FE analysis of CLT panel subjected to torsion and verified by DIC

Sebera, Václav; Muszyński, Lech; Tippner, Jan; Noyel, Mélanie; Pisaneschi, Thomas; Sundberg, Benjamin

doi:10.1617/s11527-013-0195-1

Cited by 20 publications

(10 citation statements)

References 7 publications

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“…Furthermore, the effects of small gaps are significant on CLT in-plane shear and torsional stiffness. This was shown experimentally by Brandner et al [7] and Sebera et al [8], who observed a reduction of the stiffness of laterally unglued CLT. In order to predict the reduced inplane shear stiffness due to unglued narrow edges, a simplified closed-form solution was developed by Moosbrugger et al [9] and Bogensperger et al [10].…”

Section: Introductionsupporting

confidence: 63%

Elastic behavior of Cross Laminated Timber and timber panels with regular gaps: Thick-plate modeling and experimental validation

Franzoni

Lebée

Lyon

et al. 2017

Engineering Structures

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In the present paper, the influence of periodic gaps between lamellas of Cross Laminated Timber (CLT) on the panel's elastic behavior is analyzed by means of a periodic homogenization scheme for thick plates having periodic geometry. Both small gaps, due to the fabrication process of not-gluing lateral lamellas, and wider gaps are investigated. The results obtained with the periodic homogenization scheme are compared to existing closed-form solutions and available experimental data. It appears that the plate bending stiffness can be well predicted with both homogenization and simplified methods, while only the homogenization approach is in agreement with the experimental in-plane and out-of-plane shear behavior. The influence of several properties of CLT lay-up on the mechanical response is pointed out as well.

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Section: Introductionsupporting

confidence: 63%

Elastic behavior of Cross Laminated Timber and timber panels with regular gaps: Thick-plate modeling and experimental validation

Franzoni

Lebée

Lyon

et al. 2017

Engineering Structures

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“…That is why digital image correlation (DIC) measurement system has already been applied even to the surface of stressed timber elements at different length scales for a long time, e.g., for the analysis of the strain distribution along wood adhesive bonds , in case of small test samples to capture the strain field induced by local kink banding , in order to improve the derivation of material stiffness parameters , for the development of an appropriate test configuration for transverse shear of wood or CLT plates , in case of dowel joints connecting timber members to steel plates and for experimental visualisation of the strain distribution in oriented strand and gypsum wall board of wood‐frame shear walls .…”

Section: Introductionmentioning

confidence: 99%

Influence of Wooden Board Strength Class on the Performance of Cross‐laminated Timber Plates Investigated by Means of Full‐field Deformation Measurements

Hochreiner

Füssl

Serrano

et al. 2013

Strain

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Although cross-laminated timber (CLT) plates are increasingly used in high-performance building structures, a tailored composition of them or, at least, a performance-based classification scheme is not available. Especially, the influence of the quality of the 'raw' material (wooden boards) on the load carrying capacity of CLT elements is hardly investigated yet. For this reason, within this work, bending tests on 24 CLT plates consisting of wooden boards from three different strength classes have been carried out. The global mechanical response as well as the formation of failure mechanisms were investigated, including a full-field deformation measurement system, which allowed for a qualitatively as well as quantitatively identification of board failure modes. Interestingly, no influence of the board strength class on the elastic limit load of the CLT plates was observed, but the situation was different for the load displacement history beyond the elastic regime, where basically, two different global failure mechanisms could be distinguished. The obtained knowledge about the 'post-elastic' behaviour of CLT plates may serve as a basis for the optimisation of CLT products and the development or improvement of design concepts, respectively. Moreover, the obtained large 'post-elastic' capacity reserve of CLT consisting of high quality boards could lead to a better utilisation of the raw material.

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“…of wooden boards placed side by side, which can be glued or not on their lateral faces, depending on the fabrication process. The resulting discontinuities in the non-gluing case have a non-negligible influence on the mechanical response, as the studies in Sebera et al (2013) showed. At the structural level, additional heterogeneities can be added in order to meet acoustic and structural needs.…”

Section: Introductionmentioning

confidence: 93%

Influence of orientation and number of layers on the elastic response and failure modes on CLT floors: modeling and parameter studies

et al. 2016

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International audienceIn the present paper, the bending behavior of Cross Laminated Timber panels is investigated by means of the linear elastic exact solution from Pagano (1970; 1969). The resulting stresses are the input for a wood failure criterion , which can point out the first-crack load and the respective dominant failure mode. Heterogeneous layers are mod-eled as equivalent and homogeneous layers. This simplified and deterministic modeling gives results in good agreement with a reference experimental test. A comparison is made with respect to the panel's global stiffness and failure stages within the apparent elastic stage. Finally, parameter studies are carried out, in order to quantify CLT limitations and advantages. The effect of varying properties like the panel's slenderness, orientation of transverse layers and number of layers for a fixed total thickness are investigated

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FE analysis of CLT panel subjected to torsion and verified by DIC

Cited by 20 publications

References 7 publications

Elastic behavior of Cross Laminated Timber and timber panels with regular gaps: Thick-plate modeling and experimental validation

Elastic behavior of Cross Laminated Timber and timber panels with regular gaps: Thick-plate modeling and experimental validation

Influence of Wooden Board Strength Class on the Performance of Cross‐laminated Timber Plates Investigated by Means of Full‐field Deformation Measurements

Influence of orientation and number of layers on the elastic response and failure modes on CLT floors: modeling and parameter studies

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