Fiberglass-reinforced glulam beams: mechanical properties and theoretical model



Document title: Fiberglass-reinforced glulam beams: mechanical properties and theoretical model
Journal: Materials research
Database: PERIÓDICA
System number: 000312940
ISSN: 1516-1439
Authors: 1
2
Institutions: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Dracena, Sao Paulo. Brasil
2Universidade de Sao Paulo, Escola de Engenharia de Sao Carlos, Sao Carlos, Sao Paulo. Brasil
Year:
Season: Jul-Sep
Volumen: 9
Number: 3
Pages: 263-269
Country: Brasil
Language: Inglés
Document type: Nota breve o noticia
Approach: Teórico, analítico
English abstract The glued-laminated lumber (glulam) technique is an efficient process for making rational use of wood. Fiber-Reinforced Polymers (FRPs) associated with glulam beams provide significant gains in terms of strength and stiffness, and also alter the mode of rupture of these structural elements. In this context, this paper presents a theoretical model for designing reinforced glulam beams. The model allows for the calculation of the bending moment, the hypothetical distribution of linear strains along the height of the beam, and considers the wood has a linear elastic fragile behavior in tension parallel to the fibers and bilinear in compression parallel to the fibers, initially elastic and subsequently inelastic, with a negative decline in the stress-strain diagram. The stiffness was calculated by the transformed section method. Twelve non-reinforced and fiberglass reinforced glulam beams were evaluated experimentally to validate the proposed theoretical model. The results obtained indicate good congruence between the experimental and theoretical values
Disciplines: Ingeniería
Keyword: Ingeniería de materiales,
Ingeniería mecánica,
Madera laminada,
Fibra de vidrio,
Propiedades mecánicas,
Resistencia
Keyword: Engineering,
Materials engineering,
Mechanical engineering,
Laminated wood,
Fiber glass,
Mechanical properties,
Resistance
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