engleski

Numerical estimation of fatigue life to crack initiation in metal structures

This paper deals with numerical aspects of estimation of fatigue life in metal structures, on the basis of calculated strains and stresses, as well as their amplitude and main values, due to cyclic loading of the structure. The material behaviour can be described by the four, so called, fatigue properties. Computer program LifeNISA is developed as a module which estimates fatigue life, on the basis of previously performed linear or materially non-linear static calculations. An example of its implementation is also given.

Estimation of fatigue life; numerical methods; metal structures; finite element method

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