Non-linear analytical model of composites based on basalt textile reinforced mortar under uniaxial tension
| Autor: | LEIRE GARMENDIA ARRIETA, JOSE TOMAS SAN JOSE LOMBERA, PELLO LARRINAGA ALONSO, Carlos Chastre, UNIC FCT/UNL |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Serviceability (structure) business.industry Mechanical Engineering Uniaxial tension Stiffness Structural engineering Industrial and Manufacturing Engineering Cracking Nonlinear system Mechanics of Materials Precast concrete Ceramics and Composites medicine Limit state design Composite material medicine.symptom Mortar business |
| Zdroj: | Composites Part B: Engineering. 55:518-527 |
| ISSN: | 1359-8368 |
| DOI: | 10.1016/j.compositesb.2013.06.043 |
| Popis: | The recent development of inorganic based composites as low-cost materials in reinforced concrete structural strengthening and precast thin-walled components, requires the creation of models that predict the mechanical behaviour of these materials. Textile Reinforced Mortar (TRM) shows complex stress–strain behaviour in tension derived from the heterogeneity of its constituent materials. This complexity is mainly caused by the formation of several cracks in the inorganic matrix. The multiple cracking leads to a decrease in structural stiffness. Due to the severe conditions of the serviceability limit state in structural elements, the prediction of the stress–strain curve is essential for design and calculation purposes. After checking other models, an empirical nonlinear approach, which is based on the crack control expression included in the Eurocode 2, is proposed in this paper. Following this scope, this paper presents an experimental campaign focused on 31 TRM specimens reinforced with four different reinforcing ratios. The results are analysed and satisfactorily contrasted with the presented non-linear approach. |
| Databáze: | OpenAIRE |
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