Friction Stir Welding is nowadays an established technique successfully used by many industries. However, most of the research and, consequently, applications regard aluminum alloys and butt joints. T-joints are high interest for different industrial sectors as aeronautical, aerospace, naval ground transportation, which joint integrity low residual stress extremely important. In this study, exp...

many efforts have been made to model the the hot deformation (dynamic recrystallization) flow curves of different materials. phenomenological constitutive models, physical-based constitutive models and artificial neural network (ann) models are the main methods used for this purpose. however, there is no report on the modeling of warm deformation (dynamic spheroidization) flow curves of any kin...

the flow stress of steel depends significantly on microstructural changes taken place during hot deformation processes. in hot deformation processes, the flow stress of steel is influenced by two main metallurgical phenomena, i.e. recovery and recrystallization, along with its chemical composition and thermo-mechanical parameters. the final mechanical properties of steel are also determined by ...

This paper considers the problem of predicting the number, length and distribution of traffic flows some time into the future, based upon packets collected in the present. Three methods– the standard Expectation-Maximization algorithm, a distributed version of the Expectation-Maximization algorithm, and a Particle Filter– are used to predict the mean flow length and complete flow distributions ...

prediction the river flow discharge values are important in the surface water resources management. find an appropriate model to accurately predictionof this parameter is one of the most important ways to simulation and prediction. in this study three anfis, svm and gp models were evaluated and compared to modeling the monthly flow discharge of nazloochi river in tapik hydrometric station that ...