Verfahren zur Festigkeitsbeurteilung von mehrachsig stochastisch beanspruchtem Sphäroguß und Temperguß

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.