Preliminary assessment of the bending strength of mid-nineteenth century oak timber

This paper deals with results of preliminary analysis to determine the bending strength of approximately 150 year old oak timber obtained from structural elements used in construction. The test procedures were those specified in the PN-EN 408 standard. The experiments involved subjecting specimens t...

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Bibliographic Details
Published inAdvances in materials science Vol. 17; no. 1; pp. 58 - 69
Main Authors Bakalarz, M., Kossakowski, P. G.
Format Journal Article
LanguageEnglish
Published Gdansk De Gruyter Open 01.03.2017
De Gruyter Poland
Subjects
element failure
Flexural strength
four-point bending
laboratory testing
mechanical properties
old oak timber
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Summary:This paper deals with results of preliminary analysis to determine the bending strength of approximately 150 year old oak timber obtained from structural elements used in construction. The test procedures were those specified in the PN-EN 408 standard. The experiments involved subjecting specimens to four-point static loading using three different loading rates: 5, 7 and 10 mm/min. The specimens were sampled from full-size timber beams. The experimental data revealed that after such a long period of use the structural oak timber elements had retained high strength. The failure mode and the behaviour of the beams during tests were dependent on the location of wood defects as well as the rate of deflection gain in time.
ISSN:2083-4799
1730-2439
2083-4799
DOI:10.1515/adms-2017-0005