Fracture
Plastic Pipes Conference Association # 1998 Gothenburg
Beech
Pressure pipeline systems are a critical application for materials and demand high levels of performance and reliability. Resistance to slow crack growth is a key consideration for both metals and polymers alike, which must be dealt with by the appropriate material selection, product design and manufacturing control. This issue was recognised in the early days of the introduction of plastics pipeline systems. | The development of laboratory tests to characterise resistance to slow crack growth ranging from the traditional elevated temperature hydrostatic stress rupture. test to the more searching ‘notched specimen tests’ have been reviewed. The implementation of such tests in standards and specifications including the implications for future common European standards are discussed.
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