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Verfahren zur Festigkeitsbeurteilung von mehrachsig stochastisch beanspruchtem Sphäroguß und Temperguß

Method for a strength evaluation of multiaxial stochstic loaded nodular and malleable iron
: Müller, A.


Materialwissenschaft und Werkstofftechnik 26 (1995), No.8, pp.442-449 : Abb.,Lit.
ISSN: 0933-5137
Journal Article
Fraunhofer LBF ()
compression test; deformation; Druckversuch; failure behaviour; fatigue life proof; Festigkeit; Gußeisen mit Kugelgraphit; Lebensdauerabschätzung; malleable cast iron; mehrachsige Beanspruchung; multiaxial loading; Spannung; spheroidal graphite cast iron; strength; stress; Temperguß; tensile laoding; torsion; Verformung; Versagensverhalten; Zugbeanspruchung

There will be presented a method for an analytic strength evaluation of multiaxial stochastic loaded components (method of reference stress). For the failure of the investigated casted material, breaking up events which are caused by a nominal stress in the maximal stressed sectional plane are responsible and which can be described by a "reference stress". This "reference stress", which in its meaning corresponds to an equivalent stress, can be understood not only as a value related to material behavior, but takes also into account statistical aspects basing on the independence of random values. For a strength evaluation they are compared with the corresponding uniaxial nominal stress. The methodology was verified by multiaxial fatigue tests under combined tensional and torsional loading.