Mechanical characterization of innovative 3D multi-cell thermoset composites produced with weft-knitted spacer fabrics

Hassanzadeh, Sanaz; Hasani, Hossein; Zarrebini, Mohammad

doi:10.1016/j.compstruct.2017.10.048

Cited by 30 publications

(18 citation statements)

References 31 publications

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“…All the produced knitted structures as the textile preforms were used to manufacture the tubular composites parts. During molding operation of composites reinforced with the tubular 3D integrated spacer weft‐knitted fabrics, providing their 3D geometry unchangeable needs an additional preparing step in which some PTFE inserts based on the fabrics geometrical configuration is used to fill the free spaced parts of the fabrics . Incorporation of PTFE components into the fabric structures is not only aimed to maintain the samples structural geometries, but it is also done for applying the predetermined tension to the looped yarns.…”

Section: Methodsmentioning

confidence: 99%

“…Using the vacuum infusion molding process (VIP), epoxy tubular composites reinforced with weft‐knitted fabrics were manufactured. The main reason for choosing VIP molding is due to its high compatibility in the manufacturing of composite parts with complex geometries . By considering the complexity of 3D designed spacer fabrics in this work, the used molding process needs some optimization in order to provide samples with high quality.…”

Section: Methodsmentioning

confidence: 99%

“…Hamedi et al . and Hassanzadeh et al . also tried to fabricate such innovative textiles with polyester and glass fibers, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical performance of tubular composites reinforced by innovative 3D integrated knitted spacer fabrics

Omrani

Hasani

Esmaeili

2017

J of Applied Polymer Sci

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This article aimed to investigate the mechanical performance of 3D integrated knitted spacer composites with a tubular shape, in term of internal hydrostatic and external static pressures (ESP). All the tubular-knitted fabrics were produced on a modern flat knitting machine using untwisted glass and HT-nylon yarns. Then, the epoxy resin was transferred through the whole fabric structure via vacuum infusion molding process. Produced tubular composites were subjected to internal hydrostatic and ESP. Accordingly, force-displacement curves were obtained and experimental results were discussed. The results revealed that the tubular composite samples containing non-knitting yarns show 27.33 and 37.50% improvement in internal hydrostatic and ESP, respectively, compared with the plain knitted fabric reinforced composite. Also, the finding demonstrated that mechanical performance of the tubular-knitted spacer composites is highly affected by aspect ratio and the number of connecting layers. Knitted spacer reinforced composite containing 5 and 10 connecting layers can improve the resistance against internal hydrostatic pressure 35.08 and 51.29%, respectively, compared with the plain knitted reinforced composites. In this case, 84.20 and 89.86% improvement can be achieved in term of the resistance against ESP.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Mechanical performance of tubular composites reinforced by innovative 3D integrated knitted spacer fabrics

Omrani

Hasani

Esmaeili

2017

J of Applied Polymer Sci

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“…The triangular core structure was reported to be the best candidate for arctic rescue vehicle owing to its lowest weight, low thermal conductivity, and higher resistance to shock compressive loads. [18] Knitted spacer structures with knitted fabric cross-links have been suggested in References [19][20][21], while fiber volume fraction of such thermoset composites was just 20%. [22] Multilayered panel made by stacking of several layers of sandwich structures exhibited increased energy absorption compared to the monolayer of same combining thickness.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of mechanical behavior of 3D woven spacer sandwich composites with single and double level structures

Neje

Behera

2020

Polymer Composites

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3D woven spacer fabrics connected with woven cross-links and forming tunnels of trapezoidal shape were produced in single and double level configuration with four different cell wall opening angles in each configuration. The sandwich composites produced from these spacer fabrics were then analyzed for their out-of-plane compressive and flexural properties to study their failure loads, energy absorbency, and failure modes. With an increase in the cell wall opening angles, compressive load and specific compressive load increased for single and double level structures, but the same properties were found to be poor for double level structures compared to their single level counterparts. Absorbed energy/volume was also found to be lower for double level composites. The bending load and specific bending load values increased with increase in cell wall opening angle, with double level structures performing better at each cell wall opening compared to their single level counterparts. But the flexural stress of double level structures was lower than that of their corresponding single level structures. The outcomes of this study can be used in designing and manufacturing of multilevel spacer structures with different cell geometrical parameters for specific end use requirements.

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“…The pliable quality of knitted fabric is superior to woven fabric. It can mainly be differentiated into weft knitted and warp knitted fabrics while loop formation is regarded as per the position of the threads [ 6 ]. Weft knitted fabrics can be classified into four basic structures.…”

Section: Introductionmentioning

confidence: 99%

Improving the functionality of raw cotton: simultaneous strength increases and additional multi-functional properties

Sela¹,

Nayab-Ul-Hossain

Rakib

et al. 2020

Heliyon

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It has, nowadays, become indispensable to get multi-functional properties from a single piece of fabric or garment in the sector of textile and fashion. Cotton fabric is now extremely being utilized in garments all over the world. At the raw stage, cotton fabric has less reflectance, high ignition tendency, moreover the proclivity to be attracted by microorganisms. The strength of the fabric might be deteriorated because of frequent processing. In this study, a single jersey raw (grey) cotton fabric of 150 GSM was processed with a pertinent chemical treatment to convert the reflectance to about 100 % and impart flame resistance property together with the other functional properties. Due to the attainment of high reflectance and flame resistance traits, the heat-absorbing tendency of the fabric became low which improved the comfortability of the fabric. The strength of the processed fabric was increased by 4 %. Crease recovery angle was increased by 57 % in the course way and by 82 % in wales way direction that attributed crease-resistance and more stability to the modified fabric. Moreover, the processed fabric was also able to exhibit antimicrobial properties. Strength improvement, attainment of crease-resistance, and antimicrobial property could enhance the longevity of the fabric. The attainment of multifunctional properties together with the strength improvement simultaneously provided a unique feature to the modified cotton fabric. It was a permanent chemical treatment, and it modified the surface of the fabric, which ultimately enhanced the proclivity of cotton fabric to be more compact or crystalline and more stable. The addition of the new quality of the cotton fabric could endure even after washing. The modified cotton fabric with newly added characteristics could be a good choice to prepare garments with felicitous longevity to protect from heat, fire flame sensitivity. It really could create an opportunity in multi-functional fabric processing as well as modern textiles.

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Mechanical characterization of innovative 3D multi-cell thermoset composites produced with weft-knitted spacer fabrics

Cited by 30 publications

References 31 publications

Mechanical performance of tubular composites reinforced by innovative 3D integrated knitted spacer fabrics

Mechanical performance of tubular composites reinforced by innovative 3D integrated knitted spacer fabrics

Comparative analysis of mechanical behavior of 3D woven spacer sandwich composites with single and double level structures

Improving the functionality of raw cotton: simultaneous strength increases and additional multi-functional properties

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