Energy absorption properties of braided glass/epoxy tubes subjected to quasi-static axial crushing

Gui, Liang Jin; Zhang, P.; Fan, Zi Jie

doi:10.1080/13588260802411416

Cited by 19 publications

(13 citation statements)

References 12 publications

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“…The splaying mode is the most reported mode for braided composite tubes. It was observed for carbon/epoxy [57,61,62,64] and glass/epoxy [61,63] tubes. The folding mode is observed in Ref.…”

Section: Discussionmentioning

confidence: 83%

Experimental investigation of the crash energy absorption of 2.5D-braided thermoplastic composite tubes

Priem

Othman

Rozycki

et al. 2014

Composite Structures

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International audienceBraided composites tubes have been reported to have a great potential in crash energy absorption applications. However, previous works were limited to thermoset braided composite tubes. In this study, we are interest in the crash energy absorption performance of 2.5D braided thermoplastic composite tubes. The sensitivity to materials, fiber orientation and geometry was investigated. Three crushing modes have observed. The splaying and progressive folding were reported for glass/polypropylene tubes and fragmentation mode was observed carbon/polyamide tubes. The last mode has the highest specific energy absorption of 61 kJ/kg. The progressive folding mode has higher specific energy absorption (36 kJ/kg) than the splaying mode. Moreover, the specific energy absorption increases with increasing braiding angle and decreasing length-to-diameter ratio, for glass/polypropylene tubes. On the opposite, the specific energy absorption deceases with braiding angle for carbon/polyamide tubes

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“…The splaying mode is the most reported mode for braided composite tubes. It was observed for carbon/epoxy [57,61,62,64] and glass/epoxy [61,63] tubes. The folding mode is observed in Ref.…”

Section: Discussionmentioning

confidence: 83%

Experimental investigation of the crash energy absorption of 2.5D-braided thermoplastic composite tubes

Priem

Othman

Rozycki

et al. 2014

Composite Structures

View full text Add to dashboard Cite

show abstract

“…Email: Hwangjc@nuaa.edu.cn researchers. Many studies in the literature [13,16,20,26,29] indicate that a 45 • bevel ground at one end of the composite tubes could trigger the failure at the chamfer zone and provide a stable propagation of the collapse from that end. Farley [9] pointed out that chamfering and notching one end of the composite tubular specimen reduced the peak load at initial failure without altering the sustained crushing load and prevented a catastrophic failure.…”

Section: Introductionmentioning

confidence: 99%

“…The tests have also indicated that the energy absorption mechanism of composites is far more complex than those observed in metallic materials, including matrix cracking, matrix crushing, fibre breakage, fibre buckling, delamination and fibre-matrix de-bonding [2,4,11]. The energy absorption characteristics of composite components rely not only on the intrinsic properties of the materials, such as fibre type, matrix type, fibre architecture, fibre content, lamina design and fibre surface treatment [19,21], but also on the crush triggers [6,8,9,[12][13][14][15][16]20,[23][24][25][26][27][28][29] incorporated at appropriate locations in the components to initiate a stable progressive crush in a controlled manner without causing unacceptably high values of peak load or catastrophic failures.…”

Section: Introductionmentioning

confidence: 99%

On a new crush trigger for energy absorption of composite tubes

Huang

Wang

2010

International Journal of Crashworthiness

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A new crush trigger, called crown trigger, is introduced at one end of carbon-fibre-reinforced polymer circular tubes. Quasistatic compression tests are performed on the tubes to investigate their energy absorption characteristics. It is observed that all tubes are crushed in a brittle fracturing mode. Both crown trigger and bevel trigger can effectively control the position of crushing initiation, reduce the peak load and increase the crushing stability. It is also found that the tube wall of each specimen is delaminated mainly into three layers. The relatively intact exterior layer may constrain the axial splits of the middle layer, make the lamina bundles break off near the base, slow down the central wall crack propagation and thus eliminate a low-performance failure mode. As compared with the bevel trigger, the crown trigger provides nearly the same specific energy absorption but 18.4% lower specific triggering stress and 21.2% higher crushing load efficiency.

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“…Mwangi and K. Kanny way of axial crushing, lateral indentation / flattening, inversion, or splitting. This failure pattern of tubes with relation to geometry has also been explored [11,25,36,53] with composite tubes generally exhibiting splaying, fragmentation, progressive folding and then catastrophic failure.…”

Section: Introductionmentioning

confidence: 97%

Development of granular-medium-based impact energy management system

Mwangi

Kanny

2012

International Journal of Crashworthiness

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A granular-medium-based impact energy management system has been developed. The system was subjected to low-tomedium velocity regime impacts. Effects of lubrication of granules and defaulting of boundary conditions using Bravais cubic lattice structures have been investigated. Unlike traditional design platforms where heavy reliance is placed on the intrinsic properties of materials, experimental results indicate that the new system effectively relies on the underlying synergistic mechanisms to absorb and dissipate impact energy. Dynamic simulation results validate the system's practical relevance to the automotive industry and similar contexts.

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Energy absorption properties of braided glass/epoxy tubes subjected to quasi-static axial crushing

Cited by 19 publications

References 12 publications

Experimental investigation of the crash energy absorption of 2.5D-braided thermoplastic composite tubes

Experimental investigation of the crash energy absorption of 2.5D-braided thermoplastic composite tubes

On a new crush trigger for energy absorption of composite tubes

Development of granular-medium-based impact energy management system

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