Vol.14, No.3, 2014, pp.177–183
UDC  539.431

The paper presents and discusses new concepts about multiaxial cycle counting under multiaxial variable amplitude loading using the SSF equivalent shear stress. The few multiaxial cycle counting methods presented in literature are based in the rainflow methodology. However, this work presents a non-rainflow methodology (virtual cycle counting) to characterize multiaxial loading cycles under variable amplitude conditions.

Keywords: multiaxial fatigue, fatigue, accumulated damage, variable amplitude loading, virtual cycle counting, loading blocks