Evaluation of Repair Efficiency in Structures Made of Fibrous Polymer Composite Materials

• Published in: Mechanics of composite materials Vol. 50; no. 3; pp. 311 - 316
• Main Authors: Anoshkin, A. N., Vil’deman, V. E., Lobanov, D. S., Chikhachev, A. I.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-07-2014; Springer
• Subjects: Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Composites; Glass; Maintenance and repair; Materials Science; Natural Materials; Polymers; Solid Mechanics; panels with fibrous polymer composite fillers; local repair of fibrous composites; testing techniques; experimental mechanics; tension/compression tests
• ISSN: 0191-5665; 1573-8922
• DOI: 10.1007/s11029-014-9416-0

Full-scale experimental investigations into the residual strength of structurally similar elements of acoustical panels after a local repair of defects, such as through breakdown, were conducted. Local repairs without using the vacuum technology were carried out. The technology of repair consists in removing and layer-bylayer replacing the damaged layers of material with repaired ones. For comparison, undamaged and repaired sandwich panel specimens were tested in tension and compression. The specimens were produced by serial technology from a VPS-33 fiberglass prepreg. Their deformation and fracture mechanisms are analyzed, and their loading diagrams are obtained.