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- W2376937231 abstract "Due to the complexity of cross-section,the finish rolling temperature distribution is uneven and causes complex residual stress distribution in hot rolled large size H-beam.3D numerical simulation of the residual stress distribution of hot rolled H-beams after cooling and the residual stress transformation during flange cutting had been accomplished,with the simulation result of the whole rolling process being used as the initial thermal field.The residual stress appeared as tensile stress in connection area and flange and as compressive stress in web along the length direction.During the flame cutting process,tensile stress increased suddenly when the kerf arrived at the position of leg-waist connection that may cause brittle fracture of the H-beam web.The method of controlling the residual stress had been achieved through numerical simulation.The simulation results show that the distribution of residual stress could be improved with forced cooling on the out side of the flange,significant effects have been derived in the practical application." @default.
- W2376937231 created "2016-06-24" @default.
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- W2376937231 date "2010-01-01" @default.
- W2376937231 modified "2023-09-26" @default.
- W2376937231 title "Research of residual stress in hot rolled large size H-beams" @default.
- W2376937231 hasPublicationYear "2010" @default.
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