Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Anton Köllner"'
Autor:
Antonia Dönitz, Anton Köllner, Tim Richter, Oliver Löschke, Dietmar Auhl, Christina Völlmecke
Publikováno v:
Polymers, Vol 15, Iss 10, p 2271 (2023)
The additive manufacturing of natural fibre-reinforced polymers is a pivotal method in developing sustainable engineering solutions. Using the fused filament fabrication method, the current study investigates the additive manufacturing of hemp-reinfo
Externí odkaz:
https://doaj.org/article/6a62db09db0943ed8229fbebb8f39e9b
Publikováno v:
International Journal of Solids and Structures. 202:912-928
The compressive behaviour of cross-ply laminates with delaminations and matrix cracked layers is investigated by means of an analytical modelling approach. Insight into the post-buckling and damage growth behaviour is obtained owing to comprehensive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea881308e9a1ae0fa40bd49f4ab811c7
https://doi.org/10.1016/j.ijsolstr.2020.05.035
https://doi.org/10.1016/j.ijsolstr.2020.05.035
Autor:
Anton Köllner, M. Ahmer Wadee
Publikováno v:
European Journal of Mechanics - A/Solids. 96:104748
A novel analytical framework for the inclusion of active damaging processes in a structural stability analysis is presented. The framework considers quasi-static deformation processes and is formulated in terms of a discrete coordinate approach, empl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8ccb706dd46562b975ad5037e334588
https://doi.org/10.1016/j.euromechsol.2022.104748
https://doi.org/10.1016/j.euromechsol.2022.104748
Publikováno v:
International Journal of Mechanical Sciences
A variational model describing the nonlinear mode interaction in thin-walled box-section struts under pure axial compression made from a nonlinear material obeying the Ramberg–Osgood law is presented. The formulation combines continuous displacemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c871582ea8fb2606b5bcf6c058278fd
http://hdl.handle.net/10044/1/90930
http://hdl.handle.net/10044/1/90930
Autor:
Anton Köllner
Publikováno v:
Composite Structures
Robust and efficient predictions of buckling-driven delamination propagation , enabled by a novel analytical modelling approach, are presented. The model considers full mechanical coupling (extension-shear, extension-bend, extension-twist/shear-bend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e2de0836414b3a7b07e960b236fdba9
http://hdl.handle.net/10044/1/87447
http://hdl.handle.net/10044/1/87447
Publikováno v:
Thin-Walled Structures
Two state-of-the-art analytical compression after impact (CAI) modelling approaches are presented and evaluated for the problem of thin-film buckle-driven propagation of a delamination in composite laminates. Characteristic phenomena are investigated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44554b6b2d9ccac467ae540d715d4305
Publikováno v:
Key Engineering Materials. 774:60-65
The mechanical behavior of cross-ply laminates loaded under in-plane compression containing matrix cracks and delaminations is investigated in order to study their influence on the structural stability behavior. This is done by employing a semi-analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f63e8b974e1f1bbda21bd78e1b948f5
https://doi.org/10.4028/www.scientific.net/kem.774.60
https://doi.org/10.4028/www.scientific.net/kem.774.60
Autor:
Anton Köllner, Christina Völlmecke
Publikováno v:
Composite Structures. 170:261-270
An analytical framework which incorporates damage propagation/growth into the general structural stability analysis is presented. Therefore, the conventional total potential energy approach is extended by introducing an extended total potential energ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ef4e7b54a2804402cc591fe9bd52d8e
https://doi.org/10.1016/j.compstruct.2017.01.088
https://doi.org/10.1016/j.compstruct.2017.01.088
Autor:
Christina Völlmecke, Anton Köllner
Publikováno v:
International Journal for Computational Methods in Engineering Science and Mechanics. 18:25-33
The buckling and postbuckling behavior of composite struts under uniaxial compression is investigated. A geometrically nonlinear model comprising only four generalized coordinates is applied to multi-layered struts built up of transversally isotropic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::326779e537007f6cf2e3fbfd8b2f67cc
https://doi.org/10.1080/15502287.2016.1276340
https://doi.org/10.1080/15502287.2016.1276340
The effect of pre-stress on the buckling behaviour of geometric unit cells of collinear square lattices is investigated experimentally and numerically. The geometric unit cells are manufactured using fused deposition modelling. Manufacturing strategi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bad2076446c702fd92cee1f047a1788
http://hdl.handle.net/10044/1/74399
http://hdl.handle.net/10044/1/74399