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- W2541997192 abstract "Leaking in a CO 2 pipeline could escalate to sudden crack propagation, due to a large temperature drop. The resulting drop in fracture toughness together with the pressure stresses at the defect plane leads to pipeline brittle fracture. The main objective of this study is to monitor and predict brittle fracture behaviour of API X70 pipeline steel by means of experimental and numerical approaches, respectively. Dynamic fracture properties of CO 2 line pipe steels are generally assessed using the Charpy impact test. To this end, Charpy V-notch tests are performed at different temperatures in order to study the resistance of materials subjected to impact loading conditions. The Charpy test provides valuable indications on the impact properties of materials. Using the experimental results the ductile to brittle transition temperature curve is presented. The extended finite element method based cohesive zone approach is introduced to model the brittle fracture at low temperature. After validation of the developed model against experimental observation significant results from the simulation are graphically presented and discussed." @default.
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- W2541997192 date "2016-01-13" @default.
- W2541997192 modified "2023-10-16" @default.
- W2541997192 title "Finite element simulation of dynamic brittle fracture in pipeline steel: A XFEM-based cohesive zone approach" @default.
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- W2541997192 doi "https://doi.org/10.1177/1464420715627379" @default.
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