The Paton Welding Journal, 2021, №11



2021 №11 (07)

DOI of Article 10.37434/tpwj2021.11.08

2021 №11 (01)

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The Paton Welding Journal, 2021, #11, 48-52 pages

Multiscale procedure of numerical evaluation of damage and technical state of structures from fiber composite materials

O.S. Milenin, O.A. Velykoivanenko, G.P. Rozynka, N.I. Pivtorak

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

Abstract
A multiscale procedure of forecasting of stress-strain, damaged and boundary states of structures from typical fiber composite materials was developed. the procedure is based on the combination of macroscale models of describing the state of structurally inhomogeneous brittle materials and mesoscale approaches of continuing modeling of development of damage under the effect of external load. On the example of large-sized cylindrical pressure vessels from glass and carbon fiber composites, features of external load on the damage to the material and boundary state of the structure were investigated.
Keywords: composite materials, damage, boundary state, mathematical modeling, multiscale procedure

Received 13.09.2021
Accepted: 29.11.2021

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