Abstract::Crack Tip Opening Angle (CTOA) is considered and has been attempted to
be used as a fracture parameter to describe the crack arrest toughness
of ductile steel gas pipelines. However, its evolution and influencing
factors during pipeline dynamic crack propagation are still unclear, and
its use as a crack arrest toughness parameter similar to the Charpy
impact toughness also lacks theoretical support. In view of the above
problems, this paper reproduces the full-scale test with the help of the
numerical simulat… Show more
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