[2020] Direct measurements and numerical predictions of welding-induce…
최고관리자 | 21-02-25 17:35
Thin-Walled Structures, published : May 2020
Vol.153(),
Direct measurements and numerical predictions of welding-induced initial deformations in a full-scale steel stiffened plate structure
Author(s) : Myung Su Yi, Dong Hun Lee, Hyun Ho Lee, Jeom Kee Paik
Abstract : As a sequel to another paper of the authors on welding-induced residual stresses [1], this paper aimed to obtain a direct measurement database of welding-induced initial deformations in a full-scale steel stiffened plate structure and also to study the applicability of computational models to predict them. A full-scale steel stiffened plate structure in association with bottom plate panels of an as-built 1,900 TEU containership was fabricated by exactly the same technology of welding as used in todays shipbuilding industry. The 3D scanner was employed to measure welding-induced initial deformations of the structure. Computational models using the three-dimensional thermo-elastic-plastic finite element method were developed to predict the plate initial deflections. A comparison between direct measurements and numerical predictions was made. Details of direct measurement databases are documented as they are useful to validate the computational models formulated by other researchers.
Vol.153(),
Direct measurements and numerical predictions of welding-induced initial deformations in a full-scale steel stiffened plate structure
Author(s) : Myung Su Yi, Dong Hun Lee, Hyun Ho Lee, Jeom Kee Paik
Abstract : As a sequel to another paper of the authors on welding-induced residual stresses [1], this paper aimed to obtain a direct measurement database of welding-induced initial deformations in a full-scale steel stiffened plate structure and also to study the applicability of computational models to predict them. A full-scale steel stiffened plate structure in association with bottom plate panels of an as-built 1,900 TEU containership was fabricated by exactly the same technology of welding as used in todays shipbuilding industry. The 3D scanner was employed to measure welding-induced initial deformations of the structure. Computational models using the three-dimensional thermo-elastic-plastic finite element method were developed to predict the plate initial deflections. A comparison between direct measurements and numerical predictions was made. Details of direct measurement databases are documented as they are useful to validate the computational models formulated by other researchers.