Strain energy release rate in shaft-loaded blister tests for composite repairs on steel
| Autor: | G Kotsikos, J.M. Linden, A.G. Gibson |
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| Rok vydání: | 2016 |
| Předmět: |
Strain energy release rate
Materials science integumentary system business.industry Composite number Composite repairs 02 engineering and technology Structural engineering Adhesion Common method 021001 nanoscience & nanotechnology Bead test 020303 mechanical engineering & transports Fracture toughness 0203 mechanical engineering Mechanics of Materials Ceramics and Composites Head (vessel) Composite material 0210 nano-technology business |
| Zdroj: | Composites Part A: Applied Science and Manufacturing. 81:129-138 |
| ISSN: | 1359-835X |
| DOI: | 10.1016/j.compositesa.2015.10.026 |
| Popis: | The design of composite repairs of corroded oil and gas pipelines must take into account the strength of the interface adhesion between composite and metal. A shaft-loaded blister test is a common method to measure interface fracture toughness and energy release rate. The study aimed on evaluating shaft-loaded blister tests as replacements for more complex pressure blister tests. Specimens investigated were thick fibre-reinforced plates bonded on metal disks as substrates containing a circular through-hole defect. This paper presents the influence of different punch head geometries on the resulting energy release rates and compares the results with blister tests using fluid pressure. Test and simulation results are presented and analytical solutions were derived and evaluated to establish best fitting formulations. It was shown, that significant variations between the different means of loading exist. |
| Databáze: | OpenAIRE |
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