Evaluation of impact damage effect on fatigue life of carbon fibre composites

0392740 - ÚTAM 2014 RIV RO eng J - Journal Article
Kytýř, D. - Fíla, T. - Valach, Jaroslav - Šperl, Martin
Evaluation of impact damage effect on fatigue life of carbon fibre composites.
UPB Scientific Bulletin. Roč. 75, č. 2 (2013), s. 157-164. ISSN 1454-2358
R&D Projects: GA ČR(CZ) GAP105/12/0824
Institutional support: RVO:68378297
Keywords : carbon fibre composites * impact damage * material degradation
OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Method of publishing: Open access
https://www.scientificbulletin.upb.ro/rev_docs_arhiva/full4af_644816.pdf

Carbon fibre in polyphenylene sulfide composites became popular ma- terial in aircraft industry but its fragility and low resistance against impact load- ing limits the application of these composites in aircraft primary structures. The article deals with experimental investigation of the mechanical response of dam- aged composite. Material degradation of intact and damaged specimens during fatigue tests was investigated. The changes in natural frequencies, ultrasound wave propagation and bending stiffness were chosen as damage parameters. The entire fatigue life of intact and damaged specimens was studied in the article by all the presented methods. The accuracy and reliability of assessment of damage parameters were compared. Comparison of accuracy and reliability of presented method for assessment of damage parameters is also given.
Permanent Link: http://hdl.handle.net/11104/0223710