol:266, ISSN:0263-8223, Pages:1-17
et al., 2021, Buckle-driven delamination models for laminate strength prediction and damage tolerant design, Thin Walled Structures, Vol:161, ISSN:0263-8231
et al., 2020, On the interaction of delamination buckling and damage growth in cross-ply laminates, International Journal of Solids and Structures, Vol:202, ISSN:0020-7683, Pages:912-928
et al., 2019, Experimental and numerical investigation on pre-stressed lattice structures, Thin-walled Structures, Vol:145, ISSN:0263-8231