Recent research on welding distortion prediction in thin plate fabrication by means of elastic FE computation |
| |
| Affiliation: | 1. School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, China;2. Department of Aerospace and Mechanical Engineering, Carleton University, Ottawa, Canada;3. Joining and Welding Research Institute, Osaka University, Japan;1. College of Material Science and Engineering, Chongqing University, Shazhengjie, Shapingba, Chongqing 400044, China;2. Joining and Welding Research Institute, Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan;1. Numerical Analysis Technologies, S.L. Marqués de San Esteban No. 52, 33206 Gijón, Spain;2. Department of Mechanical Engineering, University of Oviedo, Campus de Gijón, 33203 Gijón, Spain;3. Ansaldo Nucleare S.p.A., Corso Perrone 25, 16152 Genova, Italy;4. F4E, c/Josep Pla, n.2, Torres Diagonal Litoral, Edificio B3, E-08019 Barcelona, Spain;1. Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Osaka 567-0047, Ibaraki, Japan;2. Graduate School of Engineering, Osaka University, Suita, Osaka 567-0871, Japan;1. Institute of Plasma Physics Chinese Academy of Sciences, Hefei, 230031, China;2. University of Science and Technology of China, Hefei, 230022, China;3. Lappeenranta University of Technology, Lappeenranta, 53810, Finland;4. Anhui Province Key Laboratory of Special Welding Technology, Huainan, 232000, China;1. Ocean Engineering Program, COPPE, Federal University of Rio de Janeiro, P.O. BOX 68508, Rio de Janeiro 21941-972, Brazil;2. Offshore Oil/Gas Research Center, China University of Petroleum, Beijing 102249, China |
| |
| Abstract: | Elastic FE simulation with inherent deformation and interface element is an ideal and practical computational approach for predicting welding distortion in production of thin plate structures. In this study, recent researches on inherent deformation theory and welding induced buckling investigation of ship panel were sequentially introduced. Taking bead-on-plate welding as research objective (plate with 2.28 mm in thickness), integration approach with inherent strain was proposed to accurately and conveniently evaluate magnitude of inherent deformation. Also, average temperature to clarify the mechanism of influential effect of plate width on magnitude of inherent deformation was presented and examined. With the mechanism investigation of welding induced buckling by elastic FE analysis using inherent deformation, an application for predicting and mitigating the welding induced buckling in fabrication of ship panel with thin plates by employing different welding procedure patterns was carried out. Examined intermittent zigzag welding procedure is effective to reduce the magnitude of in-plane inherent shrinkages and control the possible welding induced buckling. |
| |
| Keywords: | Welding distortion prediction Inherent deformation Average temperature Thin plate welded structure Elastic FE computation Welding procedure pattern |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
