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On the prediction of long-term creep-failure of GRP pipes in aqueous environment

R. M. Guedes; Alcides Sá; Hugo Faria

The aim of this work was to study the long-term failure of GAP (Glass fiber-reinforced Polymer) pipes under the influence of moisture absorption. These pipes are used in water transportation, which has an important effect on the mechanical properties of the polymeric matrix. The GRP pipes are usually tested under ring deflection or internal pressure conditions. This study presents and analyzes experimental cree...

Data: 2010 | Origem: Repositório Aberto da Universidade do Porto

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Numerical analysis of singly curved shallow composite panels under three-point ...

R. M. Guedes; Alcides Sá

The experimental methodology to test curved panels under three-point bend (3PB) load is assessed. The problem arises when mechanical and strength characterization of pipe material systems is necessary. Test specimens cut out from pipe samples oriented in the tangential direction are used to measure hoop modulus and strength. In this procedure singly curved beams with the same radius of the pipe are obtained. Th...

Data: 2008 | Origem: Repositório Aberto da Universidade do Porto

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