応力・熱負荷連成による熱延ワークロール表層部の応力・変位の数値解析

概要

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In order to calculate the stress and strain states in the subsurface layer of work roll for hot rolling, the numerical analysis model for stresses and strains was derived under the thermal elastic-plastic and isotropic hardening conditions. A new numerical analysis model for temperature was also proposed to estimate the steady state of heating and cooling. Then, the stress, residual stress and residual displacement in the subsurface layer of work roll, where the pressure and thermal loads were applied, were calculated by coupled analysis of these two models. It has been found that the compressive stresses σ_<XX> (absolute values of σ_<XX>) at the IMR side are larger than those at the WR side, and that the residual stresses (σ_<XX>)_r and the residual displacements (U_X)_r at the WR surface increse with increase of the friction coefficients μ_B between WR and IMR.
社団法人日本鉄鋼協会の論文
1996-07-01