Infrared thermography and ultrasonics to evaluate composite materials for aeronautical applications

22nd AIVELA Annual Meeting

Boccardi, S.^1 ; Boffa, N.D.^1 ; Carlomagno, G.M.^1 ; Maio, L.^1 ; Meola, C.^1 ; Ricci, F.^1

Department of Industrial Engineering, Aerospace Division, University of Naples Federico II, Via Claudio, 21, Napoli

80125, Italy^1

关键词: Aeronautical applications;    Background noise;    Carbon/epoxy;    Damaged materials;    Impact events;    Integrated use;    Lockin thermography;    Ultrasonic phased array systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/658/1/012007/pdf
DOI  :  10.1088/1742-6596/658/1/012007

来源: IOP

【 摘 要 】

The attention of this paper is focused on the suitability of two techniques: infrared thermography and ultrasonics to evaluate impact damaged carbon/epoxy specimens. The obtained results are compared by highlighting advantages and disadvantages of each technique, as well their limits in view of an integrated use. In this context, a crucial task may be to assess the extension of delamination caused by an impact event, which may ask one to guess between sound and damaged materials at the edge of the instrument background noise. To help fixing this problem, results obtained with either lock-in thermography, or an ultrasonic phased array system, are analysed with the aid of thermographic data collected during impact tests.