Strain-rate dependence of the tensile fracture behaviour of woven-cloth reinforced polyamide composites

Todo, Mitsugu; Toko, Kiyoshi; Béguelin, Ph.; Kausch, H. H.

doi:10.1016/s0266-3538(99)00184-0

Cited by 58 publications

(34 citation statements)

References 9 publications

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“…Todo et al [7] conducted tensile testing of plain weave carbon/ polyamide-6 (CF/PA6), carbon/modified polyamide-6 (CF/mPA6), glass/polyamide-6 (GF/PA6) and glass/modified polyamide-6 (GF/ mPA6) composites in a servo-hydraulic machine at strain rates ranging from 10 À2 to 40 s À1 . They observed that, typically, the tensile strength and failure strain increased with an increase in strain rate with the exception of GF/mPA6 whose mechanical properties remained constant at strain rates above 10 À2 s À1 .…”

Section: Introductionmentioning

confidence: 99%

The static and high strain rate behaviour of a commingled E-glass/polypropylene woven fabric composite

Brown

Brooks

Warrior

2010

Composites Science and Technology

106

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Section: Introductionmentioning

confidence: 99%

The static and high strain rate behaviour of a commingled E-glass/polypropylene woven fabric composite

Brown

Brooks

Warrior

2010

Composites Science and Technology

106

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“…To the a Corresponding author: ploeckl@lcc.mw.tum.de knowledge of the authors only few attempts were carried out to characterize the dynamic stress-strain response of carbon fiber reinforced polyamide-6 composites. Work done by Todo et al [12] on plain weave fabric carbon and glass fiber reinforced PA 6 suggested a linear relationship between the tensile strength behavior of the composite and the logarithmic strain rate. A recent study of Jendli et al [13] shows the characterization of twill woven carbon fiber reinforced polyamide-66 under 0 • , 90 • and ±45 • tensile loading from quasi-static to high strain rates.…”

Section: Introductionmentioning

confidence: 95%

“…They observed positive strain rate effects on the tensile strength for all loading directions. Both, Todo et al [12] and Jendli et al [13] used servo-hydraulic testing machines.…”

Section: Introductionmentioning

confidence: 99%

Characterization of unidirectional carbon fiber reinforced polyamide-6 thermoplastic composite under longitudinal compression loading at high strain rate

Ploeckl¹,

Kühn²,

Koêrber³

2015

EPJ Web of Conferences

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Abstract. In the presented work, an experimental investigation has been performed to characterize the strain rate dependency of unidirectional carbon fiber reinforced polyamide-6 composite for longitudinal compression loading. An end-loaded compression specimen geometry, suitable for contactless optical strain measurement via digital image correlation and dynamic loading in a split-Hopkinson pressure bar, was developed. For the dynamic experiments at a constant strain rate of 100 s −1 a modified version of the Dynamic Compression Fixture, developed by Koerber and Camanho [Koerber and Camanho, Composites Part A, 42, 462-470, 2011] was used. The results were compared with quasi-static test results at a strain rate of 3 · 10 −4 s −1 using the same specimen geometry. It was found that the longitudinal compressive strength increased by 61% compared to the strength value obtained from the quasi-static tests.

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“…Therefore, woven fabric composites exhibit complex mechanical response and damage behavior under applied loading. The mechanical properties of composite such as tensile strength and stiffness degrade as compared with cross-ply composites [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, a new weaving technique of woven fabric using spread fiber tows was developed. The advantages of spread tow are (1) to develop mechanical properties of composites because of diminishing flexure of tow, (2) to penetrate easily high viscosity resin, such as thermoplastic resin, into thin plain-woven fabric and (3) to cut cost to use 'large tow' which consists of large number of carbon fibers (about 48,000~320,000). We have already confirmed that static and fatigue properties of composites using spread tows improved.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of plain-woven CFRP reinforced by spread fiber tow during and after drop-weight impact

Toyota¹,

Okubo²,

Fujii³

et al. 2006

WIT Transactions on the Built Environment, Vol 87

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For this paper, the impact behaviors and the damage state of plain-woven CFRP reinforced by spread tow due to falling weight were evaluated. Stress-Strain responses of the CFRP using spread tows were investigated under drop-weight impact loading at room temperature. Three leveled impact energy was applied to the surface of the specimen in the drop-weight test. The peak load and absorbed energy were then compared with those of a conventional one and the experimental results showed that the peak load and absorbed energy of the developed CFRP were higher. A large amount of energy was absorbed due to the propagation of macro cracks and delaminations near the counter surface in the developed CFRP. When reinforced by spread tow its structure absorbs a large amount of energy after the initial stage of impact damage. The SAI (static strength after impact) and the FAI (fatigue life after impact) were also examined and the tensile test results showed that the static strength retention of the developed CFRP was higher than those of a conventional one. The developed CFRP also has long fatigue life under the tension-tension cyclic load after the impact. It was found that it maintained superior mechanical properties compared to the original, even after the material was damaged due to impact, because critical propagation of the debonding was prevented around the warp of thin cloth. This paper concludes that reinforcing with spread tow is effective for improving the mechanical properties of plain-woven CFRP during and after impact loading.

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Strain-rate dependence of the tensile fracture behaviour of woven-cloth reinforced polyamide composites

Cited by 58 publications

References 9 publications

The static and high strain rate behaviour of a commingled E-glass/polypropylene woven fabric composite

The static and high strain rate behaviour of a commingled E-glass/polypropylene woven fabric composite

Characterization of unidirectional carbon fiber reinforced polyamide-6 thermoplastic composite under longitudinal compression loading at high strain rate

Mechanical properties of plain-woven CFRP reinforced by spread fiber tow during and after drop-weight impact

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