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In-plane Shear Modulus of Cross-laminated Timber by Diagonal Compression Test
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-4686-4010
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-0900-5110
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-0145-080x
Faculty of Engineering, Department of Manufacturing and Civil Engineering, Norwegian University of Science and Technology, Gjøvik, Norway.
2019 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 14, no 3, p. 5559-5572Article in journal (Refereed) Published
Abstract [en]

Cross-laminated timber (CLT) is an engineered wood material that is used in the construction industry, e.g., for floors, walls, and beams. In cases where CLT-elements are used as shear walls, the in-plane-stiffness is an important property. For non-edge glued CLT, in-plane shear stiffness is lower than for edge-glued CLT. To evaluate the non-edge glued CLT panel’s in-plane shear modulus, the diagonal compression test and finite element (FE) simulation was used. FE-models with both isotropic and orthotropic material models were used to calculate the shear stiffness. The FE models using pure shear loads were used as a reference to determine the correct value of the shear modulus. To verify the FE simulations, diagonal compression tests were conducted on 30 CLT samples. A calibration formula was derived using the least square method for calculation of shear modulus. The formula gave accurate results. The results showed that FE simulations can reproduce the same shear stiffness as tests of non-edge glued 3-layer and 5-layer CLT panels.

Place, publisher, year, edition, pages
NC State University , 2019. Vol. 14, no 3, p. 5559-5572
Keywords [en]
Cross-laminated timber, Finite element analysis, In-plane shear stiffness, Diagonal compression test, Shear modulus
National Category
Other Engineering and Technologies not elsewhere specified Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-74597DOI: 10.15376/biores.14.3.5559-5572ISI: 000473204700043Scopus ID: 2-s2.0-85066306339OAI: oai:DiVA.org:ltu-74597DiVA, id: diva2:1325655
Note

Validerad;2019;Nivå 2;2019-06-24 (svasva)

Available from: 2019-06-17 Created: 2019-06-17 Last updated: 2019-08-16Bibliographically approved

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Publisher's full textScopushttps://bioresources.cnr.ncsu.edu/resources/in-plane-shear-modulus-of-cross-laminated-timber-by-diagonal-compression-test/

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Berg, SvenTuresson, JonasEkevad, Mats

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