The formation of cracks as a result of plastic flow

1954/05/06 by A. N. Stroh · 657 citations
Engineering · Materials Science · #Alloy #Composite material #Crack closure #Crack tip opening displacement #Engineering #Flow (mathematics) #Flow stress #Forensic engineering #Fracture mechanics #Geotechnical and Geomechanical Engineering #High-Velocity Impact and Material Behavior #Materials science #Mechanics #Microstructure and mechanical properties #Physics #Plasticity #Stress (linguistics) #Structural engineering

paper · doi:10.1098/rspa.1954.0124

published in Proceedings of the Royal Society of London A Mathematical and Physical Sciences 223(1154), 404-414 (Royal Society)

openalex publication_date 1954/05/06 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Abstract The stresses round a piled-up group of dislocations are investigated with reference to the initiation of a crack. A crack should form when the group consists of about 1000 dislocations piled up under a stress of the magnitude occurring in a cold-worked metal. The stress system due to the crack is obtained. The crack will have a stable equilibrium length, but this length is likely to be determined by the amount of plastic flow which takes place round the tip of the crack.

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