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Latin American Journal of Solids and Structures

versão impressa ISSN 1679-7817versão On-line ISSN 1679-7825

Resumo

KIM, Dong-Keon  e  KIM, Jinkyu. A Two-Surface Viscoplastic Model for the Structural Steel. Lat. Am. j. solids struct. [online]. 2017, vol.14, n.6, pp.1000-1016. ISSN 1679-7825.  https://doi.org/10.1590/1679-78253572.

As extension of the previous two-surface model in plasticity, a two-surface model for viscoplasticity is presented herein. In order to validate and investigate the performance of the proposed model, several numerical simulations are undertaken especially for structural steel under monotonic and cyclic loading cases, where experimental results and numerical results from the rate dependent kinematic hardening model are also provided for the reference. For all the cases studied, the proposed model can appropriately account for the rate-effects in both maximum stress and hysteretic shapes.

Palavras-chave : Two-surface model; Viscoplasticity; Numerical simulation.

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