Multiscale Modeling of Additively Manufactured Metals: Application to Laser Powder Bed Fusion Process provides comprehensive coverage on the latest methodology in additive manufacturing (AM) modeling and simulation. Although there are extensive advances within the AM field, challenges to predictive theoretical and computational approaches still hinder the widespread adoption of AM. The book reviews metal additive materials and processes and discusses multiscale/multiphysics modeling strategies. In addition, coverage of modeling and simulation of AM process in order to understand the process-structure-property relationship is reviewed, along with the modeling of morphology evolution, phase transformation, and defect formation in AM parts. Residual stress, distortion, plasticity/damage in AM parts are also considered, with scales associated with the spatial, temporal and/or material domains reviewed. This book is useful for graduate students, engineers and professionals working on AM materials, equipment, process, development and modeling.

Online resource; title from digital title page (viewed on August 10, 2020).

Intro -- Multiscale Modeling of Additively Manufactured Metals: Application to Laser Powder Bed Fusion Process -- Copyright -- Contents -- Preface -- Acknowledgments -- Chapter One: Multiscale and multiphysics modeling of metal AM -- 1. Introduction -- 2. Physics in the metal AM process -- 2.1. Sintering kinetics -- 2.2. Particle mechanics -- 2.3. Heat transfer -- 2.4. Fluid flow -- 2.5. Solidification and microstructure evolution -- 2.6. Thermal stress and distortion -- 3. Multiscale and multiphysics modeling and software -- 3.1. Coupling between different scales

3.2. AM process modeling and simulation software -- 4. Current challenges in multiscale and multiphysics modeling of metal AM and future directions -- References -- Chapter Two: Metal AM materials and processes -- 1. Introduction -- 2. Powder bed fusion -- 2.1. Powder bed fusion equipment and process -- 2.2. Microstructures and mechanical properties of powder bed fusion fabricated parts -- 3. Directed energy deposition -- 3.1. Directed energy deposition equipment and process -- 3.2. Microstructures and mechanical properties of directed energy deposition fabricated parts -- 4. Binder jetting

4.1. Binder jetting equipment and process -- 4.2. Microstructures and mechanical properties of binder jetting fabricated parts -- 5. Sheet lamination -- 5.1. Sheet lamination equipment and process -- 5.2. Microstructures and mechanical properties of sheet lamination fabricated parts -- 6. Summary -- References -- Chapter Three: Molecular dynamics modeling of sintering phenomena and mechanical strength of metal particles -- 1. Introduction -- 2. Molecular dynamics method -- 3. Sintering phenomena in AM metal particles -- 3.1. Model setup of two-particle system

3.2. Sintering of two-particle system -- 3.3. Diffusion of two-particle system -- 4. Mechanical strength of AM metal particles -- 4.1. Model setup of multiple-particle system and bulk material -- 4.2. Simulation of tensile test of multiple-particle system and bulk material -- 5. Summary -- References -- Chapter Four: Kinetic Monte Carlo simulation of sintering behavior of AM particles using reconstructed microstructures fr ... -- 1. Introduction -- 2. Model description -- 2.1. Microstructure reconstruction of powder particles using synchrotron micro-CT -- 2.2. Kinetic Monte Carlo sintering model

2.3. Material properties used in the models -- 3. Results and discussion -- 3.1. Initial microstructure using grain growth model -- 3.2. Sintering simulation results -- 4. Conclusions -- References -- Chapter Five: Discrete element modeling of powder flow and laser heating in metal laser powder bed fusion process -- 1. Introduction -- 2. Discrete element model -- 2.1. Governing equations -- 2.2. Model validations -- 2.2.1. Particle flow model validation -- 2.2.2. Heat transfer model validation -- 2.3. AM process model -- 3. Sequential schematics of the AM process