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Auswirkung von Korrosion und veränderlicher mechanischer Spannung auf das Schwingungsrißverhalten von Bauteilen
Author(s) -
Spähn Heinz
Publication year - 1980
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330520202
Subject(s) - corrosion , corrosion fatigue , materials science , limiting , structural engineering , composite material , forensic engineering , engineering , mechanical engineering
Effect of corrosion and fluctuating mechanical stress on the fatigue properties of construction units . Considerable damage is still being caused by fatigue corrosion resulting from fluctuating stresses in construction units, even though such a source of damage has been known for more than half a century. More than 10% of the total corrosion damage encountered in chemical engineering stems from this type of transcrystalline crack. The particular difficulties met with in attempts to guard against such material damage rest, on the one hand, in the multiplicity of factors influencing the loss of strength and, on the other, in the problems associated with the applicability of laboratory results to the behaviour of constructional units. In this paper the influence of corrosion medium, limiting value of stress cycle endured, thickness of construction unit, frequency, mean stress and crack‐propagation characterization on stability towards vibration corrosion is dealt with and shows the design engineer how the relevant data concerning component behaviour are to be handled.