4 documents found, page 1 of 1
Numerical and experimental characterization of Steel - Wood doweled joints unde...
Marcelo de Moura; Nuno Dourado; Abílio M. P. de Jesus; José XavierThe objective of this work is to investigate the quasi-static mechanical behaviour of doweltype timber joints. Therefore, four dowel arrangements were experimentally tested to assure the stability of a steel-wood joint. The results revealed different behaviour regarding the distance between dowels and distance to the free edge of the wood member. An approach based on cohesive zone modelling was adopted to repli...
Understanding and predicting stiffness in advanced fibre-reinforced polymer (FR...
Rui Miranda Guedes; José XavierThis chapter describes the elastic qualities of advanced fibre-reinforced composites, in terms of characterization, measurement and prediction from the basic constituents, i.e. the fibre and matrix. The elastic analysis comprises applying micromechanics approaches to predict the lamina elastic properties from the basic constituents, and using classical lamination theory to predict the elastic properties of comp...
Characterisation of S185 steel under monotonic loading by a feature tracking me...
João Pereira; Abílio de Jesus; José Xavier; João Manuel R. S.TavaresIn this work, the mechanical behaviour of S185 steel under monotonic loading was characterised by using an image feature-based tracking method. Tensile tests on three types of cylindrical specimens were carried out, in particularly using smooth and notched specimens. Target features were painted on the specimen surfaces and tracked in images sequences in order to estimate the experimental load-displacement curv...
A comparison between the iosipescu and off-axis shear test methods for the char...
José Xavier; N. M. Garrido,; Marcelo Costa Oliveira; J. L. Morais; Pedro P. Camanho; Fabrice PierronIn this work, the applicability of the Iosipescu and off-axis test methods for the shear characterization of clear wood was investigated. Wood of maritime pine (Pinus Pinaster Ait.) was used. Iosipescu shear tests were carried out for oriented specimens in the three natural symmetry planes of wood (LR, LT and RT planes), whereas off-axis tests were performed only in the LR and LT planes. Finite element analyses...