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Determinación daDeterminación da
resistencia a flexiónresistencia a flexión
estática da madeiraestática da madeira
Identificación das probetas: especie (P=pinoIdentificación das probetas: especie (P=pino
H=faia), número de probeta (numeraciónH=faia), número de probeta (numeración
correlativa) e tipo de ensaio (F=flexióncorrelativa) e tipo de ensaio (F=flexión
estática). Exemplo:estática). Exemplo:
Comprobación das dimensións daComprobación das dimensións da
probeta.probeta.
Colocación das probetas sobre osColocación das probetas sobre os
apoios separados 240 mm coa súaapoios separados 240 mm coa súa
cara radial orientada para arribacara radial orientada para arriba
Aplicación da carga con velocidadeAplicación da carga con velocidade
constante de 5 mm/min ata a roturaconstante de 5 mm/min ata a rotura
Lectura da carga de rotura en KgfLectura da carga de rotura en Kgf
Comprobación da humidade daComprobación da humidade da
probetaprobeta
Cálculo da resistencia da madeira aCálculo da resistencia da madeira a
flexión estática segundo a fórmula:flexión estática segundo a fórmula:
Resultados obtidos para madeira de PinoResultados obtidos para madeira de Pino
((Pinus pinasterPinus pinaster))
Resultados obtidos para madeira de FaiaResultados obtidos para madeira de Faia
((Fagus sylvaticaFagus sylvatica))
Resultados obtidos para madeira de FaiaResultados obtidos para madeira de Faia
((Fagus sylvaticaFagus sylvatica))

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Determinación da resistencia a flexión estática da madeira

  • 1. Determinación daDeterminación da resistencia a flexiónresistencia a flexión estática da madeiraestática da madeira Identificación das probetas: especie (P=pinoIdentificación das probetas: especie (P=pino H=faia), número de probeta (numeraciónH=faia), número de probeta (numeración correlativa) e tipo de ensaio (F=flexióncorrelativa) e tipo de ensaio (F=flexión estática). Exemplo:estática). Exemplo:
  • 2. Comprobación das dimensións daComprobación das dimensións da probeta.probeta.
  • 3. Colocación das probetas sobre osColocación das probetas sobre os apoios separados 240 mm coa súaapoios separados 240 mm coa súa cara radial orientada para arribacara radial orientada para arriba
  • 4. Aplicación da carga con velocidadeAplicación da carga con velocidade constante de 5 mm/min ata a roturaconstante de 5 mm/min ata a rotura
  • 5. Lectura da carga de rotura en KgfLectura da carga de rotura en Kgf
  • 6. Comprobación da humidade daComprobación da humidade da probetaprobeta
  • 7. Cálculo da resistencia da madeira aCálculo da resistencia da madeira a flexión estática segundo a fórmula:flexión estática segundo a fórmula:
  • 8. Resultados obtidos para madeira de PinoResultados obtidos para madeira de Pino ((Pinus pinasterPinus pinaster))
  • 9. Resultados obtidos para madeira de FaiaResultados obtidos para madeira de Faia ((Fagus sylvaticaFagus sylvatica))
  • 10. Resultados obtidos para madeira de FaiaResultados obtidos para madeira de Faia ((Fagus sylvaticaFagus sylvatica))