Damage detection in intra-ply glass/carbon laminated composites under Mode-I and Mode-II fracture loadings

Meninno, Christopher; Chalivendra, Vijaya

doi:10.1016/j.compositesb.2021.108924

Cited by 9 publications

(8 citation statements)

References 16 publications

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“…In similar works conducted by Meninno and Chalivendra of epoxy carbon/glass intra-ply composites under Mode-I fracture loadings, 13 a comparable trend was observed between the fracture toughness of G-0-C-90 and G-90-C-0 composites. As such, they report composites with carbon fibers in direction of crack growth with having greater fracture toughness.…”

Section: Resultssupporting

confidence: 78%

“…The specifications of the fibers and matrix is listed in Table 1. To enhance the electrical network of the composite, Multi-walled Carbon Nanotubes (MWCNTs) of 0.025 wt.% are dispersed in the thermoplastic matrix, similar to the process previously discussed by Meninno et al 13 with an epoxy matrix. The MWCNTs (supplied by Cheap Tubes Inc., Grafton, VT, USA) have a purity of at least 95%, with an outside diameter of 20–30 nm, and a length of 10–30 μm.…”

Section: Methodsmentioning

confidence: 99%

“…Without micro carbon fibers, the composites were not conductive enough. In similar works, Meninno and Chalivendra 13 completed a study on carbon/glass epoxy intra-ply FRPCs with 0.025 wt.% CNTs. The influence of laminate orientations on mode-I and mode-II fracture toughness was analyzed.…”

Section: Introductionmentioning

confidence: 98%

“…To conduct this study, only a small amount of CNTs (0.025 wt.%), as utilized previously by Meninno et al 13 for intra-ply composites, is needed to generate a strong conductive network alongside the carbon yarn of the intra-ply fabric. Rather than increasing the mechanical properties, the CNTs in the matrix develop a rich electrical network for enhanced in-situ damage sensing.…”

Section: Introductionmentioning

confidence: 99%

“…Literature suggests that the choice of polymer matrix and the fabric architecture greatly contributes to the distinct electro-mechanical response. Since damage sensing of El-ium® Carbon/Glass Intra-ply thermoplastic composites have not been reported in literature, the following scientific objectives are the focus of this study: To conduct this study, only a small amount of CNTs (0.025 wt.%), as utilized previously by Meninno et al 13 for intra-ply composites, is needed to generate a strong conductive network alongside the carbon yarn of the intra-ply fabric. Rather than increasing the mechanical properties, the CNTs in the matrix develop a rich electrical network for enhanced in-situ damage sensing.…”

Section: Introductionmentioning

confidence: 99%

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Piezoresistive damage sensing and mechanical characteristics of carbon/glass hybrid thermoplastic composites

Shonar

Chalivendra

2023

Journal of Composite Materials

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A comprehensive experimental investigation is performed to understand the damage sensing capabilities of thermoplastic intra-ply carbon/glass laminated composites embedded with Carbon Nanotubes (CNTs) under quasi-static interlaminar shear and mode-I fracture loading conditions. CNTs are dispersed in thermoplastic Elium® resin using a combination of ultrasonication and shear mixing processes. This resin mix is used in a vacuum infusion process to fabricate four different intra-ply laminated composites orientations; G-0-C-90 [Carbon fibers are in the longitudinal direction], G-90-C-0 [Glass fibers are in the longitudinal direction], G-45-C-45(R) [carbon and glass fibers are at +45°, and −45° from the longitudinal direction and form a repeating layup], and G-45-C-45(A) [carbon and glass fibers are at +45°, and −45°, but with alternating directions for each lamina in the layup]. Four-circumferential probes are utilized to obtain the piezo-resistance measurements associated with damage inside the composites under shear and mode-I loadings. In the shear experimentation, the G-45-C-45(A) orientation demonstrated the largest interlaminar shear strength, at 50% greater than the G-45-C-45(R) orientation. Both G-45-C-45(A) and G-45-C-45(R) had significantly larger shear strains compared to the G-90-C-0 and G-0-C-90 orientations. However, the best resolution in shear damage sensing was seen with the G-0-C-90 composites. In the mode-I fracture experiments, the greatest fracture initiation toughness is shown with the G-0-C-90 orientation, which is 80% greater than the G-90-C-0 orientation. Compared to all orientations, the G-0-C-90 orientation also provided the most sensitive electrical response.

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Section: Resultssupporting

confidence: 78%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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