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ANALYSIS OF A CLASS RIGID-PLASTIC ROLLING PROBLEMS BY A MODIFIED SECANT-MODULUS METHODS

T. A. ANGELOV

Institute of Mechanics, Bulgarian Academy of Sciences, "Acad.G.Bonchev" Street, Block 4, 1113 Sofia, Bulgaria

https://doi.org/10.1142/S1758825112001403Cited by:1 (Source: Crossref)

Abstract

For a class of steady-state rolling problems, with rigid-plastic, slightly compressible, strain-rate-dependent material model and with unilateral contact and nonlocal Coulomb's friction, variational inequality formulations are derived. A modification of the secant-modulus method is proposed, its convergence is proved and existence and uniqueness results are obtained. An algorithm, combining the finite element and the modified secant-modulus method, is proposed and an illustrative rolling problem is solved.

Keywords:

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