Applying topology optimization under fatigue loading

In this study, an algorithm is developed for topology optimization under fatigue loading conditions. This algorithm is developed under the finite element analysis software ANSYS.Topology optimization is used to obtain the best material distribution for getting the maximum natural frequency or minimum compliance while decreasing volume of a mechanical part to possible minimum value.In fact machine parts are operated under the action of repeated or fluctuating stresses. Hence, the design must be under fatigue loadings for correctly simulating the real cases.Number of studies containing topology optimization according to fatigue loading is limited in literature. Previously developed topology optimization algorithm for static loadings is adapted to fatigue loading in this thesis. The case studies in the literature are compared with results of this study also the statically loaded cases are compared with fatigue loaded cases.