Abstract
Research & Development in Material Science Shear Field Size Effect on Determining the Shear Modulus of Glulam beam Niaz Gharavi*, Murray MacCallum, Andrew MacIver, Ahmed Mohamed and Hexin Zhang School of Engineering and Built Environment, Edinburgh Napier University, UK *Corresponding author: Niaz Gharavi, School of Engineering and Built Environment, Edinburgh Napier University, 10 Colinton Road, EH10 5DT, UK Submission: February 13, 2018; Published: February 23, 2018 DOI: 10.31031/RDMS.2018.03.000575 ISSN: 2576-8840Volume3 Issue5
Highlights
Brandner et al [3,4] recommendations for determining the shear modulus of structural timber and glue laminated timber
According to BS EN 408 [1], the shear modulus of a structural-size timber beam can be determined using the torsion test and shear field test method. This method is based on the measurement of the shear distortion of the beam at the zone with the constant transverse loading in the standardized four-point bending test as indicated in BS EN 408 [1]
The null hypothesis for the impact of square size was set to; “The size of the square will have no impact on the variation of the shear modulus of the tested beam”
Summary
Brandner et al [3,4] recommendations for determining the shear modulus of structural timber and glue laminated timber. It has been instructed to measure the shear distortion of the beam at the middle of the constant shear span by measuring the changes in diagonals of the marked square (Figure 1) when subjected to flexural loading. According to BS EN 408 [1], the shear modulus of a structural-size timber beam can be determined using the torsion test and shear field test method. This method is based on the measurement of the shear distortion of the beam at the zone with the constant transverse loading in the standardized four-point bending test as indicated in BS EN 408 [1]. The shear field test method was included in BS EN 408 [1] following
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