Compressive and bending behaviours of wood-based two-dimensional lattice truss core sandwich structures

Jin, Mingmin; Hu, Yingcheng; Wang, Bing

doi:10.1016/j.compstruct.2015.01.033

Cited by 64 publications

(23 citation statements)

References 38 publications

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“…Woven corrugated cores from a previous study also resulted in a sandwich structure that showed an excellent skin‐core delamination resistance . Truss core‐based sandwich structures, such as lattice truss core sandwich panels and pyramidal truss core sandwich structures, have also drawn significant attention in past years, which exhibit good energy‐absorption ability mainly for out‐of‐phase bending and compressive loads.…”

Section: Sandwich Structuresmentioning

confidence: 99%

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: Sandwich Structuresmentioning

confidence: 99%

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

et al. 2020

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“…Surfaces from poplar laminated veneer lumber (LVL) decrease the flexural modulus 4.30 GPa and strength to 7.74 MPa according to Jin and Wang [51].…”

Section: Overview Of the Resultsmentioning

confidence: 99%

Flexural behavior of sandwich panels with cellular wood, plywood stiffener/foam and thermoplastic composite core

Labans

Kalniņš

Bisagni

2017

Jnl of Sandwich Structures & Materials

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A series of experimental tests have been carried out on three types of novel sandwich panels mainly designed for application in lightweight mobile housing. Two types of the panels are manufactured entirely from wood-based materials while the third one presents a combination of plywood for surfaces and corrugated thermoplastic composite as a core part. All sandwich panels are designed to allow rapid one-shot manufacturing. Mechanical performance has been evaluated in four-point bending comparing the data to the reference plywood board. Additionally, finite element simulations were performed to evaluate global behavior, stress distribution and provide the basis for a reliable design tool. Obtained results show sufficient mechanical characteristics suitable for floor and wall units. Compared to a solid plywood board, sandwich alternative can reach up to 42% higher specific stiffness, at the same time maintaining sufficient strength characteristics.

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“…In terms of the stiffness and strength of honeycomb panels, sandwich panels with the following types of core are much stronger: coating (Kavermann and Bhattacharyya 2019;Smardzewski and Jasińska 2016), lattice truss (Jin et al 2015;Xu et al 2016), pyramidal (Qi and Ma 2018;Xiong et al 2014a, b;Xu et al 2015), kagome (Klimek et al 2016) cubic or cubic + octet (isomax) (Yazdani Sarvestani et al 2018). Wang (2019) made a comprehensive overview on the development of the innovative honeycomb-based structures in the past two decades.…”

Section: Introductionmentioning

confidence: 99%

Compression and low velocity impact response of wood-based sandwich panels with auxetic lattice core

2021

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The research determined the resistance to compression and low velocity impact of wood-based sandwich panels, the face sheet made of high-density fiber board, and high pressure laminate, while its auxetic lattice core was made by 3D printing using LayWood bio-composite filament. The core's auxetic property (i.e. exhibiting negative Poisson's ratio) was observed within the planes parallel to the facings. The ability of particular types of multilayer panels to absorb the energy was also determined. Based on the analysis of the obtained test results, it was proven that the core denoted as B, with inclination angle of the cell ribs $${{\varphi }_{x}=\varphi }_{y}=65^\circ$$ φ x = φ y = 65 ∘ , shows the highest compressive strength. It was determined that the dynamic load causes a very high overload in high-density fiber board face sheets. This results in damage to the sandwich panel surface and core structure. Cells of type B favorably minimize the differences in absorbed energy when using different face sheets and the energy value for low velocity impact. Taking into account the amount of absorbed energy, the most attractive is the panel with the D-type orthotropic core characterized by an inclination angle of the cell ribs $${\varphi }_{x}= 30^\circ , {\varphi }_{y}=60^\circ$$ φ x = 30 ∘ , φ y = 60 ∘ . The amount of energy absorbed by samples with high-density fiberboard face sheets increases significantly depending on the impactor's energy. For panels with face sheets manufactured from high-pressure laminate, the amount of energy absorbed decreases.

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Compressive and bending behaviours of wood-based two-dimensional lattice truss core sandwich structures

Cited by 64 publications

References 38 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

Flexural behavior of sandwich panels with cellular wood, plywood stiffener/foam and thermoplastic composite core

Compression and low velocity impact response of wood-based sandwich panels with auxetic lattice core

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