Geometrical and mechanical properties of polyamide PA 12 bonds in composite advanced pore morphology (APM) foam structures

Kovačič, Aljaž; Novak, Nejc; Vesenjak, Matej; Dubrovski, Polona Dobnik; Ren, Zoran

doi:10.1016/j.acme.2018.01.004

Cited by 9 publications

(4 citation statements)

References 23 publications

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“…Using foam inside the core can improve the mechanical or chemical properties such as energy absorption, reducing vibration, changing the heat transfer rate and moisture, and also sound transmission. 19,25,26 Fu and Sadeghian 27 studied the flexural and shear characteristics of bio-based sandwich beams made of hollow and foam-filled paper honeycomb cores and flax fiber composite skins. Betts et al 28 investigated the experimental behavior and design-oriented analysis of sandwich beams with bio-based composite facings and foam cores.…”

Section: Introductionmentioning

confidence: 99%

Compressive and bending behavior of foam-filled composite sandwich panel with novel M-shaped core reinforced by nano-silica

Khaledi

Rostamiyan

2022

Journal of Thermoplastic Composite Materials

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The present paper has experimentally determined the flexural strength of a glass fiber reinforced polymer sandwich panel with a novel M-shaped lattice core reinforced by nano-silica (nano-SiO2). For this purpose, a polymer composite sandwich panel with an M-shaped core made of glass-epoxy fiber has been fabricated in this experiment using the vacuum-assisted resin transfer molding method. Afterward, polyurethane foam (PU) was injected into the empty space of the sandwich panel. In order to determine the flexural strength of the sandwich panels, they have been subjected to three-point bending and compressive loads. From the results of the study, it was figured out that: (a) Adding 1–3 wt% of nano-silica into the glass fiber had the most desirable effects on the enhancement of flexural strength of the sandwich panels (b) PU has improved the flexural strength of sandwich panels (c) The new M-shaped core can well postpone the buckling and failure of the composite sandwich structures.

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Section: Introductionmentioning

confidence: 99%

Compressive and bending behavior of foam-filled composite sandwich panel with novel M-shaped core reinforced by nano-silica

Khaledi

Rostamiyan

2022

Journal of Thermoplastic Composite Materials

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“…Using foam inside the core can improve the mechanical or chemical properties such as energy absorption, reducing vibration, changing the heat transfer rate and moisture, and also sound transmission. [ 11,17,18 ] Fu and Sadeghian [ 19 ] studied the flexural and shear characteristics of bio‐based sandwich beams made of hollow and foam‐filled paper honeycomb cores and flax fiber composite skins. Betts et al [ 20 ] investigated the experimental behavior and design‐oriented analysis of sandwich beams with bio‐based composite facings and foam cores.…”

Section: Introductionmentioning

confidence: 99%

Flexural strength of foam‐filled polymer composite sandwich panel with novel M‐shaped core reinforced bynano‐SiO₂

Khaledi

Rostamiyan

2021

Polymer Composites

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Present article has experimentally determined the flexural strength of carbon fiber reinforced polymer sandwich panel reinforced by nano-SiO 2 with novel M-shaped lattice core. For this purpose, a polymer composite sandwich panel with M-shaped core made of carbon-epoxy fiber has been fabricated in this experiment. In order to fabricate the sandwich panels, the vacuum assisted resin transfer molding has been used to achieve a laminate without any fault.Afterward, polyurethane foam (PU) has been injected into the core of the sandwich panel. In order to determine the flexural strength of the sandwich panels, they have been subjected to three-point bending loads. From the results of the study, it was figured out that: a) Adding 1 to 3 wt% of nano-SiO 2 into the carbon fiber had the most desirable effects on the enhancement of flexural strength of the sandwich panels. b) PU has improved the flexural strength of sandwich panels. c) The new M-shaped core can well postpone the buckling and failure of the composite sandwich structures.

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“…They can be produced in different diameters from 3 to 15 mm with a bulk density between 500 and 1000 kg/m 3 [ 4 ]. APM foam elements can be used as un-bonded or bonded hybrid cellular structures [ 4 , 5 ], where the bonding is usually performed using a polymer (e.g., Polyamide PA12, Araldite AT 1-1) [ 6 , 7 , 8 ]. When all the voids between the spherical APM elements are filled with a polymer filler, an APM-based polymer matrix foam is obtained with improved mechanical properties [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Advanced Pore Morphology (APM) Foam Elements Using Compressive Testing and Time-Lapse Computed Microtomography

et al. 2021

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Advanced pore morphology (APM) foam elements are almost spherical foam elements with a solid outer shell and a porous internal structure mainly used in applications with compressive loading. To determine how the deformation of the internal structure and its changes during compression are related to its mechanical response, in-situ time-resolved X-ray computed microtomography experiments were performed, where the APM foam elements were 3D scanned during a loading procedure. Simultaneously applying mechanical loading and radiographical imaging enabled new insights into the deformation behaviour of the APM foam samples when the mechanical response was correlated with the internal deformation of the samples. It was found that the highest stiffness of the APM elements is reached before the appearance of the first shear band. After this point, the stiffness of the APM element reduces up to the point of the first self-contact between the internal pore walls, increasing the sample stiffness towards the densification region.

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Geometrical and mechanical properties of polyamide PA 12 bonds in composite advanced pore morphology (APM) foam structures

Cited by 9 publications

References 23 publications

Compressive and bending behavior of foam-filled composite sandwich panel with novel M-shaped core reinforced by nano-silica

Compressive and bending behavior of foam-filled composite sandwich panel with novel M-shaped core reinforced by nano-silica

Flexural strength of foam‐filled polymer composite sandwich panel with novel M‐shaped core reinforced bynano‐SiO₂

Analysis of Advanced Pore Morphology (APM) Foam Elements Using Compressive Testing and Time-Lapse Computed Microtomography

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Geometrical and mechanical properties of polyamide PA 12 bonds in composite advanced pore morphology (APM) foam structures

Cited by 9 publications

References 23 publications

Compressive and bending behavior of foam-filled composite sandwich panel with novel M-shaped core reinforced by nano-silica

Compressive and bending behavior of foam-filled composite sandwich panel with novel M-shaped core reinforced by nano-silica

Flexural strength of foam‐filled polymer composite sandwich panel with novel M‐shaped core reinforced bynano‐SiO2

Analysis of Advanced Pore Morphology (APM) Foam Elements Using Compressive Testing and Time-Lapse Computed Microtomography

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Flexural strength of foam‐filled polymer composite sandwich panel with novel M‐shaped core reinforced bynano‐SiO₂