Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-191 Konferenzveröffentlichung Tran, Thanh Ngoc, tran@fh-aachen.de; Staat, Manfred, m.staat@fh-aachen.de; Kreißig, R., Calculation of load carrying capacity of shell structures with elasto-plastic material by direct methods Proceedings of the International Conference on Material Theory and Nonlinear Dynamics. MatDyn. Hanoi, Vietnam, Sept. 24-26, 2007, 8 p. In this paper, a method is introduced to determine the limit load of general shells using the finite element method. The method is based on an upper bound limit and shakedown analysis with elastic-perfectly plastic material model. A non-linear constrained optimisation problem is solved by using Newton's method in conjunction with a penalty method and the Lagrangean dual method. Numerical investigation of a pipe bend subjected to bending moments proves the effectiveness of the algorithm. 2007 Fachbereich Medizintechnik und Technomathematik OPUS4-196 Konferenzveröffentlichung Tran, Thanh Ngoc, tran@fh-aachen.de; Staat, Manfred, m.staat@fh-aachen.de; Kreißig, R., Finite element shakedown and limit reliability analysis of thin shells A procedure for the evaluation of the failure probability of elastic-plastic thin shell structures is presented. The procedure involves a deterministic limit and shakedown analysis for each probabilistic iteration which is based on the kinematical approach and the use the exact Ilyushin yield surface. Based on a direct definition of the limit state function, the non-linear problems may be efficiently solved by using the First and Second Order Reliabiblity Methods (Form/SORM). This direct approach reduces considerably the necessary knowledge of uncertain technological input data, computing costs and the numerical error. In: Computational plasticity / ed. by Eugenio Onate. Dordrecht: Springer 2007. VII, 265 S. (Computational Methods in Applied Sciences ; 7) (COMPLAS IX. Part 1 . International Center for Numerical Methods in Engineering (CIMNE)). ISBN 978-1-402-06576-7 S. 186-189 2007 Fachbereich Medizintechnik und Technomathematik OPUS4-3583 Wissenschaftlicher Artikel Tran, Thanh Ngoc, tran@fh-aachen.de; Kreißig, R., ; Vu, Duc Khoi, ; Staat, Manfred, m.staat@fh-aachen.de Upper bound limit and shakedown analysis of shells using the exact Ilyushin yield surface 2008 12 Computer & Structures. 86 (2008) 0045-7949 1683 1695 campus http://dx.doi.org/10.1016/j.compstruc.2008.02.005 Fachbereich Medizintechnik und Technomathematik OPUS4-3609 Wissenschaftlicher Artikel Tran, Thanh Ngoc, tran@fh-aachen.de; Kreißig, R., ; Staat, Manfred, m.staat@fh-aachen.de Probabilistic limit and shakedown analysis of thin plates and shells - 2009 17 Structural safety. 31 (2009), H. 1 0167-4730 1 18 campus http://dx.doi.org/10.1016/j.strusafe.2007.10.003 Fachbereich Medizintechnik und Technomathematik OPUS4-3596 Wissenschaftlicher Artikel Staat, Manfred, m.staat@fh-aachen.de; Tran, Thanh Ngoc, tran@fh-aachen.de; Kreißig, R., Load bearing capacity of thin shell structures made of elastoplastic material by direct methods 2008 10 Technische Mechanik. 28 (2008), H. 3-4 299 309 weltweit http://www.uni-magdeburg.de/ifme/zeitschrift_tm/2008_Heft3_4/13_Staat_Kreissig_Tran.pdf Fachbereich Medizintechnik und Technomathematik