NF B51-002

NF B51-002

February 1942
Standard Current mandatory application standard
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Timbers. Physical and mechanical characteristics of timber.

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Main informations

Collections

National standards and national normative documents

Publication date

February 1942

Number of pages

22 p.

Reference

NF B51-002

ICS Codes

79.040   Wood, sawlogs and sawn timber

Classification index

B51-002

Print number

1 - 01/11/1981
Table of contents
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  • AVANT-PROPOS
    2
  • CARACTÉRISTIQUES PHYSIQUES
  • Généralités
    3
  • Humidité
    4
  • Rétractibilité
    4
  • Coefficient de rétractibilité
    5
  • Rétractibilité linéaire superficielle
    5
  • Masse volumique
    5
  • Dilatabilité
    6
  • Conductibilité électrique
    7
  • CARACTÉRISTIQUES MÉCANIQUES
  • A. - Considérations générales
  • Sollicitations principales
    8
  • Essais mécaniques
    9
  • 1 ° Essais mécaniques de cohésion axiale
    9
  • 2 ° Essais mécaniques de cohésion transversale
    9
  • Comparaison des résultats d'essais
    9
  • Problèmes généraux
    9
  • B. - Qualification des bois
  • Détermination des caractéristiques mécaniques
    10
  • Généralités
    10
  • Caractéristiques de cohésion axiale
    10
  • Traction
    10
  • Compression
    11
  • Flexion statique
    11
  • Flexion dynamique ou choc
    12
  • Caractéristiques de cohésion transversale
    13
  • Dureté
    13
  • Cisaillement
    14
  • Compression de flanc
    14
  • Traction perpendiculaire aux fibres
    14
  • Fissilité
    15
  • C. - Détermination des Résistances d'emploi
  • 1 ° Compression
    16
  • 2 ° Flexion statique
    16
  • 3 ° Essais dynamiques
    16
  • 4 ° Essais spéciaux
    16
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