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THE DEVELOPMENT OF STRESSES AND THEIR DISTRIBUTION IN TWO‐PHASE ALLOYS DURING CYCLIC LOADING
Author(s) -
Zhonghua Li,
Yimin Li,
Jinghua Luo
Publication year - 1993
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1993.tb00119.x
Subject(s) - materials science , cyclic stress , phase (matter) , stress (linguistics) , hydrostatic stress , hydrostatic equilibrium , component (thermodynamics) , structural engineering , finite element method , composite material , stress–strain curve , plasticity , deformation (meteorology) , thermodynamics , engineering , linguistics , chemistry , philosophy , physics , organic chemistry , quantum mechanics
A finite element program calculates the cyclic behaviour of the individual component phases of a multiphase material using a master curve observed in uniaxial cyclic stress tests. The fatigue behaviour of the two‐phase alloys was characterized by visualizing the evolution of the phase stress (denoted by an average effective stress and an hydrostatic stress) during cyclic loading. The evolution procedure shows a unique fatigue behaviour of the in situ component phases, which differs from that observed in uniaxial or multiaxial fatigue tests of the single phase material. The fatigue damage on a microstructural scale was identified by the distributions of the plastic strain accumulated during cyclic loading and the stress triaxility in the component phases.