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<p>In order to study the compressive behavior of wood winding circular tubes at different winding angles (from 0 degrees to 90 degrees, with intervals of every 15 degrees), 28 specimens were designed for experimental research. The failure modes of the specimens were found to be dependent on the winding angle: specimens labeled WD0 and WD15 exhibited brittle fracture, specimens labeled WD45 to WD90 showed progressive crushing, and the remaining specimens experienced mixed failure. The results indicated that the compressive strength gradually decreased with the increase of winding angle. Additionally, specific energy absorption (SEA), mean crushing force (MCF) and crush force efficiency (CFE) increased with the winding angle, while peak crushing force (PCF) initially decreased and then increased. Further, an empirical equation based on a sine and cubic function was proposed to predict the compressive strength of wood winding circular tubes at different winding angles. Theoretical formulas were also introduced to predict the mean crushing force.</p>

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Compressive behavior of wood winding circular tubes at different winding angles

  • 期刊论文

  • 发表日期：

    2025年3月8日

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  • Wenjing Zhou,
  • Haitao Li,
  • Tianyu Gao,
  • Zixian Feng,
  • Xinqi Shen,
  • Ottavia Corbi

摘要

In order to study the compressive behavior of wood winding circular tubes at different winding angles (from 0 degrees to 90 degrees, with intervals of every 15 degrees), 28 specimens were designed for experimental research. The failure modes of the specimens were found to be dependent on the winding angle: specimens labeled WD0 and WD15 exhibited brittle fracture, specimens labeled WD45 to WD90 showed progressive crushing, and the remaining specimens experienced mixed failure. The results indicated that the compressive strength gradually decreased with the increase of winding angle. Additionally, specific energy absorption (SEA), mean crushing force (MCF) and crush force efficiency (CFE) increased with the winding angle, while peak crushing force (PCF) initially decreased and then increased. Further, an empirical equation based on a sine and cubic function was proposed to predict the compressive strength of wood winding circular tubes at different winding angles. Theoretical formulas were also introduced to predict the mean crushing force.