Development of an innovative composite sandwich matting with GFRP facesheets and wood core

Abstract This paper presents the concept, design, fabrication, application and experimental validation of a new type of composite sandwich matting. The composite sandwich matting comprises a paulownia woods as core material and glass fiber reinforced plastic (GFRP) as face-skins and lattice-webs. The matting was fabricated by vacuum infusion moulding process (VIMP). The mechanical properties of the component materials were studied. Four-point bending tests were also performed to investigate the flexural properties of the paulownia wood core sandwich panels. The experimental results showed that the failure mode of the structures was upper facesheet compressive yielding. The structures have good integrity against transverse load, there was a large plateau region after the initial failure and can prevent the structures from catastrophic failure. The finite element (FE) analysis showed a good agreement with the experimental results in predicting the load-displacement curve. The developed composite sandwich matting has been successfully used in military engineering, emergency rescue and large infrastructure construction owing to its excellent mechanical properties.

[1]  H. Fang,et al.  Flexural creep behavior of web reinforced GFRP-balsa sandwich beams: Experimental investigation and modeling , 2020 .

[2]  Weiqing Liu,et al.  An Investigation on Mechanical Behavior of Tooth-Plate-Glass-Fiber Hybrid Sandwich Beams , 2020 .

[3]  Y. Qiu,et al.  Interfacial characteristics of a carbon nanotube-polyimide nanocomposite by molecular dynamics simulation , 2020 .

[4]  Tongtong Zhang,et al.  Enhanced flexural properties of aramid fiber/epoxy composites by graphene oxide , 2019, Nanotechnology Reviews.

[5]  Yu Bai,et al.  Fiber reinforced composites sandwich panels with web reinforced wood core for building floor applications , 2018, Composites Part B: Engineering.

[6]  H. Fang,et al.  Damage characteristics analysis of GFRP-Balsa sandwich beams under Four-point fatigue bending , 2018, Composites Part A: Applied Science and Manufacturing.

[7]  N. R. Ramesh,et al.  Mechanical behavior of composite materials for marine applications – an experimental and computational approach , 2018, Journal of the Mechanical Behavior of Materials.

[8]  Yu Bai,et al.  Bending performance of GFRP-wood sandwich beams with lattice-web reinforcement in flatwise and sidewise directions. , 2017 .

[9]  Lyan I. Garcia,et al.  Full-Scale Instrumented Testing of Multiple Airfield Matting Systems on Soft Soil to Characterize Permanent Deformation , 2016 .

[10]  Tuba Alpyildiz,et al.  Enhanced mechanical performance of foam core sandwich composites with through the thickness reinforced core , 2015 .

[11]  Lorna J. Gibson,et al.  Mechanics of balsa (Ochroma pyramidale) wood , 2015 .

[12]  Z. Guan,et al.  The energy-absorbing behaviour of foam cores reinforced with composite rods , 2014 .

[13]  E. Morozov,et al.  Experimental, Theoretical and Numerical Investigation of the Flexural Behaviour of the Composite Sandwich Panels with PVC Foam Core , 2014, Applied Composite Materials.

[14]  Sindu Satasivam,et al.  Adhesively bonded modular GFRP web-flange sandwich for building floor construction , 2014 .

[15]  Isaac L. Howard,et al.  Full-Scale Instrumented Testing and Three-Dimensional Modeling of Airfield Matting Systems , 2014 .

[16]  Thomas Keller,et al.  GFRP-Balsa Sandwich Bridge Deck: Concept, Design, and Experimental Validation , 2014 .

[17]  Asifuz Zaman,et al.  A review on FRP composites applications and durability concerns in the construction sector , 2013 .

[18]  K. Fu,et al.  Experimental research on mechanical behaviors of GFRP bridge decks under alkaline solution , 2013 .

[19]  Thiru Aravinthan,et al.  Flexural behaviour of structural fibre composite sandwich beams in flatwise and edgewise positions , 2010 .

[20]  A. Harte,et al.  Bond quality at the FRP–wood interface using wood-laminating adhesives , 2009 .

[21]  Thomas Keller,et al.  Structural Concept, Design, and Experimental Verification of a Glass Fiber-Reinforced Polymer Sandwich Roof Structure , 2008 .

[22]  C. Borsellino,et al.  Experimental and numerical evaluation of sandwich composite structures , 2004 .

[23]  Norman A. Fleck,et al.  Collapse mechanisms of sandwich beams with composite faces and a foam core, loaded in three-point bending. Part I: analytical models and minimum weight design , 2004 .

[24]  S. Reese,et al.  Cohesive zone modeling for mode I facesheet to core delamination of sandwich panels accounting for fiber bridging , 2018 .

[25]  N. Takeda,et al.  Unloading response prediction of indentation loaded foam core sandwich structures using extended foam material model with tensile hardening , 2016 .

[26]  Yong-Ming Fan,et al.  EFFECT OF SURFACE FREE ENERGY OF WOOD-FLOUR AND ITS POLAR COMPONENT ON THE MECHANICAL AND PHYSICAL PROPERTIES OF WOOD-THERMOPLASTIC COMPOSITES , 2013 .