The influence of technological defects on the mechanical behavior of CFRP during buckling under compression based on DIC data and acoustic emission
Author(s): |
Stanislav Slovikov
Dmitry Sergeevich Lobanov Ekaterina Chebotareva Valeria Melnikova |
---|---|
Medium: | journal article |
Language(s): | English |
Published in: | Frattura ed Integrità Strutturale, 17 April 2024, n. 69, v. 18 |
Page(s): | 60-70 |
DOI: | 10.3221/igf-esis.69.05 |
Abstract: |
The research focuses on examining the impact of technological defects, specifically "dry-spot" and "wrinkles," on the mechanical behavior and buckling resistance of structural composites. The investigation of the buckling phenomenon was carried out through a compression test on a thin plate fabricated from carbon-fiber-reinforced polymer (CFRP) laminate. This test was performed using a specialized fixture designed in accordance with ASTM 3410 standard. For the analysis, the study employed a three-dimensional digital optical system, Vic-3D, in conjunction with the AMSY-6 acoustic emission system. The research showcases findings from acoustic emission signals that verify the shear-based mechanism of buckling in plates constructed from CFRP featuring "dry-spot" type defects. In the case of "wrinkles" defects, it was observed that transverse shear transpires at the stress concentration points created by the "excess" layers. |
- About this
data sheet - Reference-ID
10776327 - Published on:
29/04/2024 - Last updated on:
29/04/2024