Evaluation of the energy release rate in mode I of asymmetrical bonded composite/metal assembly

Zambelis, Georges; Botelho, Tony da Silva; Klinkova, Olga; Tawfiq, Imad; Lanouette, C.

doi:10.1016/j.engfracmech.2017.12.007

Cited by 32 publications

(15 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Representative examples of joining methods include adhesive bonding, mechanical joining, and heat welding. For adhesive bonding, [1][2][3][4] a wide variety of adhesive agents, such as epoxies and cyanoacrylates, are attempted to be used for structural application. However, for most adhesives a long curing time is required, and the method is characterized by poor productivity.…”

Section: Introductionmentioning

confidence: 99%

Fatigue delamination growth characterization of a directly bonded carbon-fiber-reinforced thermoplastic laminates and aluminum alloys with surface nanostructure using DCB test

Saito

Jespersen²,

Ota

et al. 2021

Journal of Composite Materials

View full text Add to dashboard Cite

With the recent demand for weight reduction, structural materials for transportation equipment are being replaced by carbon-fiber-reinforced thermoplastics (CFRTPs). Therefore, techniques to join CFRTPs to alloys are needed. In this study, the fatigue delamination growth of bonded CFRTP/aluminum alloy joints was characterized. The specimens were bonded in three ways, using adhesive, direct chemical bonding, and direct chemical bonding with a nanostructured surface. The type of the specimen was double cantilever beam (DCB) specimen, which consisted of aluminum alloy (A5052) and plain woven CFRTP. The lay-up of the CFRTP was [(0,90)]9 and the used matrix was PA6. Fatigue loading was applied in displacement control mode. The ratio between the minimum and maximum displacement was 0.1, and the test frequency was 5 Hz. The crack length during the fatigue tests was obtained by compliance calibration. Fatigue was characterized by constructing a Paris diagram for each specimen type. The fracture surface distinctively changed from smooth brittle-like fracture to hair-like ductile fracture post fabricating a nanostructure and chemical bonding. As a result, the fatigue crack growth resistance of the specimen with the nanostructure significantly improved due to the hair-like ductile fracture.

show abstract

Section: Introductionmentioning

confidence: 99%

Fatigue delamination growth characterization of a directly bonded carbon-fiber-reinforced thermoplastic laminates and aluminum alloys with surface nanostructure using DCB test

Saito

Jespersen²,

Ota

et al. 2021

Journal of Composite Materials

View full text Add to dashboard Cite

show abstract

“…This method combines a twodimensional mixed finite element with the virtual crack extension technique to calculate the strain energy release rate of crack interfaces in sandwich beams. A Double Cantilever Beam (DCB) [11][12][13] and asymmetrical Double Cantilever Beam (UDCB) [14][15][16] tests have been studied in this paper. Several numerical tests, for different values of the initial crack size and sandwich beam dimensions, were analyzed and the results obtained using the proposed method were compared with those found in the literature.…”

Section: Introductionmentioning

confidence: 99%

Computation of mode I strain energy release rate of symmetrical and asymmetrical sandwich structures using mixed finite element

Ali

Bouziane

Bouzerd

2021

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

The use of composite materials is on the rise in different engineering fields, the main advantage of these materials for the aerospace industry is their low weight for excellent mechanical qualities. The analysis of failure modes, such as delamination, of these materials has received great attention from researchers. This paper proposes a method to evaluate the mode I Strain Energy Release Rate (SERR) of sandwich structures. This method associated a two-dimensional mixed finite element with virtual crack extension technique for the analysis of interfacial delamination of sandwich beams. A symmetrical Double Cantilever Beam (DCB) and asymmetrical Double Cantilever Beam (UDCB) have been analyzed in this study. The comparison of the results obtained by this method and those found in the literature shows efficiency and good precision for the calculation of Strain Energy Release Rate (SERR).

show abstract

“…There is only a small group of published works that investigate the interfacial fracture of joints (or, to be more precise, multi-layered beam-like specimens) consisting of two "non-homogeneous" (i.e., elastically coupled) sub-laminates [7][8][9][10][11][12][13][14]. In this case, studying the various published papers [7][8][9][10][11][12][13][14], we observed that the experimental data were post-processed using different data reduction approaches, from simpler approaches, such as the Euler beam theory or William's global method, to more sophisticated ones, such as Wang and Qiao's [15] approach. In some cases, the utilized data reduction scheme does not consider the elastic coupling effects and thus does not give accurate predictions of the fracture toughness.…”

Section: Introductionmentioning

confidence: 99%

“…In [12], the mode I fracture toughness of the metal/composite interface region of some fiber metal laminates were determined and a finite element model was developed to account for the influence of metal plasticity on the measured fracture toughness. In [13], modified DCB specimens were tested to investigate the mode I fracture properties of an asymmetric metal-composite adhesive joint. A modified form of Kanninen's theory, capable of considering the specific specimen design, was then used.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Interfacial Fracture Toughness Assessment of a New Titanium–CFRP Adhesive Joint: An Experimental Comparative Study

Tsokanas

Λούτας

Nijhuis

2020

Metals

View full text Add to dashboard Cite

Adhesive joints between dissimilar layers of metals and composites are increasingly used by different industries, as they promise significant weight savings and, consequently, a reduction in energy consumption and pollutant emissions. In the present work, the interfacial fracture behavior of a new titanium–carbon fiber reinforced plastic (CFRP) adhesive joint is experimentally investigated using the double cantilever beam (DCB) and end-notched flexure (ENF) test configurations. A potential application of this joint is in future large passenger aircraft wings. Four characteristic industry relevant manufacturing approaches are proposed: co-bonding with/without adhesive and secondary bonding using thermoset/thermoplastic CFRP. For all of them, the vacuum-assisted resin transfer molding (VARTM) technique is utilized. To prevent titanium yielding during testing, two aluminum backing beams are adhesively bonded onto the primary joint. A data reduction scheme recently proposed by the authors, which considers effects such as bending–extension coupling and manufacturing-induced residual thermal stresses, is utilized for determination of the fracture toughness of the joint. The load–displacement responses, fracture behaviors during testing, and fracture toughness performances of the four manufacturing options (MOs) under consideration are presented and compared.

show abstract

Evaluation of the energy release rate in mode I of asymmetrical bonded composite/metal assembly

Cited by 32 publications

References 15 publications

Fatigue delamination growth characterization of a directly bonded carbon-fiber-reinforced thermoplastic laminates and aluminum alloys with surface nanostructure using DCB test

Fatigue delamination growth characterization of a directly bonded carbon-fiber-reinforced thermoplastic laminates and aluminum alloys with surface nanostructure using DCB test

Computation of mode I strain energy release rate of symmetrical and asymmetrical sandwich structures using mixed finite element

Interfacial Fracture Toughness Assessment of a New Titanium–CFRP Adhesive Joint: An Experimental Comparative Study

Contact Info

Product

Resources

About