About this Abstract |
Meeting |
Advances in Welding and Additive Manufacturing Research 2022
|
Symposium
|
Advances in Welding and Additive Manufacturing Research 2022
|
Presentation Title |
Advanced Simulation Tools for Welding and Additive Manufacturing |
Author(s) |
Hui Huang, Jian Chen, Zhili Feng |
On-Site Speaker (Planned) |
Hui Huang |
Abstract Scope |
Numerical simulation enables cost-effective prediction and management of thermal distortion and stresses during welding and additive manufacturing (AM) processes. However, with today’s computational tools, high-fidelity simulation by modeling the 3D transient temperature and stress evolution is extremely time-consuming, which largely hinders the application of such simulation tool in the design and optimization of actual manufacturing process. Our recent effort in development of an advanced simulation tool for welding and additive manufacturing stress problems will be introduced. Different from mainstream welding stress analysis, the simulation tool is built upon explicit finite element method which takes advantages of lumped mass matrix and Newton’s second law of motion. A novel acceleration scheme based on the unique physics associated with fusion welding has been implemented as a key feature. With the time marching accelerated by GPU, the code allows for real-time thermal mechanical simulation of arc welding and wire based additive manufacturing. The acceleration factor is in a range of x100~1000 compared with a renowned commercial software depending on the scale of the modeled problem. Application of the code in stress analysis of laser welding and additive manufacturing will also be discussed, as well as the model validation with measured distortion. The novel code has been integrated into a welding engineering software Dr-Weld that can be operated in a personal computer and workstation for high-performance computation. |
Proceedings Inclusion? |
Undecided |