Measurement of Strength and Fracture Load of Weathered Samples of Polymer Composite Materials

• Published in: Polymer science. Series D, Glues and sealing materials Vol. 17; no. 2; pp. 302 - 310
• Main Authors: Startsev, O. V., Veligodsky, I. M., Medvedev, I. M., Gladkikh, A. V., Gorbovets, M. A.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 2024; Springer Nature B.V
• Subjects: Aging (materials); Bend strength; Carbon fiber reinforced plastics; Carbon-epoxy composites; Chemistry; Chemistry and Materials Science; Coefficient of variation; Compressive strength; Fiber reinforced polymers; Fiberglass; Glass fiber reinforced plastics; Glass-epoxy composites; Polymer matrix composites; Polymer Sciences; Surface layers; Thickness measurement; Weathering; carbon fiber; fiberglass; strength; fracture load; sample thickness; surface topography; weathering; destruction
• ISSN: 1995-4212; 1995-4220
• DOI: 10.1134/S1995421224700503

The aging of a series of aviation fiberglass and carbon fiber reinforced plastics based on epoxy binders after three years of exposure in different climatic zones was studied in terms of changes in compressive and bending strength limits. It has been shown that the destruction of the surface layer of exposed samples reduces the accuracy of measuring their thickness and significantly increases the scatter of the measured parameters. The variation coefficients of strength indicators and fracture loads are compared for the studied materials.