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

L. Franzoni; A. Lebée; F. Lyon; G. Forêt

doi:10.1016/j.engstruct.2017.03.010

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

L. Franzoni, A. Lebée, F. Lyon, G. Forêt

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	402-416
Number of pages	15
Journal	Engineering Structures
Volume	141
DOIs	https://doi.org/10.1016/j.engstruct.2017.03.010
Publication status	Published - 15 Jun 2017
Externally published	Yes

Keywords

Cross Laminated Timber
Engineered timber products
Homogenization
Thick plate theory
Timber panels with gaps

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10.1016/j.engstruct.2017.03.010

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

abstract = "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.",

keywords = "Cross Laminated Timber, Engineered timber products, Homogenization, Thick plate theory, Timber panels with gaps",

author = "L. Franzoni and A. Leb{\'e}e and F. Lyon and G. For{\^e}t",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = jun,

day = "15",

doi = "10.1016/j.engstruct.2017.03.010",

language = "English",

volume = "141",

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journal = "Engineering Structures",

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}

TY - JOUR

T1 - Elastic behavior of Cross Laminated Timber and timber panels with regular gaps

T2 - Thick-plate modeling and experimental validation

AU - Franzoni, L.

AU - Lebée, A.

AU - Lyon, F.

AU - Forêt, G.

PY - 2017/6/15

Y1 - 2017/6/15

N2 - 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.

AB - 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.

KW - Cross Laminated Timber

KW - Engineered timber products

KW - Homogenization

KW - Thick plate theory

KW - Timber panels with gaps

U2 - 10.1016/j.engstruct.2017.03.010

DO - 10.1016/j.engstruct.2017.03.010

M3 - Article

AN - SCOPUS:85016290266

SN - 0141-0296

VL - 141

SP - 402

EP - 416

JO - Engineering Structures

JF - Engineering Structures

ER -

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

Abstract

Keywords

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