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Estimation of the Internal Shear Strength Distribution of the Element for Laminated Veneer Lumber by Nonlinear Least-Squares Method

https://research.thinkwood.com/en/permalink/catalogue1461
Year of Publication
2018
Topic
Mechanical Properties
Material
LVL (Laminated Veneer Lumber)
Author
Koseki, Makoto
Nakamura, Noboru
Naoi, Shinichiro
Publisher
Springer Japan
Year of Publication
2018
Format
Journal Article
Material
LVL (Laminated Veneer Lumber)
Topic
Mechanical Properties
Keywords
Nonlinear Least-Squares Method
Shear Strength
Modulus of Elasticity
Modulus of Rupture
Tensile Strength
Compression Strength
Research Status
Complete
Series
Journal of Wood Science
Summary
Until now we developed an estimation method for strength distributions of laminated veneer lumber (LVL) element by nonlinear least-squares method (NLM). Estimated strengths by this method were modulus of elasticity (MOE) and modulus of rupture (MOR) in the horizontal use direction and the vertical use direction, tensile strength and compression strength. But to use LVL for structural members, shear strength was also needed. Therefore, we tried to estimate the shear strength distribution of LVL element by NLM same as MOE and MOR in the horizontal use direction and the vertical use direction, the tensile strength of LVL and the compression strength of LVL in the previous reports. We conducted shear strength test for LVL and estimated element shear strength distribution by LVL strength data in the horizontal and vertical use direction. Next, we simulated LVL shear strength distribution using element shear strength distribution and compared with experimental ones in each use direction. They were overlapped in both use direction. Therefore, we could validate NLM for estimating element shear strength distribution.
Online Access
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Resource Link
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