TY JOUR TI Reversible and irreversible changes in the properties of polymer materials during full-scale climatic aging KW polymer materials KW epoxy polymers KW deformation curves KW damage accumulation KW fractal analysis KW minimal coverage method JO Smart composite in construction AU Nizin, D.R. AU Nizina, T.A. AU Selyaev, V.P. AU Kanaeva, N.S. PY 2022 IS 3 PB Yaroslavl State Technical University