Abstract: Material parameters in the Gurson, Tvergaard and Needleman (GTN) model were calibrated for G20Mn5QT cast steels based on tests of tension coupons and smooth notched tensile specimens, and complementary FEA. The mesh ...

Abstract: In this paper, flow and heat transfer in a blade trailing edge cooling channel with differently shaped pin fin arrays were investigated numerically in a Reynolds number range from 10,000 to 50,000. A novel internal structure, ...

Abstract: The coarse-grain heat-affected zone (CGHAZ) is often the most fragile part of the weld region due to hard phases and coarse grains generated during the welding. Characterization of the mechanical properties and fracture ...

Abstract: Cast steels are inherently suitable for fabricating complex joints in steel constructions. These joints may suffer from ductile fracture under ultralow cycle fatigue (ULCF) loadings during earthquakes. This problem could ...

Abstract: Temperature variation during the welding will cause different solid-state phase transformations in the welding area and result in a heat-affected zone (HAZ) between the weld metal (WM) and the base metal (BM). Depth-sensing ...

Abstract: The axisymmetric nonlinear stability of a shallow conical shell with a spherical cap was studied using the point collocation method with the cubic B-spline function as a trial function. Formulas were set up to consider ...

Abstract: G20Mn5QT cast steels have been widely used in cast steel connections, which may suffer from ductile fracture at ambient temperature. Northern climates make the problem even worse because the ductility of the cast steels ...

Abstract: Micromechanical fracture models, void growth model (VGM) and stress-modified critical strain (SMCS) model, can predict the ductile fracture of structural steels by investigating the growth of microvoids existing inside ...