Low-velocity impact behavior of composites reinforced with weft-knitted spacer glass fabrics

Dabiryan, Hadi; Hasanalizade, Fatemeh; Sadighi, Mojtaba

doi:10.1177/1528083718787533

Cited by 19 publications

(15 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The energy during impact is reflected to be more efficiently absorbed by the behavior of membrane type. This is more in case of thinner composites where the large deflection of laminate happens several times higher than the laminate thickness [56, 57, 58]. Therefore, separation of fiber orientation through the thickness, particularly in case of [0/90/90/0] composite, very small amount of membrane type deformation can be enabled more efficiently than that of [90/-45/45/0] composite.…”

Section: Discussionmentioning

confidence: 99%

Effect of through thickness separation of fiber orientation on low velocity impact response of thin composite laminates

Sharma

Khan

Ramachandran

2019

Heliyon

View full text Add to dashboard Cite

The effect of separation of fiber orientation through the thickness of thin composites on their low velocity impact response is studied. The composites are prepared using unidirectional glass fiber reinforced epoxy through hand layup followed by vacuum bagging. The two dissimilar layups of composites considered have separation of composite layers with fibers having the same and different orientations through the thickness. The composites are subjected to low velocity impact using a drop-weight testing machine. The composites are evaluated using different performance parameters such as damage degree, first damage and maximum forces, first cracking energy, bending stiffness, elastic strain energy, elastic, residual and maximum displacements, permanent deformation, square-root delaminated area, delamination length and width, and contact duration. Among the two composites, it is observed that [90/-45/45/0] composite in which two layers with fibers having 90° and 0° orientations separating by two layers with fibers having -45° and 45° orientations, levels of deformation are lower and recorded force and square-root delaminated area are higher and lower, respectively for the same level of impact energy. Whereas, in case of [0/90/90/0] composite in which two layers with fibers having 0° orientations separating by two layers with fibers having 90° orientations, recorded force is lower and deformation and square-root delaminated area are higher. The [0/90/90/0] composite is having a comparatively more lateral spread of delamination and inter-layer opening than that of [90/-45/45/0] composite considering extensional and bending stiffnesses along longitudinal (A11, D11) and transverse (A22, D22) directions. This facilitates that lateral spread of damage within composite can be decreased by separating two layers of composite with 90° and 0° fiber orientations by two layers with -45° and 45° fiber orientations, i.e., [90/-45/45/0] composite.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of through thickness separation of fiber orientation on low velocity impact response of thin composite laminates

Sharma

Khan

Ramachandran

2019

Heliyon

View full text Add to dashboard Cite

show abstract

“…The 3D flat-knitted fabrics connected by tuck stitch are known for high density, 9 high specific stiffness, 12 and outstanding impact resistance. 5 Besides, the fabric can be combined with advanced flat-knitting forming technology to realize complex shape preform. At present, the mechanical properties of the existing 3D flat-knitted fabrics connected by tuck stitch cannot meet the requirements of rigid composites.…”

Section: Introductionmentioning

confidence: 99%

Development and mechanical properties of three-dimensional flat-knitted fabrics with reinforcement yarns

Tan

Jiang

Gao

et al. 2022

Journal of Industrial Textiles

View full text Add to dashboard Cite

Three-dimensional (3D) flat-knitted fabrics have become a topic of interest in the field of composites in recent years because of the growing need for rapid preparation of complicated shape preforms. In order to improve the mechanical properties of 3D flat-knitted fabrics, two types of 3D flat-knitted fabrics with reinforcement yarn (FKFR) were developed using ultra-high molecular weight polyethylene (UHMWPE) yarn. Their basic structures were composed of plain structure and interlock structure with tuck stitch, respectively, and the reinforcement yarn was integrated into the fabric as the weft inlay. The tensile, bending, drape, and bursting properties of the two fabrics were characterized. Results showed that the basic structure of the fabric has impacted on the mechanical properties of the fabric significantly. The tensile and bending properties of the fabric with interlock structure were better than that of the fabric with plain structure. During the transverse stretching process, the surface structure of the fabric with interlock structure was more stable. Moreover, transverse yarn strength utilization of the fabric with interlock structure was 1.05, which reached the level of ordinary woven fabric. In addition, the bursting force of the fabric with excellent tensile properties was lower than that of the fabric with a plain structure because the latter has better extensibility.

show abstract

“…Most researchers have focused on the tensile, bending, low‐velocity impact, and compression properties of carbon fiber‐reinforced composites because they are the main force of industrial materials. With regard to the mechanical properties of weft‐knitting‐reinforced composites, current studies have mainly focused on three‐dimensional spacing and multi‐axial structure of weft knitting 12‐15 . Reinforced yarns are knitted with parallel and straight‐lining yarns and the materials have excellent in‐plane mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Low‐velocity impact resistance and acoustic emission evaluation on mechanical failure of carbon fiber weft‐knitting‐reinforced composites

Tian

Qin

Shi

et al. 2021

Polymers for Advanced Techs

View full text Add to dashboard Cite

In this study, the carbon fiber weft‐knitting (CFWK)‐reinforced composites were prepared and the deformation mechanism during acoustic emission (AE) and low‐velocity impact resistance. To fabricate CFWK composites, single‐sided 1 × 1 variable plain stitch, double‐sided interlock structure, and two inter‐ply and intra‐ply hybrid structures of the former two stitches were applied for reinforcements in epoxy films via hot‐pressing. Moreover, we evaluated the tensile and bending properties during AE and investigated the low‐velocity impact properties of CFWK‐reinforced composites to evaluate the failure mechanism of composites. Finally, we analyzed the effects of laminating numbers, ply angle, and fabric structure on the properties of CFWK‐reinforced composites. Results showed that the composites with 1 × 1 variable plain stitch reinforcement exhibited the highest tensile strength and bending strength (206.22 and 213.43 MPa, respectively) among the composites with a two‐layer structure. The tensile fracture strength of [0/90] laying was 35%–50% lower than that of [0/0] laying. In addition, the cluster analysis on AE signal frequency showed that fiber debonding was the main failure mode, accounting for 68% of the total debonding when stretching along the longitudinal direction of the two‐ply composite loop. Under the impact energy of 4 J, the maximum load of CFWK‐reinforced composites with three‐ply interlock increased by 275% compared to that of single‐ply composites. Furthermore, the three‐ply interlock CFWK‐reinforced composites were perforated under impact energy of 10 J.

show abstract

Low-velocity impact behavior of composites reinforced with weft-knitted spacer glass fabrics

Cited by 19 publications

References 27 publications

Effect of through thickness separation of fiber orientation on low velocity impact response of thin composite laminates

Effect of through thickness separation of fiber orientation on low velocity impact response of thin composite laminates

Development and mechanical properties of three-dimensional flat-knitted fabrics with reinforcement yarns

Low‐velocity impact resistance and acoustic emission evaluation on mechanical failure of carbon fiber weft‐knitting‐reinforced composites

Contact Info

Product

Resources

About