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Influence of changes of the bending plane position on the fatigue life
Author(s) -
Krzyżak D.,
Kurek M.,
Łagoda T.,
Sówka D.
Publication year - 2014
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201400203
Subject(s) - brass , materials science , bending , bending moment , plastic bending , stress (linguistics) , plane (geometry) , structural engineering , composite material , cyclic stress , position (finance) , neutral axis , amplitude , bending stiffness , metallurgy , physics , mathematics , copper , engineering , geometry , optics , beam (structure) , linguistics , philosophy , finance , economics
The paper concerns influence of changes of the bending plane position on the fatigue life. The obtained results were analyzed and compared with the fatigue results for oscillatory bending. The applied specimens were smooth, they had round sections, and they were made of the leaded brass CuZn40Pb2 (MO58). The results obtained under cyclic bending with the plane position change were compared with the results obtained for the specimens with the same parameters under pure oscillatory bending. A change of the bending plane position occurred every 10% fatigue life determined under pure oscillatory bending at the given amplitude of the bending moment, according to the defined fatigue characteristics. Calculated values of nominal stress in a cross section were recalculated according with cyclic material properties and values of elasto‐plastic stress were obtained.