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Leonel Mimendi_Digital workflow for the accurate computation of the geometric properties of bamboo culms

International Bamboo and Rattan Organisation
International Bamboo and Rattan Organisation

This document presents a digital workflow for accurately determining the geometric properties of bamboo culms using 3D scanning and processing algorithms. The workflow involves scanning bamboo poles, computing 3D models from the scans, and quantifying key geometric measurements like diameter, thickness, and out-of-straightness in a non-destructive manner. This provides more accurate and efficient measurement than manual methods, allowing bamboo properties to be standardized and its potential for structural applications to be realized through integration into design and modeling platforms.

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Digital workflow for the accurate computation of the geometric properties of bamboo culms for structural applications Leonel Mimendi PhD Candidate UCL leonel.mimendi.15@ucl.ac.uk
Promising sustainable material Large natural reserves 1% Global forest area (2005) Industrialised materials High quality assurance Quantifiable properties Produced as International Standards
This workflow relies on 3D scanner and a processing algorithm to produce a lightweight digital model of individual poles Implemented in structural design and into Building Information Modelling (BIM) platforms Lack of reliability of the material Quality Assurance Geometric Mechanical Physical
Harvesting Plantation area Treatment Prevent fungi Drying Scanning ID code Referen ce point Scan process Storage Compute r Process Simplify 3D model Data base Dissemi nation Workflow
Three different bamboo species Key geometric measurements (ISO 22157-1-2004) Significantly improve the accuracy and efficiency of manual methods due irregularities Non-destructive, reverse-engineering approach Quantify the geometric properties Diameter (mm) Thickness (mm) Out-of-straightness (mm) Length (%) Node length (%) Max = 2.22 1.65 5.22 3.21 3.0 Avg = 0.67 0.44 3.10 1.14 2.0 StDev = 0.57 0.34 1.89 1.20 1.0 Output - Results Model accuracy
Digital Design
Scan automation
Fabrication
Potential of digital technologies to adopt a natural material Allow re-assessment of design workflows Provide an opportunity for bamboo to compete with industrialized materials. Conclusion Acknowledgements EPSRC GCRF British Council GREEZU Nanjing Forestry University UNAM (National Autonomus University of Mexico) Coventry University Conacyt
Leonel Mimendi_Digital workflow for the accurate computation of the geometric properties of bamboo culms

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Leonel Mimendi_Digital workflow for the accurate computation of the geometric properties of bamboo culms

  • 1. Digital workflow for the accurate computation of the geometric properties of bamboo culms for structural applications Leonel Mimendi PhD Candidate UCL leonel.mimendi.15@ucl.ac.uk
  • 2. Promising sustainable material Large natural reserves 1% Global forest area (2005) Industrialised materials High quality assurance Quantifiable properties Produced as International Standards
  • 3. This workflow relies on 3D scanner and a processing algorithm to produce a lightweight digital model of individual poles Implemented in structural design and into Building Information Modelling (BIM) platforms Lack of reliability of the material Quality Assurance Geometric Mechanical Physical
  • 4. Harvesting Plantation area Treatment Prevent fungi Drying Scanning ID code Referen ce point Scan process Storage Compute r Process Simplify 3D model Data base Dissemi nation Workflow
  • 5. Three different bamboo species Key geometric measurements (ISO 22157-1-2004) Significantly improve the accuracy and efficiency of manual methods due irregularities Non-destructive, reverse-engineering approach Quantify the geometric properties Diameter (mm) Thickness (mm) Out-of-straightness (mm) Length (%) Node length (%) Max = 2.22 1.65 5.22 3.21 3.0 Avg = 0.67 0.44 3.10 1.14 2.0 StDev = 0.57 0.34 1.89 1.20 1.0 Output - Results Model accuracy
  • 9. Potential of digital technologies to adopt a natural material Allow re-assessment of design workflows Provide an opportunity for bamboo to compete with industrialized materials. Conclusion Acknowledgements EPSRC GCRF British Council GREEZU Nanjing Forestry University UNAM (National Autonomus University of Mexico) Coventry University Conacyt