Zeige Ergebnisse 331 - 360 von 371
2012
Rolfes R, Schaumann P, Lohaus L, Schlurmann T, Achmus M, Huhn H. Verbundprojekt: Ganzheitliches Dimensionierungskonzept für OWEA-Tragstrukturen anhand von Messungen im Offshore-Testfeld alpha ventus: GIGAWIND alpha ventus ; Abschlussbericht 2008 - 2012 ; 1. Forschungsprojekt: Ganzheitliches Dimensionierungskonzept für OWEA-Tragstrukturen hinsichtlich Lasten, Langlebigkeit, Gründung und Gesamtstrukturmodellen ; Berichtszeitraum: 01.03.2008 - 30.04.2012 ; 2. Forschungsprojekt: Technische Zuverlässigkeit von OWEA-Tragstrukturen ; Berichtszeitraum: 01.05.2008 - 30.04.2012. Hannover: Leibniz Universität Hannover, 2012.
Rolfes R, Rotert D. Vorlesung Baustatik: Wintersemester 2012/2013. 2012.
Rolfes R, Rotert D. Vorlesung Stabtragwerke: Wintersemester 2012/2013. 2012.
Rustemeier J, Grießmann T, Rolfes R. Underwater sound mitigation of bubble curtains with different bubble size distributions. Proceedings of Meetings on Acoustics. 2012 Dez 6;17:070055. doi: 10.1121/1.4772936
Vogler M, Rolfes R, Camanho PP. Modeling the inelastic deformation and fracture of polymer composites - Part I: Plasticity model. Mechanics of materials. 2012 Dez 20;59:50-64. doi: 10.1016/j.mechmat.2012.12.002
2011
Häckell MW, Haake G, Rolfes R. Automated system identification and validation of numerical models of offshore wind turbines as basis for SHM-analysis. in Structural Health Monitoring 2011: Condition-Based Maintenance and Intelligent Structures - Proceedings of the 8th International Workshop on Structural Health Monitoring. 2011. S. 2149-2156. (Structural Health Monitoring 2011: Condition-Based Maintenance and Intelligent Structures - Proceedings of the 8th International Workshop on Structural Health Monitoring).
Kriegesmann B, Rolfes R, Hühne C, Kling A. Fast probabilistic design procedure for axially compressed composite cylinders. Composite structures. 2011 Jun 29;93(12):3140-3149. doi: 10.1016/j.compstruct.2011.06.017
Rolfes R. Definitionsprojekt zum Testzentrum Tragstrukturen: Schlussbericht ; Berichtszeitraum: 01.10.2009 - 31.07.2010. Hannover: Leibniz Universität Hannover, 2011.
Rolfes R, Vogler M, Czichon S, Ernst G. Exploiting the structural reserve of textile composite structures by progressive failure analysis using a new orthotropic failure criterion. Computers and Structures. 2011 Okt 14;89(11-12):1214-1223. doi: 10.1016/j.compstruc.2010.09.003
Tsakonakis A, Rolfes R. Konzeptstudie und Entwicklung einer neuartigen Gründungstechnologie unter Einbeziehung von Errichtungslogistik (Teilprojekt 1) und Schallschutz (Teilprojekt 2): Abschlussbericht zum Forschungsvorhaben ; Berichtszeitraum: 01.10.2009 - 30.04.2011. Hamburg [u.a.]: Leibniz Universität Hannover, 2011. doi: https://doi.org/10.2314/GBV:717162737
Zerbst S, Rolfes R, Haase KH, Knops M. Novel Sensor Concept for Monitoring of Wind Turbine Blades. in Structural Health Monitoring 2011: Condition-Based Maintenance and Intelligent Structures - Proceedings of the 8th International Workshop on Structural Health Monitoring. 2011. S. 2157-2164. (Structural Health Monitoring 2011: Condition-Based Maintenance and Intelligent Structures - Proceedings of the 8th International Workshop on Structural Health Monitoring).
2010
Andrew Swartz R, Lynch JP, Zerbst S, Sweetman B, Rolfes R. Structural monitoring of wind turbines using wireless sensor networks. Smart structures and systems. 2010 Apr 25;6(3):183-196. doi: 10.12989/sss.2010.6.3.183
Czichon S, Zimmermann K, Middendorf P, Vogler M, Rolfes R. Three-dimensional stress and progressive failure analysis of ultra thick laminates and experimental validation. Composite structures. 2010 Nov 24;93(5):1394-1403. doi: 10.1016/j.compstruct.2010.11.009
Hansen M, Rolfes R, Schaumann P, Schmidt B. Energiegewinnung auf hoher See: Sicherheit und Zuverlässigkeit von Offshore-Windenergieanlagen. AlumniCampus. 2010;2010(5).
