3D atomistic studies of fatigue behaviour of edge crack (001) in bcc iron loaded in mode I and II
Source abstract
Abstract
Abstract We present new results of 3D molecular dynamic simulations of a mechanical response of an edge crack (0 0 1)[1 1 0] (crack plane/crack front) in a single crystal of bcc iron cyclically loaded in tension mode I and shear mode II at room temperature. Different boundary conditions were tested for mode II. We compare fatigue behaviour of the crack (0 0 1) loaded in mode II and I with behaviour of a ductile crack ( 1 ¯ 1 0 ) [1 1 0] recently studied. The paper brings new information on micromechanism of fatigue crack growth.
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Research context
OpenAlex topics: Fatigue and fracture mechanics · Microstructure and Mechanical Properties of Steels · Hydrogen embrittlement and corrosion behaviors in metals
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