Compression strength perpendicular to grain of structural timber and glulam

  • Hoffmeyer, Preben (Project Manager)
  • Damkilde, Lars (Project Participant)

    Project Details

    Description

    Project leaders are: Lars Damkilde and Preben Hoffmeyer
    The characteristic strength values for compression perpendicular to grain as they appear in EN338 (structural timber) and EN 1194 (glulam) are currently up for discussion. The project provides experimental results based on EN 1193 that may assist in the correct assignment of such strength values. The dominant failure mode of glulam specimens is shown to be fundamentally different from that of structural timber specimens. Glulam specimens often show tension perpendicular to grain failure before the compression strength value is reached. Such failure mode is not seen for structural timber. Nonetheless, the test results show that the levels of characteristic compression strength perpendicular to grain are of the same order for structural timber and glulam. The values are slightly lower than those appearing in EN 1194 and less than half of those appearing in EN 338. The project includes a numerical analysis to prove the significant role of tension perpendicular to grain stresses in the failure mode of the glulam specimens
    StatusFinished
    Effective start/end date01/08/199731/12/2000