Kriegesmann B, Rolfes R, HÜhne C, Teßmer J, Arbocz J. Probabilistic design of axially compressed composite cylinders with geometric and loading imperfections. International Journal of Structural Stability and Dynamics. 2010 Okt;10(4):623-644. doi: 10.1142/S0219455410003658
Kriegesmann B, Rolfes R, Hühne C, Kling A. Probabilistic Second-Order Third-Moment Approach for Design of Axially Compressed Composite Shells. in 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2010. 2010-2534. (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference). doi: https://doi.org/10.2514/6.2010-2534
Krüger H, Rolfes R. A Physically Motivated and Layer-based Fatigue Concept for Fiber-Reinforced Plastics. in Proceedings of the 10th International Conference on Computational Structures Technology, CST 2010. Band 93. Civil-Comp Press. 2010 doi: doi:10.4203/ccp.93.79
Nasdala L, Kempe A, Rolfes R. The Molecular Dynamic Finite Element Method (MDFEM). Computers, Materials and Continua. 2010;19(1):57-104. doi: doi:10.3970/cmc.2010.019.057
Rolfes R, Czichon S, Vogler M, Jansen E. Simulating the effect of porosities on stiffness and strength of composite materials. in Proceedings of the 10th International Conference on Computational Structures Technology, CST 2010. Band 93. Civil-Comp Press. 2010 doi: doi:10.4203/ccp.93.272
Schmidt B, Hansen M, Schaumann P, Rolfes R. Energiegewinnung auf hoher See: Sicherheit und Zuverlässigkeit von Offshore-Windenergieanlagen. Unimagazin - Forschungsmagazin der Universität Hannover. 2010;2010(03/04).
Vogler M, Ernst G, Rolfes R. Invariant Based Transversely-Isotropic Material and Failure Model for Fiber-Reinforced Polymers. Computers, Materials and Continua. 2010;16(1):25-50. doi: doi:10.3970/cmc.2010.016.025
2009
Ernst G, Vogler M, Hühne C, Rolfes R. Multiscale progressive failure analysis of textile composites. Composites science and technology. 2009 Sep 17;70(1):61-72. doi: 10.1016/j.compscitech.2009.09.006
Haake G, Rolfes R, Schaumann P, Huhn H, Schlurmann T, Lohaus L et al. Research on support structures in the german offshore wind farm alpha ventus. in European Wind Energy Conference and Exhibition 2009, EWEC 2009. 2009. S. 4148-4154. (European Wind Energy Conference and Exhibition 2009, EWEC 2009).
Hühne C, Zerbst AK, Kuhlmann G, Steenbock C, Rolfes R. Progressive damage analysis of composite bolted joints with liquid shim layers using constant and continuous degradation models. Composite structures. 2009 Jun 9;92(2):189-200. doi: 10.1016/j.compstruct.2009.05.011
2008
Hühne C, Rolfes R, Breitbach E, Teßmer J. Robust design of composite cylindrical shells under axial compression: Simulation and validation. Thin-walled structures. 2008 Jun 2;46(7-9):947-962. doi: 10.1016/j.tws.2008.01.043
Rolfes R, Ernst G, Vogler M, Hühne C. Material and Failure Models for Textile Composites. in Camanho PP, Davila CG, Pinho ST, Remmers JJC, Hrsg., Mechanical Response of Composites. Springer Netherlands. 2008. S. 27-56. (Computational Methods in Applied Sciences). doi: 10.1007/978-1-4020-8584-0_2
2007
Reetz J, Gerasch WJ, Rolfes R. A method for structural health monitoring of offshore wind turbines. in Proceedings of the 2nd International Operational Modal Analysis Conference, IOMAC 2007. Center for Industrial Production, Aalborg University and Design Society, University of Strathclyde. 2007. (Proceedings of the 2nd International Operational Modal Analysis Conference, IOMAC 2007).
Rolfes R, Zerbst S, Haake G, Reetz J, Lynch JR. Integral SHM-System for Offshore Wind Turbines Using Smart Wireless Sensors. in Chang F-K, Hrsg., Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. DEStech Publications Inc. 2007. S. 1889-1896. (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007).
Rolfes R. Klausuraufgabensammlung für die Kurse: Grundlagen statisch unbestimmter Tragwerke, Stabtragwerke, Flächentragwerke, Nichtlineare Statik der Stab- und Flächentragwerke. 2007.
Rolfes R, Gerasch W-J, Rotert D. Vorlesung Tragwerksdynamik. 2007.
