Abstract
An elastic-plastic-creep constitutive model is developed for describing the asymmetric deformation behaviour of cast irons under tensile and compressive loading conditions for a wide range of temperatures. The model is implemented into two commercial finite element packages, PERMAS and ABAQUS, using FORTRAN subroutines. The model is then employed for representation of the deformation behaviour of a flake cast iron under isothermal monotonic and thermomechanical cyclic loading conditions. Good agreement between the model representation and experimental data is obtained. Ultimately, the developed model is employed for assessment of the stress state at critical locations of a diesel engine cylinder head subjected to a severe thermal-shock engine test.
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