Author(s): Z. Zhuang & P.E. O'Donoghue
The Small Scale Steady State (S4) test has been recently developed in order to
assess the fracture behaviour of polyethylene (PE) gas distribution pipe material
during rapid axial crack propagation.
Based on an investigation of the S4 test, a
simulation model of S4 test has been developed.
This paper describes the use of
the results obtained from the S4 test to evaluate the fracture toughness of the
material, Gj, and to predict critical pressure, p^, for rapid crack propagation
(RCP) in a full-scale pipe.
If PC has been determined, then crack propagation can
This will ensure that a crack will arrest shortly after initiation, thus
limiting the damage.
In addition, procedu...
Size: 713 kb
Paper DOI: 10.2495/LD960951
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