This research used the new ISO 23478-2022 standard as a reference for the calculation of mechanical properties of N-finity, and to understand the failure modes in compression. Previous studies have investigated the mechanical properties of laminated bamboo lumber (LBL), however no study has evaluated the mechanical properties of LBL according to the recently published ISO 23478-2022. The compression testing programme in parallel and perpendicular-to-grain directions were conducted. The measured elastic stiffness properties and compressive strengths show anisotropy with higher compressive strength and stiffness parallel-to-grain direction as compared to those at the transversal directions. The observed failure modes at the parallel-to-grain direction exhibited a mixed mode failure, whereas perpendicular-to-grain directions exhibited failure with longitudinal splitting with crack propagation rupture. This finding can be quantified using Hills failure criterion principle to define the failure criterion and to estimate the Hill’s yield failure ratios.
Properties of Multilayer Transparent Bamboo Materials
Study on Compression Performance of Laminated Bamboo
Shear Parallel to Grain (a) results; specimen failures in (b) laminated
Laminated bamboo general manufacturing process in China.
Zhenhua Xiong's research works CHINA COMMUNICATIONS CONSTRUCTION, Beijing (CCCC) and other places
Mechanical properties of laminated bamboo lumber N-finity according to ISO 23478-2022, Journal of Wood Science
Forests, Free Full-Text
Experimental analysis of nailed LBL-to-LBL connections loaded parallel to grain
Morphology of bamboo strips sample with phenolic resin
A review on mechanical behavior of laminated bamboo lumber connections - ScienceDirect
Journal of Wood Science