Core configuration and panel reinforcement affect compression properties of wood-based 2-D straight column lattice truss sandwich structure

Qin, Jiankun; Zheng, Tengteng; Li, Shuai; Cheng, Yanpeng; Xu, Qiang; Ye, Gaoyuan; Hu, Yingcheng

doi:10.1007/s00107-019-01410-1

Cited by 8 publications

(1 citation statement)

References 18 publications

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“…Absorption capability is an important factor for the safety of wooden construction. Qin et al (2019) examined the effects of the core configuration on the out-of-plane compressive behavior of a wood-based 2-D straight column lattice truss sandwich structure. Their results showed that the ultimate strength in the out-of-plane compression of the eight different configurations followed a linear relationship with the relative density of the core.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of the wood-based X-type lattice sandwich structure

Zheng

Cheng

et al. 2020

BioRes

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In this study, a wood-based X-type lattice sandwich structure was fabricated by an insertion glue method using medium density fiberboard (MDF) and plywood as panels. Birch was used for the core. The mechanical properties and failure modes of the wood-based X-type lattice sandwich structure were investigated by an out-of-plane compressive test, a short beam shear test, and their matching analytical models. The out-of-plane compressive test and the compression analytical model showed that the failure mode of the plywood and birch combination was mainly shear failure in the core. The cores were broken or had sliding surfaces, while the failure mode of the MDF and birch combination was mainly shear failure of the core at both ends. Although the compression properties of the MDF and birch combination were better, the specific strength and modulus of the plywood and birch combination was larger, which align with the characteristics of lightweight and strong strength. The failure mode of the plywood and birch combination was delamination at both ends of the panel or core breakage, which indicated that this combination had better short beam shear properties. The theoretical models of the compressive /short beam shear properties were in good agreement with experimental results obtained for the plywood and birch combination.

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Section: Introductionmentioning

confidence: 99%