Stress concentration factor prediction by the multi-dimensional Lagrangian interpolation method
Lee, Chi King
Chiew, Sing Ping
Lie, Seng Tjhen
Date of Issue2011
School of Civil and Environmental Engineering
A new approach based on the multi-dimensional Lagrangian interpolation method, which is widely used in the finite element method, is proposed for the prediction of stress concentration factor for tubular joints. When comparing with the parametric regression method, this new method uses the same set of numerical parametric study results as its inputs. The accuracy of the proposed method is validated by applying it to predict the stress concentration factor and hot spot stress of partially overlapped circular hollow section K-joints. Numerical results indicated that the new method is more reliable and accurate than the parametric regression method.
DRNTU::Engineering::Civil engineering::Structures and design
Engineering fracture mechanics
© 2011 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Engineering Fracture Mechanics, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI:http://dx.doi.org/10.1016/j.engfracmech.2010.11.013].