2021 №03 (01) DOI of Article
2021 №03 (03)

Technical Diagnostics and Non-Destructive Testing 2021 #03
Technical Diagnostics and Non-Destructive Testing #3, 2021, pp. 14-18

Multiscale procedure of numerical assessment of damage rate and technical state of structures from fibrous materials

O.S. Milenin, O.A. Velikoivanenko, 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

РA multiscale procedure was developed for prediction of stress-strain, damaged and boundary states of structures from typical fibrous composite materials. The methodology is based on a combination of macroscale models for describing the state of structurally inhomogeneous brittle materials and mesoscale approaches of continuous modeling of damage development under the impact of external loading. The features of the impact of external loading on material damage level and boundary state of structures were studied in the case of large-sized cylindrical pressure vessels from glass and carbon fibre-reinforced composites. Ref. 11, Fig. 5.
Keywords: composite materials, damage rate, boundary state, mathematical modeling, multiscale procedure

Received: 13.09.2021


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