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After participating the module, students understand and the basics of fatigue, local concept, nominal stress design, hot spot stress design, fracture mechanics, execution and quality control and the fatigue design of bridges. Because of various exercises, students are able to apply respective stress concepts and methods for analysis. As a consequence of that, participants of the seminar are specialized in analysing steel and aluminium constructions with frequently changing loads and in respective evaluations. This analysis includes the fatigue and the service strength proof regarding the design according to fracture.

Part 1: Basics about fatigue phenomes and fatigue design are presented. The focus is laid on: - Sources and types of dynamic loads, determination of representative loads, cycle counting methods, - local concept, - nominal and structural stress design and - determination of stresses by using FEA Part 2: The objective is, to teach basic knowledge about fracture mechanics and respective concepts for application. The following design methods are focused on: - design against brittle fracture - design against cracks and crack growth - determination of remaining life

composite construction Platte buckling and Steel bridges construction

Presentation within the framework of the lecture to transfer the learning outcomes Exercises in form of homework and discussions, within groups and with handouts to fill in Experiment in the context of laboratory teaching to edit issues and their solution

Schriftliche Prüfung (60 Minuten) und Studienleistung. 50% der Prüfung und 50% der Studienleistung (Projektarbeit) gehen in die Endnote ein:

EN 1993-1-9 EN 1999-1-3 FKM-Richtlinie, Bruchmechanischer Festigkeitsnachweis, VDMA Verlag GmbH, 2009 Fracture Mechanics, Fundamentals and Applications, T.L. Anderson, Taylor & Francis. 2005 Ermüdungsfestigkeit D. Radaj, Springer Verlag, 1995 Betriebsfestigkeit, Verfahren und Daten zur Bauteilberechnung, E. Haibach, Springer Verlag, 2005