Análise da aderência entre madeira MLC e compósitos de CFRP = Bond Analysis between GLULAM and CFRP Composites

• Type: Article in International Conference Proceedings Book
• Date: 2009

Authors

Luís Filipe Pereira Juvantes (Author) FEUP; Rui Manuel Teixeira Barbosa (Author) FEUP

Conference proceedings International

Title: 15th International Conference on Composite Structures (ICCS15)

Pages: 1-17

15th International Conference on Composite Structures (ICCS15)

FEUP, Porto, Portugal, June 15-17, 2009

Indexing

ISI Proceedings

ISI Web of Science

Scientific classification

FOS: Engineering and technology > Mechanical engineering

CORDIS: Technological sciences > Engineering > Materials engineering

Other information

Abstract (EN): The wood has been used over time owing to their mechanical characteristics, ecological nature and sustainable production. However, this material presents some structural limitations that can be overcome by using other materials to strengthen, particularly those designated fibre reinforced composite materials (FRP). Due to being current the use of the bonding technique to implement connection between materials, it was applied the bonding of CFRP (carbon fibre) composites to wood elements, which required to know the behaviour of the glued wood-CFRP joint. The bond strengthening technique can be done on the external surface (EBR) or in a longitudinal cut near to the surface (NSM). This document is based on experimental analysis to evaluate the importance of parameters such as the value of the bonding tension by Pull-Off, the value of the maximum bond strength between wood and reinforcement, the value of the maximum effective bonding length, the maximum efficiency of the FRP reinforcement and its dependence on the failure modes, and finally, to evaluate the maximum shear stress developed at the interface of connection between the materials. Although the experimental work was already done by other authors linked to the Composites Laboratory of DEC, this document summarizes, analyze and interpret the results of campaigns of testing for adherence by Pull-Off and Flexural Models. In order to draw up lessons on the definition of analytical models to predict the behaviour of wood-CFRP joints, it was also made on this dissertation, a study on the feasibility of setting a model recommended in FIB Bulletin No. 14 indicated for concrete (Model A) and another proposed by Musner and Piazza (Model B) for predictions on those joints.

Language: Portuguese

Type (Professor's evaluation): Scientific