ABSTRACT
An evaluation of glass reinforced plastic pipe stub-flange behaviour during hydrostatic
pressure testing is presented. Similar flanges made according to different
manufacturing methods were analysed. Linear static analysis using MSC Patran /
Nastran was performed to predict the critically loaded regions subjected to high stress
concentrations. These regions were used for experimental strain gauge locations.
Hydrostatic testing designed according to BS 5480 and ASTM F 37 was performed on
assembled flange joints to initiate both leakage and ultimate material failure.
Experimental strain results were compared to finite element numerical results at the
selected locations. Fibre dominated failure characterised by cracks extending through
the stub and matrix dominated failure characterised by interlaminar debonding were
noticed. The need for further work analyzing GRP flanges subject to mechanical load
and taking into account induced residual thermal stress effects is suggested.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/4833 |
| Date | 16 May 2008 |
| Creators | Asumani, Oscar |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 9998 bytes, 16045 bytes, 19645 bytes, 13823 bytes, 18800 bytes, 21440 bytes, 19855 bytes, 989309 bytes, 78778 bytes, 929660 bytes, 107337 bytes, 553982 bytes, 255024 bytes, 26509 bytes, 1039115 bytes, 10910 bytes, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf, application/pdf |
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