Energy absorption of braiding pultrusion process composite rods

Saitô, Hiroshi; Chirwa, E C; Inai, Ryuji; Hamada, Hiroyuki

doi:10.1016/s0263-8223(01)00160-x

Cited by 33 publications

(16 citation statements)

References 10 publications

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“…Using a resin curtain and injecting resin by a resin pump are among them which can be found in various works [13,15,19,20,23]. In this work, a secondary resin bath was designed and installed after the braider in order to ensure a perfect wetting of braid yarns, though the excess resin of core fibers in some types with relatively low cover/core fiber weight ratio was almost enough to wet out the braid fibers as they wrapped around them under tension.…”

Section: Development Of a Braiding-pultrusion Linementioning

confidence: 99%

“…However, there are a few works investigating mechanical properties of BP rods. Saito et al [20] and Hamada et al [21] investigated the properties of BP rods under crush test and showed that these rods had superior properties in comparison to the unidirectional rods in terms of energy absorption capabilities. They came to the conclusion that when BP rods are subjected to compressive loads, the braided layer protects the unidirectional core fibers against axial splitting and consequently makes the structure absorb more energy before failure.…”

Section: Introductionmentioning

confidence: 99%

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An experimental study on mechanical properties of GFRP braid-pultruded composite rods

Ahmadi¹,

Johari²,

Sadighi³

et al. 2009

Express Polym. Lett.

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Abstract. In this work, a conventional textile braiding machine was modified and added to a pultrusion line in order to produce glass fiber reinforced composite rods by braiding-pultrusion technique. Braid-pultruded (BP) rods were produced with three braid roving linear densities and also with three different braid angles. To study the influence of overbraiding on mechanical properties of pultruded rods, unidirectional (UD) rods, without braided fabric, were produced, as well. All rod types were subjected to tensile, bending and torsion tests. The experimental results showed that BP rods have considerably higher shear modulus, but lower tensile modulus and flexural rigidity than those of UD pultruded rods, when fiber volume fraction is kept constant. Moreover, rods produced with higher braid roving linear densities had better torsional, but lower tensile and flexural properties. The highest shear modulus was observed in BP rods with braid angle of 45°.

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Section: Development Of a Braiding-pultrusion Linementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An experimental study on mechanical properties of GFRP braid-pultruded composite rods

Ahmadi¹,

Johari²,

Sadighi³

et al. 2009

Express Polym. Lett.

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“…Tulip type triggering showed higher specific energy absorption of an increase of 16.5%. Energy absorption analysis on triggered effect was carried out using carbon and glass hybrid and non-hybrid composite braided rod [92]. It was concluded that progressive crushing was observed from conical triggered rod compared to non-tapered rod that leads to axial crack.…”

Section: Trigger Mechanismmentioning

confidence: 99%

Progressive Crushing of Polymer Matrix Composite Tubular Structures: Review

Rabiee¹,

Ghasemnejad²

2017

OJCM

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The present paper reviews crushing process of fibre-reinforced polymer (FRPs) composites tubular structures. Working with anisotropic material requires consideration of specific parameter definition in order to tailor a well-engineered composite structure. These parameters include geometry design, strain rate sensitivity, material properties, laminate design, interlaminar fracture toughness and off-axis loading conditions which are reviewed in this paper to create a comprehensive data base for researchers, engineers and scientists in the field. Each of these parameters influences the structural integrity and progressive crushing behaviour. In this extensive review each of these parameters is introduced, explained and evaluated. Construction of a well-engineered composite structure and triggering mechanism to strain rate sensitivity and testing conditions followed by failure mechanisms are extensively reviewed. Furthermore, this paper has mainly focused on experimental analysis that has been carried out on different types of FRP composites in the past two decades.

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“…Such structures have been produced and tested by Saito et al [43] using both glass and carbon fibre for the braiding and the rods.…”

Section: Fibre Architecturementioning

confidence: 99%