Strip shape (or flatness), which is an important characteristic of the quality of cold rolled product, is usually associated with the residual stress istribution in the strip after rolling. Non-uniform residual stress distribution, which can potentially cause the buckling of the strip and is sometimes referred as a "latent shape", is used as a characteristic of strip flatness. The model of strip flatness in cold rolling consists of couppled models of plastic deformation of the strip in a roll bite, elastic deformation of the roll stack and formation of residual stress in the strip after rolling, which are usually solved via an iterative procedure [1, 2].
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