Static and cyclic strength properties of brittle adhesives with porosity

Fernandez, Garbiñe; Vandepitte, Dirk; Usabiaga, Hodei; Debruyne, Stijn

doi:10.1016/j.ijfatigue.2018.08.018

Cited by 15 publications

(34 citation statements)

References 39 publications

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“…The adhesive layers that can have thickness reaching 30 mm [305] usually include several local, but large, voids, as shown in Figure 24 [306] and Figure 25 . [307,308] Gaps as large as 12-15 mm and voids in bondlines -some up to 50 mm long -were observed in a 43 m rotor blade. [309] The adhesive bonding of the different parts in a wind turbine blade provides a special challenge as it is Figure 22.…”

Section: Potential and Challengesmentioning

confidence: 97%

“…Typical wind turbine blade cross section (a) and cross section of the adhesive joint from spar cap to shear web in detail (b). [307,308] appropriate modeling of the assembly behavior. Furthermore, engineering structures with thick bondlines usually operate under fatigue loadings and are susceptible to fatigue failure.…”

Section: Potential and Challengesmentioning

confidence: 99%

“…It is often assumed that the safety factors used in wind blade design are taken too high, when seen from the material point of view. [209,307,313] Nevertheless, damages are observed in industrial wind blades, even at the beginning of their life time validating the use of such high safety factors for practical use.…”

Section: Potential and Challengesmentioning

confidence: 99%

“…A similar approach of combining experimental investigations at the subcomponent level with numerical simulations for the study of the web to skin joint in wind turbine blades was followed. [307] The characteristics of the beam sub-component are shown in Figure 28, while the experimental set-up is presented in Figure 29.…”

Section: Trends In Testingmentioning

confidence: 99%

“…Final failure of the sub-component was due to the separation of the upper flange from the web in the vicinity of the clamping system as described in [307] Figure 27. Failure of the modified beam.…”

Section: Trends In Testingmentioning

confidence: 99%

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Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview

Budzik

Wolfahrt

Reis

et al. 2021

The Journal of Adhesion

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The development of new adhesives has allowed to expand the application of bonding into the most diverse industrial fields. This review article presents the commonly used experimental methods for the investigation of mechanical performance of adhesively bonded joints in the aerospace, wind energy, automotive and civil engineering sectors. In these sectors, due to their excellent intrinsic properties, composite materials are often used along with conventional materials such as steel, concrete and aluminium. In this context, and due to the limitations that the traditional joining techniques present, adhesive joints are an excellent alternative. However, standardized experimental procedures are not always applicable for testing representative adhesive joints in these industries. Lack of relevant regulations across the different fields is often overcome by the academia and companies' own regulations and standards. Additional costs are thus mitigated to the industrial sectors in relation with the certification process which effectively can deprive even the biggest companies from promoting adhesive bonding. To ensure continuous growth of the adhesive bonding field the new international standards, focusing on actual adhesive joints' performance rather than on specific application of adhesive joints are necessary.

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