@inproceedings{LedeckyCiupackPasternaketal., author = {Ledecky, Lukas and Ciupack, Yvonne and Pasternak, Hartmut and Geßler, Achim and Feldmann, Markus and Kasper, Yann and Albiez, Matthias and Ummenhofer, Thomas}, title = {Untersuchungen zur Erm{\"u}dungsrisssanierung mit aufgeklebten CFK-Lamellen im Stahlbau}, series = {110 Jahre DASt und 21. DASt-Forschungskolloquium an der Technischen Universit{\"a}t Kaiserslautern}, booktitle = {110 Jahre DASt und 21. DASt-Forschungskolloquium an der Technischen Universit{\"a}t Kaiserslautern}, publisher = {Deutscher Ausschuß f{\"u}r Stahlbau DASt}, address = {D{\"u}sseldorf}, isbn = {978-3-941687-27-1}, pages = {116 -- 121}, language = {de} } @misc{CiupackLedeckyKasperetal., author = {Ciupack, Yvonne and Ledecky, Lukas and Kasper, Yann and Geßler, Achim and Albiez, Matthias and Pasternak, Hartmut and Ummenhofer, Thomas and Feldmann, Markus}, title = {Strengthening of steel structures with fatigue cracks using adhesively bonded non-prestressed and prestressed CFRP lamellas}, series = {The 13th International Conference MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES, 16-17 May 2019, Vilnius, Lithuania Vilnius Gediminas Technical University}, journal = {The 13th International Conference MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES, 16-17 May 2019, Vilnius, Lithuania Vilnius Gediminas Technical University}, editor = {Juozapaitis, Algirdas and Daniūnas, Alfonsas and Juknevičius, Linas}, isbn = {978-609-476-197-3}, issn = {2029-9915}, doi = {10.3846/mbmst.2019.068}, pages = {252 -- 260}, abstract = {In comparison to classic strengthening methods of fatigue-damaged steel structures, adhesively bonded CFRP lamellas show several advantages. Compared to bolted reinforcement measures and the drilling of the crack tip, crosssectional weakening is avoided. Heat-induced, negatively acting residual stresses and distortions, usually occurring during repair welding, can also be excluded. Therefore, the effectiveness of adhesively bonded CFRP lamellas to enhance the remaining lifetime of fatigue damaged steel structures is examined in a German research project. Selected results are presented in this paper. To characterize the steel, CFRP and adhesive materials, different tests on small scale specimens are carried out. With the help of fatigue tests on CT-samples the remaining fatigue lifetimes of specimens strengthened with adhesively bonded CFRP lamellas is compared to the remaining lifetimes of specimens strengthened by established methods such as drilling the crack tip and repair welding. Based on the evaluation of the crack propagation after the rehabilitation measures, the great potential of adhesively bonded CFRP reinforcements can be deduced. By prestressing the lamellas, the remaining lifetime can generally be increased further. The combination of adhesively bonded CFRP lamellas together with established rehabilitation methods shows a particularly high positive influence on the remaining lifetime of the CT-specimens.}, language = {en} } @misc{FeldmannUmmenhoferGessleretal., author = {Feldmann, Markus and Ummenhofer, Thomas and Geßler, Achim and Pasternak, Hartmut and Kasper, Yann and Albiez, Matthias and Ciupack, Yvonne and Ledecky, Lukas}, title = {Einsatz geklebter CFK-Lamellen zur Verst{\"a}rkung erm{\"u}dungsgesch{\"a}digter Stahlkonstruktionen}, series = {Schweissen und Schneiden: Fachzeitschrift f{\"u}r Schweißen und verwandte Verfahren}, journal = {Schweissen und Schneiden: Fachzeitschrift f{\"u}r Schweißen und verwandte Verfahren}, number = {11}, issn = {0036-7184}, pages = {738 -- 745}, language = {de} } @misc{KasperAlbiezCiupacketal., author = {Kasper, Yann and Albiez, Matthias and Ciupack, Yvonne and Geßler, Achim and Ummenhofer, Thomas and Pasternak, Hartmut and Feldmann, Markus}, title = {Verst{\"a}rkung von erm{\"u}dungsbeanspruchten Stahlbauteilen mit aufgeklebten CFK-Lamellen - Teil 1: Grundlagen}, series = {Bauingenieur}, volume = {95}, journal = {Bauingenieur}, number = {3}, issn = {0005-6650}, pages = {79 -- 84}, language = {de} } @misc{KasperAlbiezCiupacketal., author = {Kasper, Yann and Albiez, Matthias and Ciupack, Yvonne and Geßler, Achim and Ummenhofer, Thomas and Pasternak, Hartmut and Feldmann, Markus}, title = {Verst{\"a}rkung von erm{\"u}dungsbeanspruchten Stahlbauteilen mit aufgeklebten CFK-Lamellen - Teil 2: Experimentelle Rissfortschrittsuntersuchungen}, series = {Bauingenieur}, volume = {95}, journal = {Bauingenieur}, number = {5}, issn = {0005-6650}, pages = {166 -- 173}, language = {de} } @misc{KasperAlbiezUmmenhoferetal., author = {Kasper, Yann and Albiez, Matthias and Ummenhofer, Thomas and Mayer, Christoph and Meier, Tobias and Choffat, Fabien and Ciupack, Yvonne and Pasternak, Hartmut}, title = {Application of toughened epoxy-adhesives for strengthening of fatigue-damaged steel structures}, series = {Construction and Building Materials}, volume = {275}, journal = {Construction and Building Materials}, issn = {0950-0618}, doi = {10.1016/j.conbuildmat.2020.121579}, pages = {15}, language = {en} } @misc{KasperAlbiezUmmenhoferetal., author = {Kasper, Yann and Albiez, Matthias and Ummenhofer, Thomas and Ciupack, Yvonne and Ledecky, Lukas and Pasternak, Hartmut and Geßler, Achim and Feldmann, Markus}, title = {Application of carbon fibre composite materials for the rehabilitation of fatigue damaged steel structures}, series = {Advances in engineering materials, structures and systems : innovations, mechanics and applications : proceedings of the 7th International Conference on Structural Engineering, Mechanics, and Computation (SEMC 2019), September 2-4, 2019, Cape Town, South Africa}, journal = {Advances in engineering materials, structures and systems : innovations, mechanics and applications : proceedings of the 7th International Conference on Structural Engineering, Mechanics, and Computation (SEMC 2019), September 2-4, 2019, Cape Town, South Africa}, editor = {Zingoni, Alphose}, publisher = {Taylor \& Francis Group}, address = {London}, isbn = {978-1-138-38696-9}, pages = {2148 -- 2153}, language = {en} } @misc{CiupackPasternakGessleretal., author = {Ciupack, Yvonne and Pasternak, Hartmut and Geßler, Achim and Feldmann, Markus and Kasper, Yann and Albiez, Matthias and Ummenhofer, Thomas}, title = {Repair of Fatigue Cracked CT-specimens Using Adhesively Bonded CFRP Lamellas}, series = {27th Annual International Conference on Composites / Nano Engineering ICCE-27}, journal = {27th Annual International Conference on Composites / Nano Engineering ICCE-27}, pages = {2}, language = {en} }