DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)

In timber design, the shear modulus of beams is crucial for ensuring torsional stability and minimizing vibrational issues. Traditionally, the ratio of modulus of elasticity (E) to shear modulus (G) is assumed to be 16:1. However, bending tests often combine flexural and shear stresses, making it di...

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Published in:Jurnal Teknologi
Main Author: Puaad M.B.F.M.; Ahmad Z.; Bhkari N.M.; Ibrahim M.J.M.; Noh N.; Mohammad S.N.; Ismail H.B.
Format: Article
Language:English
Published: Penerbit UTM Press 2024
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85207823953&doi=10.11113%2fjurnalteknologi.v86.20819&partnerID=40&md5=333e90147ea8ca1041c1739ff214a4f2
id 2-s2.0-85207823953
spelling 2-s2.0-85207823953
Puaad M.B.F.M.; Ahmad Z.; Bhkari N.M.; Ibrahim M.J.M.; Noh N.; Mohammad S.N.; Ismail H.B.
DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)
2024
Jurnal Teknologi
86
6
10.11113/jurnalteknologi.v86.20819
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85207823953&doi=10.11113%2fjurnalteknologi.v86.20819&partnerID=40&md5=333e90147ea8ca1041c1739ff214a4f2
In timber design, the shear modulus of beams is crucial for ensuring torsional stability and minimizing vibrational issues. Traditionally, the ratio of modulus of elasticity (E) to shear modulus (G) is assumed to be 16:1. However, bending tests often combine flexural and shear stresses, making it difficult to assess pure shear properties. The British Standard BS EN 408:2012 now recommends the torsion test as the preferred method for determining the shear modulus of structural-size timber and timber composites. This method has received limited attention in Malaysia. This study investigates the torsional shear modulus of Malaysian tropical timber species across different strength groups (SG), including Balau (SG1), Kempas (SG2), Kelat (SG3), Kapur (SG4), Resak (SG4), Keruing (SG5), Mengkulang (SG5), Light Red Meranti (SG6), and Geronggang (SG7). Torsion tests were conducted in line with BS EN 408, and the results were compared with modulus of elasticity values from MS554: Part 2. The findings showed that the E to G ratio for these species ranged from 17:1 to 29:1, with an average of 21:1—exceeding the conventional 16:1 ratio. This indicates that torsional shear modulus must be experimentally tested rather than inferred from the traditional ratio. © 2024 Penerbit UTM Press. All rights reserved.
Penerbit UTM Press
1279696
English
Article
All Open Access; Gold Open Access
author Puaad M.B.F.M.; Ahmad Z.; Bhkari N.M.; Ibrahim M.J.M.; Noh N.; Mohammad S.N.; Ismail H.B.
spellingShingle Puaad M.B.F.M.; Ahmad Z.; Bhkari N.M.; Ibrahim M.J.M.; Noh N.; Mohammad S.N.; Ismail H.B.
DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)
author_facet Puaad M.B.F.M.; Ahmad Z.; Bhkari N.M.; Ibrahim M.J.M.; Noh N.; Mohammad S.N.; Ismail H.B.
author_sort Puaad M.B.F.M.; Ahmad Z.; Bhkari N.M.; Ibrahim M.J.M.; Noh N.; Mohammad S.N.; Ismail H.B.
title DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)
title_short DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)
title_full DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)
title_fullStr DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)
title_full_unstemmed DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)
title_sort DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)
publishDate 2024
container_title Jurnal Teknologi
container_volume 86
container_issue 6
doi_str_mv 10.11113/jurnalteknologi.v86.20819
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85207823953&doi=10.11113%2fjurnalteknologi.v86.20819&partnerID=40&md5=333e90147ea8ca1041c1739ff214a4f2
description In timber design, the shear modulus of beams is crucial for ensuring torsional stability and minimizing vibrational issues. Traditionally, the ratio of modulus of elasticity (E) to shear modulus (G) is assumed to be 16:1. However, bending tests often combine flexural and shear stresses, making it difficult to assess pure shear properties. The British Standard BS EN 408:2012 now recommends the torsion test as the preferred method for determining the shear modulus of structural-size timber and timber composites. This method has received limited attention in Malaysia. This study investigates the torsional shear modulus of Malaysian tropical timber species across different strength groups (SG), including Balau (SG1), Kempas (SG2), Kelat (SG3), Kapur (SG4), Resak (SG4), Keruing (SG5), Mengkulang (SG5), Light Red Meranti (SG6), and Geronggang (SG7). Torsion tests were conducted in line with BS EN 408, and the results were compared with modulus of elasticity values from MS554: Part 2. The findings showed that the E to G ratio for these species ranged from 17:1 to 29:1, with an average of 21:1—exceeding the conventional 16:1 ratio. This indicates that torsional shear modulus must be experimentally tested rather than inferred from the traditional ratio. © 2024 Penerbit UTM Press. All rights reserved.
publisher Penerbit UTM Press
issn 1279696
language English
format Article
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
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