Investigations on air and underwater blast mitigation in polymeric composite structures – A review

Wanchoo, Piyush; Matos, Helio; Rousseau, Carl-Ernst; Shukla, Arun

doi:10.1016/j.compstruct.2020.113530

Cited by 35 publications

(21 citation statements)

References 135 publications

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“…Different from metal materials, the composite Nomex honeycomb sandwich structure mainly undergoes elastic deformation under impact. [ 35 ]…”

Section: Resultsmentioning

confidence: 99%

“…Different from metal materials, the composite Nomex honeycomb sandwich structure mainly undergoes elastic deformation under impact. [35] It is noteworthy that the curves of stages II and III are symmetrical to the left and right, indicating that the rates of panel bulge deformation and fallback are approximately equal. However, the peak of the curve does not show symmetry.…”

Section: Center Deflection Of the Back Facesheetmentioning

confidence: 91%

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Dynamic response of Nomex honeycomb sandwich panels subjected to aluminum foam projectile impact–An experimental study

Deng

Yang

et al. 2022

Polymer Composites

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The impact resistance of the Nomex honeycomb sandwich structure subjected to strong dynamic loading of lightweight and deformable projectiles was studied experimentally. The deformation process and failure modes of the sandwich panels were investigated by using a first-state gas gun to launch aluminum foam projectiles. 3D-DIC was presented to investigate the dynamic response in terms of response rate and deflection-profile history. And the impact resistance of three structures, namely single-layer sandwich, rubber-honeycomb sandwich and double-layer sandwich, was compared in relation to the load intensity. The results show that the dynamic response process of the sandwich panel can be divided into discrete deformation stage, concentrated deformation stage，elastic stage, vibration stage and stabilization stage. As the impulse increases, the maximum deflection of the back face-sheet continues to increase. Under the strong load of a light and deformable projectile, both rubber-honeycomb and double-layer honeycomb sandwich structures can effectively reduce the deflection change of the back face-sheet and improve the load-bearing capacity of the structure. Qualitatively analyzing the relationship between structure, loading, and performance can be carried out to provide guidance for structural design.

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“…Different from metal materials, the composite Nomex honeycomb sandwich structure mainly undergoes elastic deformation under impact. [ 35 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Center Deflection Of the Back Facesheetmentioning

confidence: 91%

Dynamic response of Nomex honeycomb sandwich panels subjected to aluminum foam projectile impact–An experimental study

Deng

Yang

et al. 2022

Polymer Composites

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“…A failure initiation chart, shown in Figure 22 was used as indicators of the onset of a failure mode for a range of charge masses, similarly done in Ref. [ 13 ]. Dotted lines between different failure modes were used to show the combination of failure modes at higher charge masses.…”

Section: Discussionmentioning

confidence: 99%

“…It was stated that the damage to the front face sheet is more detrimental to the performance of a sandwich panel than the damage to the back face sheet [ 12 ]. A comprehensive review of sandwich panels and laminates can be found in Wanchoo et al [ 13 ], which details the influence of the core and face sheets, and effect of stand-off distance.…”

Section: Introductionmentioning

confidence: 99%

Towards an Understanding of the Effect of Adding a Foam Core on the Blast Performance of Glass Fibre Reinforced Epoxy Laminate Panels

et al. 2021

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This paper presents insights into the blast response of sandwich panels with lightweight foam cores and asymmetric (different thicknesses) glass fibre epoxy face sheets. Viscously damped elastic vibrations were observed in the laminates (no core), while the transient response of the sandwich panels was more complex, especially after the peak displacement was observed. The post-peak residual oscillations in the sandwich panels were larger and did not decay as significantly with time when compared to the equivalent mass laminate panel test. Delamination was the predominant mode of failure on the thinner facesheet side of the sandwich panel, whereas cracking and matrix failure were more prominent on the thicker side (which was exposed to the blast). The type of constituent materials used and testing conditions, including the clamping method, influenced the resulting failure modes observed. A probable sequence of damage in the sandwich panels was proposed, based on the transient displacement measurements, a post-test failure analysis, and consideration of the stress wave propagation through the multilayered, multimaterial structure. This work demonstrates the need for detailed understanding of the transient behaviour of multilayered structures with significant elastic energy capacity and a wide range of possible damage mechanisms. The work should prove valuable to structural engineers and designers considering the deployment of foam-core sandwich panels or fibre reinforced polymer laminates in applications when air-blast loading may pose a credible threat.

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“…Composite materials are composed of two or more different substances, each with its own characteristics, combined to achieve superior properties than the constituent materials (Lapczyk and Hurtado, 2007;Guo et al, 2021). Having witnessed a rapidly development, composite materials are widely used in erospace, automotive, electrical, construction, and other fields (Ameri, Moradi and Talebitooti, 2020;Wanchoo et al, 2021). Active research on the dynamic behavior of composite materials includes rate dependence of mechanical properties (Wang et al, 2021), constitutive models (Zhan et al, 2021), damage evolution such as shear softening upon dynamic loading (Tang et al, 2017), and etc.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Anomalous Dynamic Responses of Fiber Metal Laminates Under Pulse Loading

Zhai¹,

Zhu

Mao³

et al. 2021

Front. Mater.

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Composed of metallic layers and composite plies, fiber metal laminates (FMLs) combine inherent advantages of metals and composites. The phenomenon of anomalous response behavior, in which the permanent deformation is in the opposite direction to the incoming pressure wave, has been discovered in dynamic responses of monolithic plate subjected to impulsive loading. In this study, dynamic responses of FML plates of various configurations are examined and compared against the responses of a monolithic plate using finite element analysis. It is found that under the load condition in which an anomalous dynamic behavior of an aluminum plate is observed, FMLs oscillate a few cycles before resting on permanent deformation, and the laminate thickness strongly affects the final deflection, which could be in the counter-intuitive direction or near the initial position of zero deflection depending on configuration and specification of FMLs. In addition, interaction of damage accumulation with deflection responses is investigated. The findings of this study can be useful for optimal design of FMLs intended for usage under extreme loadings.

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Investigations on air and underwater blast mitigation in polymeric composite structures – A review

Cited by 35 publications

References 135 publications

Dynamic response of Nomex honeycomb sandwich panels subjected to aluminum foam projectile impact–An experimental study

Dynamic response of Nomex honeycomb sandwich panels subjected to aluminum foam projectile impact–An experimental study

Towards an Understanding of the Effect of Adding a Foam Core on the Blast Performance of Glass Fibre Reinforced Epoxy Laminate Panels

Analysis of Anomalous Dynamic Responses of Fiber Metal Laminates Under Pulse Loading

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