Next Article in Journal
Multiscale Assessment of Nanoscale Manufacturing Process on the Freeform Copper Surface
Previous Article in Journal
Effect of 3D Printed Spatial Reinforcement on Flexural Characteristics of Conventional Mortar
Article

Experimental and Numerical Analysis of Mixed I-214 Poplar/Pinus Sylvestris Laminated Timber Subjected to Bending Loadings

1
Building Engineering School, University of Granada, 18071 Granada, Spain
2
Department of Structural Mechanics, University of Granada, 18071 Granada, Spain
*
Author to whom correspondence should be addressed.
Materials 2020, 13(14), 3134; https://doi.org/10.3390/ma13143134
Received: 31 May 2020 / Revised: 10 July 2020 / Accepted: 13 July 2020 / Published: 14 July 2020
The structural use of timber coming from fast growing and low-grade species such as poplar is one of the current challenges in the wood value chains, through the development of engineering products. In this work, a qualitative comparison of the behavior of mixed glued laminated timber made of pine in their outer layers and of poplar in their inner layers is shown and discussed. Single-species poplar and pine laminated timber have been used as control layouts. The investigation includes destructive four-point bending tests and three non-destructive methodologies: finite elements numerical model; semi-analytical model based on the Parallel Axes theorem and acoustic resonance testing. An excellent agreement between experimental and numerical results is obtained. Although few number of samples have been tested, the results indicate that the use of poplar as a low-grade species in the inner layers of the laminated timber can be a promising technology to decrease the weight of the timber maintaining the good mechanical properties of pine. Likewise, the need for the use of the shear modulus in both experimental measurements and numerical analysis is suggested, as well as the need to reformulate the vibration methodology for non-destructive grading in the case of mixed timber. View Full-Text
Keywords: poplar; pine; timber; glulam; bending; numerical modelling; non-destructive testing poplar; pine; timber; glulam; bending; numerical modelling; non-destructive testing
Show Figures

Figure 1

MDPI and ACS Style

Rescalvo, F.J.; Timbolmas, C.; Bravo, R.; Gallego, A. Experimental and Numerical Analysis of Mixed I-214 Poplar/Pinus Sylvestris Laminated Timber Subjected to Bending Loadings. Materials 2020, 13, 3134. https://doi.org/10.3390/ma13143134

AMA Style

Rescalvo FJ, Timbolmas C, Bravo R, Gallego A. Experimental and Numerical Analysis of Mixed I-214 Poplar/Pinus Sylvestris Laminated Timber Subjected to Bending Loadings. Materials. 2020; 13(14):3134. https://doi.org/10.3390/ma13143134

Chicago/Turabian Style

Rescalvo, Francisco J., Cristian Timbolmas, Rafael Bravo, and Antolino Gallego. 2020. "Experimental and Numerical Analysis of Mixed I-214 Poplar/Pinus Sylvestris Laminated Timber Subjected to Bending Loadings" Materials 13, no. 14: 3134. https://doi.org/10.3390/ma13143134

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop