Experimental Assessment of the Glued Laminated Timber Beams in 4-Point Bending Tests and Photoelastic Coating Technique

Ludomir J. Jankowski; Tomasz Nowak

doi:10.4028/www.scientific.net/SSP.240.155

Paper Titles

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Experimental Study on Mechanical Properties of Polyethylene HDPE in Conditions of Hydraulic Impact Simulation
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Experimental Assessment of the Glued Laminated Timber Beams in 4-Point Bending Tests and Photoelastic Coating Technique
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Experimental Assessment of the Glued Laminated Timber Beams in 4-Point Bending Tests and Photoelastic Coating Technique

Abstract:

The paper presents the results of investigation on seven glued laminated timber (GL24h class) bending beams. Bending strength and modulus of elasticity were determined. The beams were tested for four-point bending by loading them at a constant speed deflection. The strain gauge method and photoelastic coating technique were applied for strain distributions determination in selected cross-sections of the beams. Good agreement of the measurement results was obtained with both techniques. Application of the photoelastic coating technique enabled more detailed analysis of the beams failure mode, including timber defects influence on the strain distributions.

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Periodical:

Solid State Phenomena (Volume 240)

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155-160

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.240.155

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Online since:

August 2015

Authors:

Ludomir J. Jankowski*, Tomasz Nowak

Keywords:

Bending Beam, Glulam, Photoelastic Coating Technique, Strain Distribution

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