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Modified Equivalent Load Method for Welding Distortion Analysis
- Source :
- Journal of Marine Science and Engineering, Volume 8, Issue 10, Journal of Marine Science and Engineering, Vol 8, Iss 794, p 794 (2020)
- Publication Year :
- 2020
- Publisher :
- MDPI AG, 2020.
-
Abstract
- In this study, modified equivalent load method for welding distortion analysis is suggested to improve its accuracy. To avoid the excessive computational time for welding distortion analysis of large welded structures, shell element-based elastic analysis methods are widely used, applying the inherent deformation approach. Equivalent nodal forces are commonly used in common FE (Finite Element) codes to enter these inherent deformation values. However, the conventional method cannot estimate precise longitudinal bending following the conventional equation. In this study, the problem of the existing equivalent load method is analyzed by a case study, and the modified equivalent load method that can estimate angular distortion, transverse shrinkage, and longitudinal bending is presented based on the FEM principle. The results show that by applying the proposed method, the shell element-based elastic FE approach for the welding distortion analysis can be achieved with improved accuracy.
- Subjects :
- 0209 industrial biotechnology
Materials science
Distortion analysis
Ocean Engineering
02 engineering and technology
Welding
Bending
Angular distortion
Deformation (meteorology)
law.invention
ship production
lcsh:Oceanography
welding distortion analysis
020901 industrial engineering & automation
lcsh:VM1-989
law
lcsh:GC1-1581
Water Science and Technology
Civil and Structural Engineering
Shrinkage
business.industry
lcsh:Naval architecture. Shipbuilding. Marine engineering
Structural engineering
simulation
021001 nanoscience & nanotechnology
Finite element method
Transverse plane
Physics::Accelerator Physics
0210 nano-technology
business
equivalent load method
Subjects
Details
- ISSN :
- 20771312
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Journal of Marine Science and Engineering
- Accession number :
- edsair.doi.dedup.....1cc29c99795df8c83a7a0b1259f81484