Bamboo material grading method and system

Abstract

The invention provides a bamboo material grading method and system. The method comprises the following steps of (1) dividing a cross section region of a to-be-graded bamboo material into N ring regions along the radius; (2) based on an occupied area ratio of total vascular bundles and an occupied area ratio of thin wall cells in each ring region, the mechanical performance of a single vascular bundle in the to-be-graded bamboo material and the mechanical performance of a single thin wall cell in the to-be-graded bamboo material, obtaining the mechanical performance of bamboo material micro-units of each ring region through a composite fiber material micromechanics theory; (3) based on the mechanical performance of the bamboo material micro-units of each ring region, obtaining the overall mechanical performance of the bamboo material; and (4) according to the overall mechanical performance of the bamboo material, grading the bamboo material. The bamboo material grading method provided by the invention is high in precision and small in error, can control the variability of a same-grade material and the fluctuation of quality after grading, and provides reliable material units for a bamboo composite material.

Description

technical field [0001] The invention relates to the technical field of bamboo raw materials, in particular to a method and system for grading bamboo materials. Background technique [0002] "Replacing wood with bamboo" is the main goal of bamboo processing and utilization in my country. my country's bamboo industry has become a large-scale industry, including bamboo flooring, bamboo formwork, bamboo decoration, bamboo construction, bamboo engineering materials and other products have been marketed, creating a large number of social and economic benefits. Bamboo is a renewable natural material with excellent performance, and the performance of the outer bamboo is equivalent to that of FRP. Using bamboo to manufacture various types of bamboo-reinforced composite materials has the advantages of good performance, low cost, renewability, good environmental protection, and easy disposal of waste products, and belongs to the sustainable use of biomass composite materials. However...

AI Technical Summary

Problems solved by technology

In the production of bamboo composite materials, due to the large difference in the mechanical properties and physical properties of the bamboo units in the group embryo gluing, the bamboo composite materials produced are prone to cracking and warping during use, which reduces the quality of the bamboo composite materials. reliability and durability

Bamboo is a natural material. Because of its significant variability in performance, there are large fluctuations in the performance of various products, which cannot meet the requirements of engineering composite materials.

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