Finite Element Method Analyses of Fracture Toughness of API X70 Pipeline Steels

Abstract

One of the main properties of great interest in material design is its fracture toughness KIC that is used to assess crack growth phenomena. For instance pipelines made of high strength steel are structures which commonly present corrosion pits in service, that can propagate and cause failure. The determination of KIC values are usually achieved through exhaustive, costly and time consuming tests using Charpy specimens which are prepared from longitudinal and transversal direction of the parent tube. Therefore research of new method for KIC estimates as to reduce the production cost is strongly required. To come up to this requirement finite element method can bring accurate and rapid solution. The main aim of this work is to analysis the fracture toughness of API X70 pipeline steels using FEM under Castem 2005 code. The results, compared to experimental data, show good agreements.
Copyright © 2015 Praise Worthy Prize - All rights reserved.