Investigation of mechanical properties of sandwich panels made of paper honeycomb core and wood composite skins by experimental testing and finite element (FE) modelling methods

Chen, Zheng; Yan, Ning; Sam-Brew, Solace; Smith, Greg; Deng, Jing‐Fa

doi:10.1007/s00107-014-0782-z

Cited by 22 publications

(11 citation statements)

References 15 publications

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“…Some of the first comprehensive studies on the application, manufacturing, and properties of paper honeycomb panels were done by Hänel and Weinert [ 12 ] and Poppensieker and Thömen [ 13 ]. Many studies were made to evaluate the mechanical properties of honeycomb panels [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. Other studies investigated the possibilities for optimisation of the structure of paper honeycomb panels.…”

Section: Introductionmentioning

confidence: 99%

Structural Application of Lightweight Panels Made of Waste Cardboard and Beech Veneer

et al. 2021

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In recent years, the furniture design trends include ensuring ergonomic standards, development of new environmentally friendly materials, optimised use of natural resources, and sustainably increased conversion of waste into value-added products. The circular economy principles require the reuse, recycling or upcycling of materials. The potential of reusing waste corrugated cardboard to produce new lightweight boards suitable for furniture and interior applications was investigated in this work. Two types of multi-layered panels were manufactured in the laboratory from corrugated cardboard and beech veneer, bonded with urea-formaldehyde (UF) resin. Seven types of end corner joints of the created lightweight furniture panels and three conventional honeycomb panels were tested. Bending moments and stiffness coefficients in the compression test were evaluated. The bending strength values of the joints made of waste cardboard and beech veneer exhibited the required strength for application in furniture constructions or as interior elements. The joints made of multi-layer panels with a thickness of 51 mm, joined by dowels, demonstrated the highest bending strength and stiffness values (33.22 N∙m). The joints made of 21 mm thick multi-layer panels and connected with Confirmat had satisfactory bending strength values (10.53 N∙m) and Minifix had the lowest strength values (6.15 N∙m). The highest stiffness values (327 N∙m/rad) were determined for the 50 mm thick cardboard honeycomb panels connected by plastic corner connector and special screw Varianta, and the lowest values for the joints made of 21 mm thick multi-layer panels connected by Confirmat (40 N∙m/rad) and Minifix (43 N∙m/rad), respectively. The application of waste corrugated cardboard as a structural material for furniture and interiors can be improved by further investigations.

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Section: Introductionmentioning

confidence: 99%

Structural Application of Lightweight Panels Made of Waste Cardboard and Beech Veneer

et al. 2021

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“…Cellular paperboard consists of two outer layers and a honeycomb core (see Figure 1). [11] presented studies on lightweight multilayer panels with different honeycomb core structures made of paper, and wood cladding composite. By using experimental tests and finite element modelling methods, the authors presented the impacts of the construction parameters of honeycomb and the properties of the core material and cladding on the mechanical properties of light laminated panels.…”

Section: Introductionmentioning

confidence: 99%

Calculation of Honeycomb Paperboard Resistance to Edge Crush Test

2020

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The article presents the method of calculating the edge crush test (ECT) of honeycomb paperboard. Calculations were made on the basis of mechanical properties of paper raw materials used for the production of cellular paperboard and geometrical parameters describing cellular paperboard. The presented method allows ECT calculation of honeycomb paperboard in the main directions in the paperboard plane; i.e., machine direction (MD) and cross direction (CD). The proposed method was verified by comparing the results of calculations with the results of ECT measurements of paperboard with different geometrical parameters made of different fibrous materials.

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“…However, a modelling approach to capture forming induced issues and to enable optimisation of process parameters does not currently exist. Almost all available modelling techniques address sandwich load-carrying capability including damage prediction [11][12][13][14]. A model would be required for simulation of the sandwich forming process in order to predict forming-induced defects.…”

Section: Introductionmentioning

confidence: 99%

Simulation of the forming process for curved composite sandwich panels

et al. 2019

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For affordable high-volume manufacture of sandwich panels with complex curvature and varying thickness, fabric skins and a core structure are simultaneously press-formed using a set of matched tools. A finite-element-based process simulation was developed, which takes into account shearing of the reinforcement skins, multi-axial deformation of the core structure, and friction at the interfaces. Meso-scale sandwich models, based on measured properties of the honeycomb cell walls, indicate that panels deform primarily in bending if out-of-plane movement of the core is unconstrained, while local through-thickness crushing of the core is more important in the presence of stronger constraints. As computational costs for meso-scale models are high, a complementary macro-scale model was developed for simulation of larger components. This is based on experimentally determined homogenised properties of the honeycomb core. The macro-scale model was employed to analyse forming of a generic component. Simulations predicted the poor localised conformity of the sandwich to the tool, as observed on a physical component. It was also predicted accurately that fibre shear angles in the skins are below the critical angle for onset of fabric wrinkling.

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Investigation of mechanical properties of sandwich panels made of paper honeycomb core and wood composite skins by experimental testing and finite element (FE) modelling methods

Cited by 22 publications

References 15 publications

Structural Application of Lightweight Panels Made of Waste Cardboard and Beech Veneer

Structural Application of Lightweight Panels Made of Waste Cardboard and Beech Veneer

Calculation of Honeycomb Paperboard Resistance to Edge Crush Test

Simulation of the forming process for curved composite sandwich panels

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