Bonded Repair of Composite Structures

Kanterakis, George; Chemama, Roland; Kitsianos, Konstantinos

doi:10.1007/978-3-030-35346-9_13

Cited by 1 publication

(3 citation statements)

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“…the product of the bonding process, is an adhesive joint. Concerning the feasible lifecycle of an adhesive joint, such a bonding process may occur during manufacture [12] or during repair [29].…”

Section: Adhesive Bonding Processesmentioning

confidence: 99%

“…The use of CFRP as an innovative material for aircraft design has increased immensely within the few last years [22,29,62] (the Airbus A350 XWB is composed of up to 53% CFRP), leading to an increasing demand for both high quality and quantity of composite material and composite joints, accompanied by lower costs. Adhesive bonding as a joining technology can enable the use of the full potential of CFRP as a lightweight material for aircraft design and is already used for joining many CFRP-based aircraft parts.…”

Section: Impacts and Contributionsmentioning

confidence: 99%

“…However, it is highly desirable to facilitate adhesive bonding as a joining technology for load-critical primary structures because adhesive bonding and adhesive joints possess numerous advantages over other processes: homogeneous stress distribution, full automation capability, lightweight design, strong and even complex structure design, capability of joining two distinct materials, interesting properties in electrolytic and corrosion protection and finally high fatigue resistance furnishing a longer service lifetime compared to mechanically bonded structures. Most of the aircraft produced nowadays contain a high amount of CFRP material and therefore require the adhesive bonding of CFRP in manufacturing, maintenance and repair [29]. From our point of view, this further emphasises the need for complete and reliable quality assurance concepts based on appropriate and resilient ENDT techniques for quality assessment.…”

Section: Impacts and Contributionsmentioning

confidence: 99%

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Introduction to Recent Advances in Quality Assessment for Adhesive Bonding Technology

Noeske

Cavalcanti

Brüning

et al. 2021

Adhesive Bonding of Aircraft Composite Structures

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The first chapter highlights the relevance of both adhesive bonding technology and in-process quality assessment for mastering twenty-first-century challenges in joining functional and lightweight materials like carbon fibre reinforced polymers. The ongoing developments of the relevant technological and regulatory procedures and frameworks are hereby outlined, following trends for data-driven innovation and standardisation. Advances from monitoring process variables towards the in-depth and objective Extended Non-destructive Testing (ENDT) of material-related features are presented, based on methodological and technological innovation and insights from recent European joint research projects like Horizon 2020s ComBoNDT—“Quality assurance concepts for adhesive bonding of aircraft composite structures by advanced NDT”. Introducing ten heuristic principles for quality assessment in bonding processes, a concept is demonstrated for establishing empirically consolidated sets of quantitative material and process-specific correlations between design-relevant joint features and quality data measured during the manufacture or repair of adhesive joints using ENDT. Each correlation is obtained by systematically introducing disturbances of relevant process features identified by experts and is levelled once by linking findings from standardised mechanical tests with ENDT results obtained for joints that have intentionally been manufactured or repaired in an off-specification way. Subsequent chapters will demonstrate the suitability of the broadly applicable process.

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Section: Adhesive Bonding Processesmentioning

confidence: 99%

Section: Impacts and Contributionsmentioning

confidence: 99%

Section: Impacts and Contributionsmentioning

confidence: 99%

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