Quasi-static crush energy absorption capability of E-glass/polyester and hybrid E-glass–basalt/polyester composite structures

Esnaola, A.; Ulacia, I.; Aretxabaleta, L.; Aurrekoetxea, J.; Gallego, I.

doi:10.1016/j.matdes.2015.03.044

Cited by 49 publications

(27 citation statements)

References 28 publications

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“…

U_{normalP} = U - U_{normale}, U_{normale} = {false\int}_{0}^{l_{i p}} P true(l true) d l

normalS normalE normalA = \frac{U_{normalP}}{m_{normalc}}, m_{normalc} = (|, \frac{M}{L}) l_{normalm normala normalx}

where

U_{normale}

denotes the recoverable (elastic) strain energy,

l_{normali normalp}

is the crush distance corresponding to the initial peak load, and

(|, M / L)

is the specimen's pretest mass‐per‐unit length. Average crushing load (

P_{normala normalv normalg}

), which is obtained by the total absorbed energy per the crushed tube length (

l_{normalm normala normalx}

) .

P_{normala normalv normalg} = \frac{{false\int}_{0}^{l_{m a x}} P true(l true) d l}{l_{normalm normala normalx}}

…”

Section: Methodsmentioning

confidence: 99%

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Crashworthiness characteristics of carbon–jute–glass reinforced epoxy composite circular tubes

et al. 2017

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This article provides an experimental investigation into the crashworthiness of carbon–jute–glass reinforced epoxy circular composite tubes. The test specimens were fabricated of 6 layers with different stacking sequence using wet‐wrapping process and tested under uniaxial quasi‐static compression loading up to complete crushing. The effects of hybrid reinforcement, stacking sequence, and relative reinforcement amounts on the energy absorption capabilities and failure modes were studied. Also, the crush load–displacement response, initial crushing failure load, total energy absorption, specific energy absorption, average crushing load, and crushing force efficiency were determined and discussed. The scanning electron microscope study was considered to analyze the failure modes of the crushed specimens. Results indicate that specimens' failure modes and energy absorption capabilities were highly dominated by the reinforcement combinations and plies stacking sequence. Also, hybrid carbon–jute–glass reinforced epoxy composite tubes have the potential to be used as energy absorbers as compared to jute‐reinforced epoxy composite tubes. The JGC composite tube has a higher load carrying capacity and energy absorption capability compared to other hybrid composite tubes, so it seems to be the best appropriate choice for energy absorbing devices. POLYM. COMPOS., 39:E2245–E2261, 2018. © 2017 Society of Plastics Engineers

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“…

U_{normalP} = U - U_{normale}, U_{normale} = {false\int}_{0}^{l_{i p}} P true(l true) d l

normalS normalE normalA = \frac{U_{normalP}}{m_{normalc}}, m_{normalc} = (|, \frac{M}{L}) l_{normalm normala normalx}

where

U_{normale}

denotes the recoverable (elastic) strain energy,

l_{normali normalp}

is the crush distance corresponding to the initial peak load, and

(|, M / L)

is the specimen's pretest mass‐per‐unit length. Average crushing load (

P_{normala normalv normalg}

), which is obtained by the total absorbed energy per the crushed tube length (

l_{normalm normala normalx}

) .

P_{normala normalv normalg} = \frac{{false\int}_{0}^{l_{m a x}} P true(l true) d l}{l_{normalm normala normalx}}

…”

Section: Methodsmentioning

confidence: 99%

“…Esnaola et al studied the energy absorption capability of semi‐hexagonal hybrid E‐glass/basalt composite profiles with different ply orientations and laminate configurations. It was concluded that the hybrid configuration showed stable and progressive collapse, unlike basalt due to the interaction with glass plies.…”

Section: Introductionmentioning

confidence: 99%

Crashworthiness characteristics of carbon–jute–glass reinforced epoxy composite circular tubes

et al. 2017

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“…Moreover, the advanced energy absorption capability and excellent specific mechanical properties also make them very attractive for crashworthy light weight structures, compared to conventional metallic materials [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Effects of fiber orientation and wall thickness on energy absorption characteristics of carbon-reinforced composite tubes under different loading conditions

Wang

Feng

et al. 2016

Composite Structures

104

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“…The crashworthiness properties and energy absorption characteristics of structures with different cross-sectional shapes and geometries have been studied, 25 including in particular, sine-wave beams, 10,13 semi-hexagonal specimens, 26 columns specimens, 27 conical shells [28][29][30] or various tubular shapes, 28,29,31,32 and corrugated tubes. 28,29,33 Foremost, tubular shapes tested are circular [1][2][3]5,[7][8][9]12,14,18,20,28,29,[34][35][36][37][38][39][40][41][42][43][44][45][46][47][48] or squared.…”

Section: Introductionmentioning

confidence: 99%

Energy absorption capacity of composite thin-wall circular tubes under axial crushing with different trigger initiations

Chambe

Dorival

Ferrero

2019

Journal of Composite Materials

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The purpose of this study is to evaluate and compare the ability of various composite structures to dissipate the energy generated during a crash. To this end, circular composite tubes were tested in compression in order to identify their behavior and determine their absorbing capabilities using the specific energy absorption (energy absorbed per unit weight). Several composite tubular structures with different materials and architectures were tested, including hybrid composition of carbon–aramid and hybrid configuration of 0/90 UD with woven or braided fabric. Several inventive and experimental trigger systems have been tested to try and enhance the absorption capabilities of the tested structures. Specific energy absorption values up to 140 kJ.kg−1 were obtained, achieving better than most instances from the literature, reaching around 80 kJ.kg−1. Specimens with 0°-oriented fibers coincidental with the direction of compression reached the highest specific energy absorption values while those with no fiber oriented in this direction performed poorly. Moreover, it has consequently been established that in quasi-static loading, a unidirectional laminate oriented at 0° and stabilized by woven plies strongly meets the expectations in terms of energy dissipation. Incidentally, an inner constrained containment is more effective in most cases, reducing the initial peak load without drastically reducing the specific energy absorption value.

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Quasi-static crush energy absorption capability of E-glass/polyester and hybrid E-glass–basalt/polyester composite structures

Cited by 49 publications

References 28 publications

Crashworthiness characteristics of carbon–jute–glass reinforced epoxy composite circular tubes

Crashworthiness characteristics of carbon–jute–glass reinforced epoxy composite circular tubes

Effects of fiber orientation and wall thickness on energy absorption characteristics of carbon-reinforced composite tubes under different loading conditions

Energy absorption capacity of composite thin-wall circular tubes under axial crushing with different trigger initiations

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