Mechanical behaviour of poplar laminated veneer lumber with fiber reinforced polymer under shear and compression stresses

ABSTRACT

This paper presents experimental results of the mechanical behaviour of LVL (Laminated Veneer Lumber) made of poplar reinforced with fiber reinforced polymer (FRP) subjected to shear and compressive stresses. Through mechanical properties such as strength, stiffness, maximum displacement and non-destructive measurements of elastic moduli in compression and shear, the influence of different variables was analysed: 1) Type of FRP (carbon or basalt); 2) Fiber direction; 3) Quality of veneer. The influence of veneer quality under compressive stresses and the difference between carbon and basalt under shear stresses have been verified. In addition, for the unidirectional carbon reinforcement, improvements up to 21% in compressive and shear stiffness and elastic modulus was achieved, respectively.

KEYWORDS:

• LVL
• poplar
• composites
• shear
• compression

Acknowledgments

Acknowledgment is due the LaBoMaP staff since this work is a consequence of the postdoc stay carried out by Dr. Rescalvo at LaBoMaP. Acknowledgement also to the region of Burgundy Franche-Comté, France Douglas, and Thebault Group.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Ministerio de Economia Industria y Competitividad Gobierno de Espana under Grant BIA2017-82650-R.

Notes on contributors

Francisco J. Rescalvo

F.J.R.: majority of writing, majority of experimental work, experimental design, majority of data analysis and interpretation

Robin Duriot

R.D.: writing and design

Guillaume Pot

G.P.: supervision, writing, data analysis and interpretation

Antolino Gallego

A.G.: main supervision, writing, design, data analysis and interpretation