Abstract :
[en] This paper shows how the design of a structure can evolve when considering a stressbased
topology optimization along with fatigue failure constraints. More precisely,
fatigue failure is added in a stress-based topology optimization Matlab code by following
the approach of the design of machine elements, i.e. based on S-N curves or
fatigue criteria. The fatigue is introduced through weel-known criteria for high-cycle
fatigue such as the Sines and Crossland criteria. The paper presents how these criteria
can be formulated for a topology optimization problem. Numerical results for
both criteria are successively compared and discussed. The character of fatigue failure
in the optimization procedure is illustrated as well as some issues that have to be
improved in future work.
Name of the research project :
Contributions to topology optimization of structural components made by additive manufacturing - PhD thesis
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