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Organisationseinheit der BAM
- 9 Komponentensicherheit (40)
- 9.4 Integrität von Schweißverbindungen (39)
- 5 Werkstofftechnik (6)
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- 8 Zerstörungsfreie Prüfung (3)
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- 4 Material und Umwelt (2)
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Paper des Monats
- ja (1)
Eingeladener Vortrag
- nein (8)
The Topic of the presentationis a discussion on defects which can cause failure in cyclically loaded metallic components. Although also touching Features such as material defects such as pores or micro-shrinkages, etc. and geometric defects such as surface roughness and secondary notches (which are not considered in the design process) which origin in manufacturing, and others the presentation concentrates on non-metallic inclusions. It is prefaced by an introduction to the life cycle of a fatigue crack from initiation up to fracture. Special emphasis is put on the fact that only cracks which are not arrested during one of their distinct Propagation stages can grow to a critical size.