FG Baustatik, Stahlbau, FEM
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- 2016 (2) (remove)
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- Einspielen (1)
- Lebensdaueranalysen (1)
- Ratcheting (1)
- Shakedown (1)
- cyclic loading (1)
- limit load (1)
- plasticity (1)
- progressive deformation (1)
- ratcheting (1)
- shakedown (1)
Institute
Es wird Ratcheting von Werkstoffermüdung abgegrenzt und beides in den Zusammenhang von rechnerischen Lebensdauer-Nachweisen gestellt. Struktur-Ratcheting wird detailliert anhand eines Zweistab-Modells erläutert. Die Rolle der Werkstoff-Verfestigung wird exemplarisch durch eingebettete Animationen für die Endzustände "elastisches Einspielen" und "plastisches Einspielen" aufgezeigt.
For a life prediction of structures subjected to variable loads, frequently encountered in mechanical and civil engineering, the cyclically accumulated deformation and the elastic-plastic strain ranges are required. The Simplified Theory of Plastic Zones (STPZ) is a direct method which provides the estimates of these and all other mechanical quantities in the state of elastic and plastic shakedown. The STPZ is described in detail, with emphasis to the fact that not only scientists but engineers working in practice and advanced students are able to get an idea of the possibilities and limitations of the STPZ. Numerous illustrations and examples are provided to support your understanding.