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Research Journal of the University of Ruhuna, Sri Lanka- Rohana 11, 2019
Experiment Procedure is shown by below flow chart 1.
Experiment Proceudre
Test Series 1 Test Series 2
Test on standard finger jointed & clear timber Test on standard finger jointed & clear
specimen as per BS373:1957 by Universal timber By using Compression Testing
Testing Machine Machine
1. Three point bending test Compression testing on 1000 mm×
2. Compression parallel to grain test 100 mm×100 mm column of Pine &
Grandis timber
3. Compression perpendicular to grain test
Chart 1 : Experiment Procedure
Specimens used in the Three Point Bending Test
Finger jointed and clear timber specimens used in the three-point bending test were
20 mm × 20 mm in cross section and 300 mm in length according to test method
describes in BS 373:1957. (Refer Figure 3 and dimensions are not in scale).
20 mm
300 mm
20 mm
(a) Sample size used in the test
(b) Finger jointed timber specimen
Figure 3: Specimen used in the three-point bending test
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