Inherent strain method in Metal Additive Manufacturing simulation (using subroutines and Python scripting in Abaqus)
This tutorial package focuses on the Inherent Strain method in Abaqus, an efficient numerical approach to simulate Laser Powder Bed Fusion (LPBF) in metal additive manufacturing.
It addresses the high computational cost of detailed thermo-mechanical LPBF simulations by utilizing an agglomeration approach to transfer inherent strain from micro to macro-scale models. Through theoretical explanations and practical workshops, users will learn to implement the ISM method, including Dflux and USDFLD subroutine coding and Python scripting, for improved LPBF process simulation control. This product does not utilize AM plugins, making it ideal for users who prioritize transparency in calculation methods and flexibility in variable modification for similar models.Laser Assisted Machining (LAM): Modeling and Simulation in Abaqus/CAE
In this tutorial, a comprehensive discussion on modeling and simulation of laser assisted machining is presented. It includes building FEM-based models of machining, laser heating, and laser-assisted machining models in Abaqus/CAE. The finite element method (FEM) simulation is based on the coupled thermo-mechanical behavior. The package walks learners through building models that simulate the impact of laser heating on the workpiece. Detailed lessons cover constructing basic machining and laser heating models, setting boundary conditions like cutting speed and laser power, and writing subroutines such as DFLUX and VDFLUX to simulate laser heat sources. Additionally, learners will perform analyses to study temperature distribution, and stress-strain behavior. Through parametric analysis and comprehensive result evaluation, learners will gain a deep understanding of temperature distribution, stress behavior, and how laser heating can improve the machining process.