Underwater Dynamic Collapse of Sandwich Composite Structures

Kishore, Shyamal; Parrikar, Prathmesh Naik; DeNardo, Nicholas A.; Shukla, Arun

doi:10.1007/s11340-019-00470-x

Cited by 13 publications

(3 citation statements)

References 35 publications

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“…DeNardo et al 96 and Kishore et al 97 carried out experimental studies to explore the effect of double-hull and sandwich composite shell constructions, respectively. The authors explored the effects of adding foams of varying density as core in these concentric double hull and sandwich structures.…”

Section: Implosion Phenomena In Marine Composite and Sandwich Structuresmentioning

confidence: 99%

Advances in naval composite and sandwich structures for blast and implosion mitigations

Wanchoo

Kishore

Pandey

et al. 2022

Jnl of Sandwich Structures & Materials

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Naval structures owing to their operational conditions get exposed to extreme loadings and environments. Along with blasts generated through explosion events, enclosed naval structures are also vulnerable to structural dynamic instability, leading to implosion and catastrophic failure. This review explores state of the art in research work carried out to understand the deformation and damage mechanism of naval sandwich structures both on the surface and deep-sea environments. A brief overview of the current understanding regarding the response of sandwich structures to air shock, underwater shock, and implosion owing to dynamic instability is provided. The effect of environmental conditions on the dynamic response of these structures is also discussed. The article further discusses various mitigation techniques proposed to improve the blast and implosion mitigation of sandwich structures and points out the current research gaps existing in the common understanding.

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Section: Implosion Phenomena In Marine Composite and Sandwich Structuresmentioning

confidence: 99%

Advances in naval composite and sandwich structures for blast and implosion mitigations

Wanchoo

Kishore

Pandey

et al. 2022

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

show abstract

“…For thin-walled underwater structures, a primary failure mechanism is instability in the form of collapse. In the past, extensive research efforts have been devoted towards understanding the collapse of cylindrical shell structures (e.g., underwater pipelines, deep-sea submersibles) due to high hydrostatic pressure [11,12,13,14,15]. In comparison, knowledge about the response of this type of structures to a near-field explosion is still far from complete.…”

Section: Introductionmentioning

confidence: 99%

Computational analysis of bubble–structure interactions in near-field underwater explosion

Zhao

Gilbert

et al. 2022

International Journal of Solids and Structures

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“…As for the underwater pressure shells, the strength and buckling of fiberreinforced composites are two important design factors [6][7][8]. In the past few years, several analytical and numerical papers are available.…”

Section: Introductionmentioning

confidence: 99%

Multi-scale strength and buckling analysis of 3D woven composite spherical shells subjected to hydrostatic pressure

Wang

Liu

Yang

et al. 2020

Journal of Industrial Textiles

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3D woven composites are considered as the ideal materials for subsea pressure shells owing to their exhibit excellent out-of-plane properties of delamination resistance and compressive damage resistance, which greatly improves the bearing capacity of the structure. This paper presents the influence of the radius-to-thickness ratio and the initial defects on the 3D woven composite spherical shells subjected to external hydrostatic pressure using the multi-scale finite element and theoretical methods. Two kinds of typical 3D woven structures, curved shallow-crossing linking 2.5D, and straight shallow-crossing linking 2.5D, are selected. The results show that the proposed multi-scale finite element method is capable of accurately predicting the strength and buckling behavior of 3D woven composite spherical shells under external hydrostatic pressure loadings, validated by the comparison of theoretical predictions. Furthermore, the fabric structures, radius-to-thickness ratio, and initial defects affect importantly the mechanical behavior of 3D woven composites pressure shells.

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Underwater Dynamic Collapse of Sandwich Composite Structures

Cited by 13 publications

References 35 publications

Advances in naval composite and sandwich structures for blast and implosion mitigations

Advances in naval composite and sandwich structures for blast and implosion mitigations

Computational analysis of bubble–structure interactions in near-field underwater explosion

Multi-scale strength and buckling analysis of 3D woven composite spherical shells subjected to hydrostatic pressure

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