Development of the fire-retardant sandwich structure using an aramid/glass hybrid composite and a phenolic foam-filled honeycomb

Kim, Minkook; Choe, Jaeheon; Lee, Dai Gil

doi:10.1016/j.compstruct.2016.09.029

Cited by 45 publications

(25 citation statements)

References 17 publications

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“…Modern constructions and large products are often produced of prefabricated multi-layered mechanical structures, which exhibit high specific stiffness, strength, environmental resistance and thermal insulation characteristics [2,3]. Such mechanical structures are widely used in residential and industrial buildings [4,5], thermal and nuclear power stations, space stations, ships [6][7][8] and airplanes [9].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Multi-layered Fire Doors with Gypsum Layer Exposed to Fire

Guobys

Mokšin

2021

Period. Polytech. Civil Eng.

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This article analyzes gypsum board dehydration effect on heat conductivity and deformation of multi-layered mechanical structures subjected to temperature changes. Specially designed structures (fire doors) consisting of steel sheets with stone wool and gypsum insulating layers in between were heated in furnace for a specified period of time of not less than 60 min. Temperature versus time curves and deformations of multi-layered structures were obtained. Experimental results were verified by numerical simulation. Experimental data was found to be in good agreement with numerical simulation results. The percent differences between door temperatures from simulation and fire test don’t exceed 9 %. This shows that thermal behavior of such multi-layered structures can be investigated numerically avoiding time-consuming and expensive fire tests. The data obtained allowed to calculate convective heat transfer coefficient of gypsum board, which was fitted into multi-layered mechanical structure. It was found that it is more advantageous to place gypsum layer in the middle of the structure rather than closer to the fire source in order to cool the structure more efficiently during fire.

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Section: Introductionmentioning

confidence: 99%

“…They can be used as fixed partitions or mobile constructions. However, poor fire resistance is the critical problem of multi-layered structures in engineering applications [2,5,9]. Most of the materials used in such structures are flammable [2].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Multi-layered Fire Doors with Gypsum Layer Exposed to Fire

Guobys

Mokšin

2021

Period. Polytech. Civil Eng.

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“…Polyurethane (PUR), polyethylene (PE), and polystyrene (PS) are widely used as core materials, but they have limited high-temperature resistance [21] and, when exposed to fire, they deteriorate, ignite, and release toxic gases. A valid alternative in this respect is represented by phenolic resins, which show excellent fire properties [22] including low, non-toxic fume generation. Phenolic foam (PF) is a thermosetting cellular material that is widely used in the construction industry.…”

Section: Introductionmentioning

confidence: 99%

Vibro-Acoustic Characterization of a Composite Structure Featuring an Innovative Phenolic Foam Core

2019

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Composite panels are being increasingly used in many applications because they can combine several interesting properties, such as high load-bearing capacity, low weight, and excellent thermal insulation. Different core materials can be used for composite sandwich panels, like polystyrene, mineral wool, polyurethane, glass wool, or rigid phenolic foam, which is considered the rigid plastic foam with the best fire-proof properties. During the research and development phase, the use of simulation tools is often required for the improvement of the mechanical behavior of the material. The aim of the paper is to characterize some vibro-acoustic parameters of a sandwich material with phenolic open-cell foam core. The sound transmission loss of the structure is calculated based on its flexural behavior, represented through a frequency-dependent “apparent” bending stiffness which is estimated by natural frequency vibration tests on beam specimens. The comparison between sound transmission loss predictions and measurements in sound transmission suites according to ISO 10140-2 is presented and discussed. Finally, the early-stage prediction potentiality of the mathematical model is investigated when only nominal information is available on the constituent layers, showing that particular attention should be paid to the modifications introduced by the manufacturing process.

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“…Most of the materials that are used for the polymer matrix of the face sheets (epoxy, vinyl ester, polyester resin) and the core materials (polymeric foam, balsa wood, honeycomb) are flammable [5]. In the presence of fire or high temperature, the sandwich structures will decompose, ignite and burn, releasing heat, smoke, toxic gases, which can cause severe injury and death [6] [7]. Therefore, to use in structural applications, the fire resistance of the sandwich structures should be improved.…”

Section: Introductionmentioning

confidence: 99%

Sandwich Structure Composite with Expandable Graphite Filled or Coated: Evaluation of Flame Retardancy and Mechanical Performances

Zhu¹,

Li²,

Ji³

et al. 2019

OJSST

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Sandwich composites are increasingly used in high-performance application due to their high specific stiffness, strength and thermal insulation. The sandwich composites were developed using honeycomb and carbon fibre reinforced composite face sheet in this study. Expandable graphite (EG) weighting 5 wt% and 10 wt% were filled in honeycomb or coated on face sheet to improve the fireproof performance. The vertical burning test, cone calorimetry test, thermal insulation analysis, scanning electron microscopy and mechanical test were taken into account. With the increase of EG in the sandwich composites, a significant improvement on flame retardancy with better thermal insulation, lower values of peak heat release rate and MAHRE were confirmed for sandwich composite with EG both coated and filled. In addition, the sandwich with EG coated on face sheet presented better fire resistivity and thermal insulation properties when compared to that with EG filled in honeycomb. However, more total smoke release was also observed for EG coated composites due to partial combustion of resin within sufficient heat and oxygen. Furthermore, no significant effect on the mechanical properties of composites was confirmed from both fireproof approaches.

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Development of the fire-retardant sandwich structure using an aramid/glass hybrid composite and a phenolic foam-filled honeycomb

Cited by 45 publications

References 17 publications

Investigation of Multi-layered Fire Doors with Gypsum Layer Exposed to Fire

Investigation of Multi-layered Fire Doors with Gypsum Layer Exposed to Fire

Vibro-Acoustic Characterization of a Composite Structure Featuring an Innovative Phenolic Foam Core

Sandwich Structure Composite with Expandable Graphite Filled or Coated: Evaluation of Flame Retardancy and Mechanical Performances

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