Based on the momentum balance principle a new governing equation for the dynamic crack propagation is presented. Through the combination of the experimental data obtained in Part I of this research and the model here developed, the quantitative prediction of the dynamic crack evolution as a function of the time, the material dynamic fracture properties, including pipeline limiting crack speed, and the conditions to obtain leak before break are obtained. The use of this test/analysis methodology allows the prevention of unstable axial crack propagation in pipelines, assuring their structural integrity.
Dynamic axial crack propagation in steel line pipes. Part II: Theoretical developments
Dynamische axiale Rissausbreitung in Stahl-Pipelines. Teil II: Theoretische Entwicklungen
Engineering Fracture Mechanics ; 72 , 16 ; 2535-2548
2005
14 Seiten, 15 Quellen
Article (Journal)
English
Dynamic crack propagation in steel line pipes. Part I: Experimental investigation
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