Structural health monitoring of an adhesively bonded CFRP aircraft fuselage by ultrasonic Lamb Waves

Abstract

The aviation industry faces the challenge of offering aircraft that are lighter, more economical, and safer. One of the solutions is to increase the use of composites. For these materials, adhesive bonding has proven to be the appropriate joining technology. To check these adhesive joints, costly and time-consuming maintenance measures are carried out. An intelligent Structural Health Monitoring (SHM) system can extend these intervals and allow the use of a predictive maintenance system. This paper describes the method of Ultrasonic Lamb Waves for monitoring a adhesively bonded Carbon Fiber Reinforced Polymer (CFRP) aircraft fuselage. Prior to this, the production of a segment of a fuselage and the characterization of the materials (CFRP and adhesive) is shown. Afterwards the method of Ultrasonic Lamb Waves with the use of piezoelectric transducers and signal processing based on the Reconstruction Algorithm for Probabilistic Inspection of Damage (RAPID) algorithm are explained. At the end, the experimental evaluation of an undamaged and a damaged fuselage structure is done. The results have shown the possibility of RAPID algorithm for damage detection on adhesive. An outlook on future work is given.

Keywords

Structural health monitoring damage detection ultrasonic Lamb Waves RAPID (reconstruction algorithm for the probabilistic inspection of damage)adhesive bonding structural integrity aviation aircraft structure

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References

Soutis

Introduction. In: Polymer composites in the aerospace industry. Oxford: Elsevier, 2015, pp. 1–18.

Silva

LFMD.

Handbook of adhesion technology. New York NY: Springer Science Business Media LLC, 2018.

Habenicht

Kleben. Grundlagen, Technologien, Anwendungen. Springer Berlin Heidelberg, Berlin, Heidelberg, 2009.

Giurgiutiu

Structural health monitoring (SHM) of aerospace composites. In: Polymer composites in the aerospace industry. Oxford: Elsevier, 2015, pp. 449–507.

Weiland

Sadeghi

Thomalla

, et al. Analysis of back-face strain measurement for adhesively bonded single lap joints using strain gauge, digital image correlation and finite element method. Int J Adhes Adhes 2020; 97: 102491.

Hesser

Markert

Guided wave-based damage detection in solids using computational intelligence. Proc Appl Math Mech 2018; 18: 1–2.

Chang

F-K

Lin

US 6,370,964, 1998.

Pohl

Mook

SHM of CFRP-structures with impedance spectroscopy and Lamb waves. Int J Mech Mater Des 2010; 6: 53–62.

Eckstein

Fritzen

Bach

, et al. Monitoring of Omega-Stringer Stiffened CFRP Structures by Acousto Ultrasonics, In: Conference: 5th European Workshop an Structural Health Monitoring. 855–860 (see also:https://www.researchgate.net/publication/290902849_Monitoring_of_omega-stringer_stiffened_CFRP_structures_by_acousto_ultrasonics), 2010.

10.

Boukabache

Escriba

Fourniols

J-Y.

Toward smart aerospace structures: design of a piezoelectric sensor and its analog interface for flaw detection. Sensors (Basel) 2014; 14: 20543–20561.

11.

Loendersloot R, Buethe I, Michaelides P, et al. Damage identification in composite panels – methodologies and visualisation. Springer International Publishing, 2016.

12.

Loendersloot

Buethe

Michaelides

, et al. Damage identification in composite panels – methodologies and visualisation. In: Wölcken

and Papadopoulos

(eds) Smart intelligent aircraft structures (SARISTU): proceedings of the final project conference, first ed. Cham: Springer, Heidelberg, New York, Dordrecht, London, 2015, pp. 579–604.

13.

Eckstein

Moix-Bonet

Bach

, et al. Lamb wave interaction at debondings due to impact damage in complex stiffened CFRP structures. In: Health monitoring of structural and biological systems 2017, Portland, Oregon, United States, SPIE, 2017, 101701Q.

14.

Malyarenko

Hinders

MK.

Ultrasonic Lamb wave diffraction tomography. Ultrasonics 2001; 39: 269–281.

15.

Yan

Royer

Rose

JL.

Ultrasonic guided wave imaging techniques in structural health monitoring. J Intelligent Mater Syst Struct 2010; 21: 377–384.

16.

Zhao

Gao

Zhang

, et al. Active health monitoring of an aircraft wing with embedded piezoelectric sensor/actuator network: I. Defect detection, localization and growth monitoring. Smart Mater Struct 2007; 16: 1208–1217.

17.

Moix-Bonet

Wierach

Loendersloot

, et al. Damage assessment in composite structures based on acousto-ultrasonics – evaluation of performance. In: Wölcken

Papadopoulos

(eds) Smart intelligent aircraft structures (SARISTU): proceedings of the final project conference. First ed. Imprint. Cham: Springer, Heidelberg, New York, Dordrecht, London, 2016, pp. 617–629.

18.

Butler

Buckling and compressive strength of laminates with optimized fibre-steering and layer-stacking for aerospace applications. In: Polymer composites in the aerospace industry. Oxford: Elsevier, 2015, pp. 77–97.

19.

Mittelstedt

Becker

Strukturmechanik ebener Laminate, first. Auflage, Studienbereich Mechanik Technische Universität Darmstadt, Darmstadt, 2016.

20.

Gurit, Guid to Composites: Delivering the Future of Composite Solutions, 2017.

21.

DIN EN ISO 527-12012. 06. Plastics – determination of tensile properties – Part 1: general principles (ISO 527-1:2012); German version EN ISO 527-1. Berlin: Beuth Verlag GmbH, 2012.

22.

Çitil

Ş.

Investigation of curved and scarf lap joints subjected to tensile loads using the cohesive zone model. Proc IMechE, Part C: J Mechanical Engineering Science 2019; 233: 6149–6156.

23.

Savitzky

Golay

MJE.

Smoothing and differentiation of data by simplified least squares procedures. Anal Chem 1964; 36: 1627–1639.

24.

Azuara

Barrera

Ruiz

, et al. Damage detection and characterization in composites using a geometric modification of the RAPID algorithm. IEEE Sensors J 2020; 20: 2084–2093.

25.

Tabatabaeipour

Hettler

Delrue

, et al. Visualization of delaminations in composite structures using a Baseline-Free, sparse array imaging technique based on nonlinear Lamb wave propagation. Acta Acustica United with Acustica 2017; 103: 987–997.

26.

Hua

Lin

Zeng

High-resolution damage detection based on local signal difference coefficient model. Struct Health Monitor 2015; 14: 20–34.