Abstract: A study of low-cycle fatigue
behavior of 12CrMoV dual phase steel was carried out by
experiment and finite element analysis. The low-cycle fatigue
test under strain control with three different strain amplitudes
for five kinds of specimens with different M (martensite) content
was carried out on MTS-880. Some of the experimental results
were analysed by finite element method. The influence of
microstructures on low-cycle fatigue behavior in dual phase
steel was discussed from the view of accumulative plastic
strain.
Key words:
Dual phase steel Low-cycle fatigue Cyclic plastic Finite element
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