Finite element analysis of foam-filled honeycomb structures under impact loading and crashworthiness design

Mozafari, Hozhabr; Khatami, Soroush; Molatefi, Habibollah; Crupi, Vincenzo; Epasto, Gabriella; Guglielmino, Eugenio

doi:10.1080/13588265.2016.1140710

Cited by 57 publications

(22 citation statements)

References 28 publications

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“…This research indicated the potential for PUF‐filled honeycomb sandwich composites in moving structures such as automobiles. Three different kinds of PUFs based on density were also used in another other study as fillers for honeycomb sandwich structures conducted by Mozafari et al A similar analysis was carried out considering the impact response and crashworthiness of foam‐filled and unfilled sandwich specimens. Three different foams (F1, F2 and F3 with varying densities of 65, 90 and 145 kg/m 3 ) were used to fill three different kinds of honeycombs (HC1, HC2 and HC3) in the studies.…”

Section: Puf Core Sandwich Structuresmentioning

confidence: 99%

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A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

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Sandwich composites with a polyurethane foam (PUF) core have become a versatile set of materials with applications ranging from basic construction elements to advanced engineering materials. This diverse range of applications has provided these sandwich materials with a distinctive position in today's engineering world. This review focuses on the broad research that has been carried out on PUF core‐based sandwich composites over the years—especially in the last decade. Thorough details have been presented focusing on basic PUF core sandwich structures, advanced PUF core sandwich composites with different kinds of reinforcements and complex structures such as hybrid sandwich panels. All the research presented here has been categorized carefully, such as the types of materials used in various studies, the types of reinforcements and testing techniques used, including mechanical, electrical, dynamic, thermal and acoustic methods etc. Comparisons have also been made based on similar materials, similar testing procedures and similar application areas. Research areas have been highlighted by giving a deep insight into the most promising research, manufacturing techniques and improvement procedures. Major consumption areas and application sectors for PUF core sandwich composites have also been discussed in this review. Finally, conclusions have been made based on the results found from a literature investigation.

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Section: Puf Core Sandwich Structuresmentioning

confidence: 99%

“…Ratio of specific absorbed energy to peak compression force for different specimens [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Puf Core Sandwich Structuresmentioning

confidence: 99%

A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

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“…The strain-stress characteristic for foamed materials created based on the data from specialist literature [2,7,12,15] is shown in Fig. 3.…”

Section: Model Of the Column Energy Absorbermentioning

confidence: 99%

Numerical Crush Analysis of Thin-Walled Aluminium Columns with Square Cross-Section and a Partial Foam Filling

Ferdynus¹,

Rogala²

2019

Adv. Sci. Technol. Res. J.

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The article presents the results of numerical crush simulations of thin-walled structures with a square cross-section and partial filling with foamed material. The influence of the length of the filling on the values of the energy efficiency index was analysed. Four types of foamed material were subjected to numerical analysis. The research was conducted using FEM in Abaqus 6.14 program. The obtained results were presented in the following forms: load-shortening characteristics, tables and diagrams. The best energy absorbing properties are shown by models filled with aluminium and polyethylene terephthalate foam.

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“…The response of bare and foam filled honeycomb structure under compression loading has been studied [6]. Foam filled structure can absorb more kinetic energy and apply higher reaction force comparing to bare honeycomb structure [7][8][9][10][11]. Silva and Hunt [12] have studied the buckling of sandwich plates with isotropic and orthotropic cores by analytical method.…”

Section: Introductionmentioning

confidence: 99%

“…The mechanical properties of a honeycomb such as failure mechanisms and deformation modes have been studied by many scientists. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. They analyzed its in-plane and out-of-plane mechanical behaviors (e.g., buckling or plastic collapse).…”

Section: Introductionmentioning

confidence: 99%

Collapse of honeycomb cell as a result of buckling or plastic hinges, analytical, numerical and experimental study

Galehdari

Kadkhodayan

2019

J Braz. Soc. Mech. Sci. Eng.

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The honeycomb structure collapse during energy absorption and deformation is considered as one of the important subjects for researchers. In this paper, a combined analytical, numerical and experimental analysis on the collapse load of hexagonal aluminum honeycombs due to buckling or plastic collapse of the unit cells under flatwise compressive loading is performed. To analyze the collapse load, some analytical equations are derived for buckling and forming plastic hinges using the frame element. The amounts of these loads are measured for a single-row aluminum honeycomb structure, and the smallest one is selected as collapse load. The results show that the main cause of structure collapse is the formation of plastic hinges. To evaluate the analytical results and to propose a valid numerical simulation method, the quasi-static pressure test is performed. Furthermore, the structure collapse is also simulated by Abaqus software. The maximum difference between the numerical and experimental collapse load is 2.5%. Moreover, the deformed shape of the structure is very similar to the experimental one. The numerical simulation method and the proposed analytical relations can be used to analyze the collapse in other metal honeycomb structures.

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Finite element analysis of foam-filled honeycomb structures under impact loading and crashworthiness design

Cited by 57 publications

References 28 publications

A review on recent advances in sandwich structures based on polyurethane foam cores

A review on recent advances in sandwich structures based on polyurethane foam cores

Numerical Crush Analysis of Thin-Walled Aluminium Columns with Square Cross-Section and a Partial Foam Filling

Collapse of honeycomb cell as a result of buckling or plastic hinges, analytical, numerical and experimental study

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