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Characterising Toughness for Pipe Grad Materials

Williams

Fracture # 1995 Edinburgh

A review of the Fracture Mechanics methodology for characterising toughness is given. It is shown that the fracture resistance R is derived by computing an energy difference. It is noted that R is dependent on the constraint in the crack tip region and that this leads to the very complex behaviour observed in Charpy tests. The different types of fracture observed in this test are then discussed and the consequences for pipe performance described. It is concluded that the high toughness occurring under plane stress conditions is critical in determining performance.

Please note that the whole article content is available on PPCA website onlySource : 1995 Edinburgh

Author(s) : SKM Ting, JG Williams and A Ivankovic 2004 Milan

Recent experimental data (Ting et al (1-2) and Ting (3)) has shown that the onset and subsequent evolution of the damage (craze) was found to be sensitive to constraint effects, in addition to rates. In particular, the effect of notch depth was found to exert a greater influence on the material response than through...

The Analysis of practical failures of plastic pipelines

Author(s) : Marshall, Williams 1974 Southampton

During the last ten years, it has often been predicted that plastics will be used in increasing quantities as true engineering materials, Whilst there has been an increased acceptance of GRP as a positive alternative to metals in many applications, the use of thermoplastics for major load bearing structures has been...

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Characterising Toughness for Pipe Grad Materials

Williams

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