Calculating the multi-domain transient heat conduction with heat source problem by virtual boundary meshfree Galerkin method

2018 ◽  
Vol 74 (1) ◽  
pp. 465-479 ◽  
Author(s):  
Dong-Sheng Yang ◽  
Jing Ling ◽  
Hong-Ying Wang ◽  
Ting-Yi Chen ◽  
Yun-Dan Du ◽  
...  
Keyword(s):  
Heat Conduction ◽  
Heat Source ◽  
Galerkin Method ◽  
Transient Heat Conduction ◽  
Virtual Boundary

scholarly journals Development of Finite Element Solver for Welding Analysis

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Abid Ali Khan ◽  
Farzeen Shahid ◽  
Ihtzaz Qamar
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Heat Conduction ◽  
Heat Source ◽  
Welding Process ◽  
Transient Heat Conduction ◽  
Moving Heat Source ◽  
Structural Members ◽  
Final Solution ◽  
Governing Equations

Welding is a process of joining the similar or different metals. Improper welding process leads to inaccuracies and misalignments of structural members, causing high cost and delays in work. Therefore, it is essential to predict the temperature field during welding process. Different techniques can be used to predict the temperature field, which may lead to structure distortion. The present study aims to develop a finite element solver for transient heat conduction analysis. The final solution is calculated from the assumed solution and compared with the numerical computations. The solver is then modified for use of moving heat source. The modification comprise, change in governing equations with the inclusion of phase change. The moving heat source continuously increases the temperature during motion. When the heat source completes a pass, model is allowed to cool down in order to study the temperature distribution during cooling.

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