Effect of polyurea coatings on the response of curved E-Glass/Vinyl ester composite panels to underwater explosive loading

LeBlanc, James; Gardner, Nate; Shukla, Arun

doi:10.1016/j.compositesb.2012.02.038

Cited by 70 publications

(21 citation statements)

References 16 publications

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“…This suggests that the additional laminate plies and the employed polyurea regime serve to degrade the deflection performance of the plate specimen with respect to AWR. This observation is consistent with previous findings for curved polyurea composite plates subjected to far field UNDEX loading in which polyurea coatings have been seen to result in larger AWR adjusted deflections [13]. It is noted that in the previous study, multiple coating thicknesses were considered and it was found that there are coating thicknesses for which the coated plate outperforms the baseline plate, even when accounting for the AWR penalty.…”

Section: Resultssupporting

confidence: 88%

“…However, when the plate thickness is increased or a coating is applied there is an associated penalty in that the plate weight is correspondingly increased. One means of quantifying the added mass penalty in terms of transient deflection of the respective plates is to establish an Areal Weight Ratio (AWR) between the plate configurations [13]. The AWR is calculated by (equation (1))…”

Section: Resultsmentioning

confidence: 99%

“…Research efforts have recently studied the effectiveness of polyurea when used with composite materials. LeBlanc et al [12,13] showed that the transient response of UNDEX loaded composite plates is dependent upon both coating thickness as well as location. Tekalur et al [14] investigated the response of E-Glass composites coated with polyurea subjected to air blast loading.…”

Section: Introductionmentioning

confidence: 99%

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Near Field Underwater Explosion Response of Polyurea Coated Composite Plates

et al. 2015

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An experimental study with corresponding numerical simulations has been conducted to evaluate the response of E-Glass / Epoxy composite plates, including polyurea coating effects, subjected to near field underwater explosion (UNDEX) loading. Experiments are performed in a water filled blast tank in which the including transient plate response during the UNDEX loading is measured utilizing high speed photography coupled with Digital Image Correlation. The experimental results show that the transient response of the plate is improved through the use of a thicker plate or through the application of a polyurea coating, although there is a weight penalty associated with the additional material which should be considered. Corresponding computational models of the experiments have been conducted with the commercial finite element code LS-Dyna. The simulations are shown to have a high level of correlation to the experimental data.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Near Field Underwater Explosion Response of Polyurea Coated Composite Plates

et al. 2015

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“…Their dynamic performance subjected to air and underwater shocks becomes a hot topic in recent years [1][2][3][4][5][6][7][8][9]. The good anti-blast resistance capability lies in two aspects.…”

Section: Introductionmentioning

confidence: 99%

Mitigating performance of elastic graded polymer foam coating subjected to underwater shock

Chen

et al. 2015

Composites Part B: Engineering

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“…These results demonstrate that the PP interlayers improve the integrity of the front skin which may be useful in preventing water ingress following a blast. The underwater blast performance of composite sandwich panels with GFRP skins and poly-urea coatings was investigated by LeBlanc et al (2013). The panels were subjected to pressures of 10 MPa using a conical shock tube (CST) that produces a shock load equivalent to that of a charge detonated underwater.…”

mentioning

confidence: 99%

Blast resilience of composite sandwich panels with hybrid glass-fibre and carbon-fibre skins

Rolfe

Quinn

Sancho

et al. 2018

Multiscale and Multidiscip. Model. Exp. and Des.

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The development of composite materials through hybridisation is receiving a lot of interest; due to the multiple benefits, this may bring to many industries. These benefits include decreased brittle behaviour, which is an inherent weakness for composite materials, and the enhancement of mechanical properties due to the hybrid effect, such as tensile and flexural strength. The effect of implementing hybrid composites as skins on composite sandwich panels is not well understood under high strain rate loading, including blast loading. This paper investigates the blast resilience of two types of hybrid composite sandwich panel against a full-scale explosive charge. Two hybrid composite sandwich panels were mounted at a 15 m stand-off distance from a 100 kg nitromethane charge. The samples were designed to reveal whether the fabric layup order of the skins influences blast response. Deflection of the sandwich panels was recorded using high-speed 3D digital image correlation (DIC) during the blast. It was concluded that the combination of glass-fibre reinforced polymer (GFRP) and carbon-fibre reinforced polymer (CFRP) layers in hybrid laminate skins of sandwich panels decreases the normalised deflection compared to both GFRP and CFRP panels by up to 41 and 23%, respectively. The position of the glass-fibre and carbon-fibre layers does not appear to affect the sandwich panel deflection and strain. A finite element model has successfully been developed to predict the elastic response of a hybrid panel under air blast loading. The difference between the maximum central displacement of the experimental data and numerical simulation was ca. 5% for the hybrid panel evaluated.

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Effect of polyurea coatings on the response of curved E-Glass/Vinyl ester composite panels to underwater explosive loading

Cited by 70 publications

References 16 publications

Near Field Underwater Explosion Response of Polyurea Coated Composite Plates

Near Field Underwater Explosion Response of Polyurea Coated Composite Plates

Mitigating performance of elastic graded polymer foam coating subjected to underwater shock

Blast resilience of composite sandwich panels with hybrid glass-fibre and carbon-fibre skins

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