Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and Buildings1815-52352587-8700Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)10914Research ArticleMODELS OF CREEP AND RELAXATION WITH USING OF FRACTIONAL DERIVATIVESErokhinS Vkabrus@mail.ru150620146353912092016Copyright © 2016, Structural Mechanics of Engineering Constructions and Buildings2016Creep and relaxation models based on fractional derivatives are submitted. Models of parameter determination are described. It allows predicting system behavior.reeprelaxationfractional derivativesползучестьрелаксацияпроизводные дробного порядка