TY  - EJOU
AU  - Huang, Hui  
AU  - Murakawa, Hidekazu  

TI  - Dynamic Mesh Refining and Iterative Substructure Method for FilletWelding Thermo-Mechanical Analysis
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2015
VL  - 106
IS  - 3
SN  - 1526-1506

AB  - Dynamic mesh refining method (DMRM) developed previously was extended to multi-level refinement, and employed to perform thermal-mechanical analysis of fillet welding. The DMRM has been successfully incorporated with another efficient technique, the iterative substructure method (ISM) to greatly enhance the computation speed of welding simulation. The basic concept, hierarchical modeling and computation flowchart are described for the proposed method. A flange-to-pipe welding problem has been solved with a commercial code and the novel method to demonstrate its high accuracy and efficiency. Furthermore, the numerical analysis was performed on a large scale stiffened welding structure, and comparison of welding deformation between simulation and measurement was shown.
KW  - Mesh Refining
KW  -  Fillet welding
KW  -  Welding deformation
KW  -  Substructure
KW  -  Simulation

DO  - 10.3970/cmes.2015.106.187