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Author

  • Manfred Staat (203) (remove)

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  • 2021 (1)
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Document Type

  • Article (124)
  • Conference Proceeding (58)
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Language

  • English (173)
  • German (30)

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Keywords

  • Finite-Elemente-Methode (16)
  • Einspielen <Werkstoff> (13)
  • shakedown analysis (8)
  • FEM (6)
  • limit analysis (5)
  • Einspielanalyse (4)
  • Limit analysis (4)
  • Shakedown (4)
  • Shakedown analysis (4)
  • Technische Mechanik (4)
  • Traglast (4)
  • Traglastanalyse (4)
  • shakedown (4)
  • ratchetting (3)
  • Analytischer Zulaessigkeitsnachweis (2)
  • Bruchmechanik (2)
  • Druckbeanspruchung (2)
  • Druckbehälter (2)
  • Druckbelastung (2)
  • Einspiel-Analyse (2)
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Institute

  • Fachbereich Medizintechnik und Technomathematik (201)
  • IfB - Institut für Bioengineering (161)
  • Fachbereich Chemie und Biotechnologie (2)
  • Fachbereich Maschinenbau und Mechatronik (1)

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Double plate osteosynthesis of proximal ulna fractures: biomechanical and clinical results (2016)
Kilian Wegmann ; Michael Hackl ; Manfred Staat ; Katharina Mayer ; Lars-Peter Müller
An algorithm for shakedown analysis of structure with temperature dependent yield stress (2004)
Duc-Khoi Vu ; Manfred Staat
This work is an attempt to answer the question: How to use convex programming in shakedown analysis of structures made of materials with temperature-dependent properties. Based on recently established shakedown theorems and formulations, a dual relationship between upper and lower bounds of the shakedown limit load is found, an algorithmfor shakedown analysis is proposed. While the original problem is neither convex nor concave, the algorithm presented here has the advantage of employing convex programming tools.
Analysis of pressure equipment by application of the primal-dual theory of shakedown (2007)
Duc Khoi Vu ; Manfred Staat ; Ich Thinh Tran
Shakedown analysis of structures made of materials with temperature-dependent yield stress (2007)
Duc Khoi Vu ; Manfred Staat
Percutaneous Vertebroplasty: A Review of Two Intraoperative Complications (2008)
Christianne Vant ; Manfred Staat ; Gamal Baroud
Virtual Needle Simulation with Haptics for Regional Anaesthesia (2010)
Sebastian Ullrich ; Oliver Grottke ; Rolf Rossaint ; Manfred Staat ; Thomas M. Deserno ; Torsten Kuhlen
Direct plastic structural design by chance constrained programming (2018)
Trình Ngọc Trần ; Hermann G. Matthies ; Georgios Eleftherios Stavroulakis ; Manfred Staat
We propose a stochastic programming method to analyse limit and shakedown of structures under random strength with lognormal distribution. In this investigation a dual chance constrained programming algorithm is developed to calculate simultaneously both the upper and lower bounds of the plastic collapse limit or the shakedown limit. The edge-based smoothed finite element method (ES-FEM) using three-node linear triangular elements is used.
Calculation of load carrying capacity of shell structures with elasto-plastic material by direct methods (2007)
Thanh Ngoc Tran ; Manfred Staat ; R. Kreißig
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.
Finite element shakedown and limit reliability analysis of thin shells (2007)
Thanh Ngoc Tran ; Manfred Staat ; R. Kreißig
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
Shakedown analysis of Reissner-Mindlin plates using the edge-based smoothed finite element method (2014)
Thanh Ngoc Tran ; Manfred Staat
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