Composite structures subjected to underwater explosive loadings: A comprehensive review

Tran, Phuong; Wu, Changlang; Saleh, Michael; Neto, Luiz Bortolan; Nguyen‐Xuan, H.; Ferreira, António

doi:10.1016/j.compstruct.2021.113684

Cited by 38 publications

(14 citation statements)

References 198 publications

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“… Based on the extensive experimental supported by a numerical simulation scheme (as discussed previously), there will be a need to use artificial intelligence/data mining with topology optimization to design sandwich structure(s) for a particular application. Some of the recent works in using artificial intelligence in design can be found in the following works [ 117 , 118 , 119 , 120 , 121 ]. Studies should also be performed to assess the effect of small damages on the crashworthiness or blast performance.…”

Section: Discussion and Research Directionmentioning

confidence: 99%

Sandwich Structures for Energy Absorption Applications: A Review

Tarlochan

2021

Materials

122

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It is crucial that proper engineering structures are designed as energy absorbers for high dynamic loading situations, such as accidents, blasts, or impacts. The role of such structures is to absorb the high kinetic energy as strain energy through irreversible deformation of the structure. Many types of energy absorbers were designed for different dynamic high strain rate applications. One of these structures are sandwich structures. The aim of this review paper is to provide a general review on the type of sandwich structures that have been designed as energy absorbers and their performance in crashworthiness and blast related applications. The focus is on the type of core structures being used, namely foam and architected cores. It was found from the review that sandwich structures are viable candidates for such applications not only because of their light weight, but also due to the high-energy absorption capabilities. The work presented in this review paper shows that the data from the literature on this topic are vast and do not converge to any particular sandwich structure design. This presents the potential future research direction in designing sandwich structures, which have wider application at different scales.

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Section: Discussion and Research Directionmentioning

confidence: 99%

Sandwich Structures for Energy Absorption Applications: A Review

Tarlochan

2021

Materials

122

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“…[ 383 ] In addition, other behaviors of thermoplastic PPCs (e.g., water absorption, [ 384 ] seawater, [ 144 ] temperature, [ 176 ] creep, [ 305 ] etc.) were also less investigated in the literature compared to that of conventional polymer composites (e.g., underwater, [ 385 ] temperature, [ 386 ] etc. ).…”

Section: Opportunities and Challengesmentioning

confidence: 99%

A review of the fabrication methods and mechanical behavior of continuous thermoplastic polymer fiber–thermoplastic polymer matrix composites

et al. 2022

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Thermoplastic polymer fiber-thermoplastic polymer matrix composites (PPCs or PRFPs), often recognized as self-reinforced or single polymer composites, are potential candidates for future advanced polymer composites because of various advantages (e.g., recyclability, formability, low-cost, ultra-lightweight, environmental friendliness, etc.). The manufacturability and mechanical behavior of these composites compared to conventional carbon-/glass-/aramid-fiberreinforced polymers is of great interest to the composites community, but there are a limited number of studies in this area. To this end, this paper reviewed fabrication methods with different processing parameters and mechanical behavior of uni-/multi-directional thermoplastic PPCs featuring continuous thermoplastic Lisa D. Fring and Madhusudhan R. Pallak contributed equally to this study.

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“…The epoxy thermoset exhibits excellent thermal and mechanical properties, good adhesion, and resistance to chemicals, as well as anti-corrosion and better electrical insulation properties . Various engineering and technological fields such as aerospace, marine, coatings, adhesives, electronic packaging, and construction − exploit the excellent performance and characteristics of epoxy thermosets. For many of these applications, epoxy polymers are often exposed to high humidity environments.…”

Section: Introductionmentioning

confidence: 99%

Reactive Molecular Dynamics Study of Hygrothermal Degradation of Crosslinked Epoxy Polymers

Karuth

Alesadi

Vashisth

et al. 2022

ACS Appl. Polym. Mater.

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Epoxy thermosets are often exposed to high humidity environments in various applications, undergoing reversible and irreversible degradation depending on the environment. This study presents a reactive molecular dynamics (MD) simulation framework to gain deeper insights into the hygrothermal aging process, which is essential to develop a targeted approach to combat water-assisted degradation in epoxy thermosets. By applying ReaxFF potential, an epoxy−amine network is created at low temperatures to avoid unwanted hightemperature side reactions, where the water molecules are added to achieve the desired degree of moisture contamination. The simulations show that in addition to the plasticization effect from the moisture ingress, the epoxy network shows recovery in mechanical properties and density due to the multi-site interaction of the water molecule with the electronegative sites within the network. Moreover, long-term exposure to humidity or direct exposure due to cracking can induce irreversible changes in the epoxy−amine network. The protonation of the water molecule and nucleophilic attack on the C−O bond of the ether linkages in the epoxy−amine networks are successfully simulated by applying reactive MD simulations. Remarkably, the simulations show that the selectivity of water molecules for the hydrolysis reaction in the epoxy network depends on the spatial arrangement and the steric hindrance of the network. This work provides molecular level insights into hygrothermal aging by elucidating the interplay between free volume and polarity of the network in the physical aging of the moist epoxy networks, paving a way for advanced design strategy toward better durability and performance of epoxy thermosets in humid environments.

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Composite structures subjected to underwater explosive loadings: A comprehensive review

Cited by 38 publications

References 198 publications

Sandwich Structures for Energy Absorption Applications: A Review

Sandwich Structures for Energy Absorption Applications: A Review

A review of the fabrication methods and mechanical behavior of continuous thermoplastic polymer fiber–thermoplastic polymer matrix composites

Reactive Molecular Dynamics Study of Hygrothermal Degradation of Crosslinked Epoxy Polymers

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