Thermo-Mechanical Modeling of Additive Manufacturing
Thermo-mechanical Modeling of Additive Manufacturing provides the background, methodology and description of modeling techniques to enable the reader to perform their own accurate and reliable simulations of any additive process. Part I provides an in depth introduction to the fundamentals of additive manufacturing modeling, a description of adaptive mesh strategies, a thorough description of thermal losses and a discussion of residual stress and distortion. Part II applies the engineering fundamentals to direct energy deposition processes including laser cladding, LENS builds, large electron beam parts and an exploration of residual stress and deformation mitigation strategies. Part III concerns the thermo-mechanical modeling of powder bed processes with a description of the heat input model, classical thermo-mechanical modeling, and part scale modeling. The book serves as an essential reference for engineers and technicians in both industry and academia, performing both research and full-scale production. Additive manufacturing processes are revolutionizing production throughout industry. These technologies enable the cost-effective manufacture of small lot parts, rapid repair of damaged components and construction of previously impossible-to-produce geometries. However, the large thermal gradients inherent in these processes incur large residual stresses and mechanical distortion, which can push the finished component out of engineering tolerance. Costly trial-and-error methods are commonly used for failure mitigation. Finite element modeling provides a compelling alternative, allowing for the prediction of residual stresses and distortion, and thus a tool to investigate methods of failure mitigation prior to building. - Provides understanding of important components in the finite element modeling of additive manufacturing processes necessary to obtain accurate results - Offers a deeper understanding of how the thermal gradients inherent in additive manufacturing induce distortion and residual stresses, and how to mitigate these undesirable phenomena - Includes a set of strategies for the modeler to improve computational efficiency when simulating various additive manufacturing processes - Serves as an essential reference for engineers and technicians in both industry and academia
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Thermo-Mechanical Modeling of Additive Manufacturing
Thermo-mechanical Modeling of Additive Manufacturing provides the background, methodology and description of modeling techniques to enable the reader to perform their own accurate and reliable simulations of any additive process. Part I provides an in depth introduction to the fundamentals of additive manufacturing modeling, a description of adaptive mesh strategies, a thorough description of thermal losses and a discussion of residual stress and distortion. Part II applies the engineering fundamentals to direct energy deposition processes including laser cladding, LENS builds, large electron beam parts and an exploration of residual stress and deformation mitigation strategies. Part III concerns the thermo-mechanical modeling of powder bed processes with a description of the heat input model, classical thermo-mechanical modeling, and part scale modeling. The book serves as an essential reference for engineers and technicians in both industry and academia, performing both research and full-scale production. Additive manufacturing processes are revolutionizing production throughout industry. These technologies enable the cost-effective manufacture of small lot parts, rapid repair of damaged components and construction of previously impossible-to-produce geometries. However, the large thermal gradients inherent in these processes incur large residual stresses and mechanical distortion, which can push the finished component out of engineering tolerance. Costly trial-and-error methods are commonly used for failure mitigation. Finite element modeling provides a compelling alternative, allowing for the prediction of residual stresses and distortion, and thus a tool to investigate methods of failure mitigation prior to building. - Provides understanding of important components in the finite element modeling of additive manufacturing processes necessary to obtain accurate results - Offers a deeper understanding of how the thermal gradients inherent in additive manufacturing induce distortion and residual stresses, and how to mitigate these undesirable phenomena - Includes a set of strategies for the modeler to improve computational efficiency when simulating various additive manufacturing processes - Serves as an essential reference for engineers and technicians in both industry and academia
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Thermo-Mechanical Modeling of Additive Manufacturing

Thermo-Mechanical Modeling of Additive Manufacturing

Thermo-Mechanical Modeling of Additive Manufacturing
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Thermo-Mechanical Modeling of Additive Manufacturing

Thermo-Mechanical Modeling of Additive Manufacturing

Overview

Thermo-mechanical Modeling of Additive Manufacturing provides the background, methodology and description of modeling techniques to enable the reader to perform their own accurate and reliable simulations of any additive process. Part I provides an in depth introduction to the fundamentals of additive manufacturing modeling, a description of adaptive mesh strategies, a thorough description of thermal losses and a discussion of residual stress and distortion. Part II applies the engineering fundamentals to direct energy deposition processes including laser cladding, LENS builds, large electron beam parts and an exploration of residual stress and deformation mitigation strategies. Part III concerns the thermo-mechanical modeling of powder bed processes with a description of the heat input model, classical thermo-mechanical modeling, and part scale modeling. The book serves as an essential reference for engineers and technicians in both industry and academia, performing both research and full-scale production. Additive manufacturing processes are revolutionizing production throughout industry. These technologies enable the cost-effective manufacture of small lot parts, rapid repair of damaged components and construction of previously impossible-to-produce geometries. However, the large thermal gradients inherent in these processes incur large residual stresses and mechanical distortion, which can push the finished component out of engineering tolerance. Costly trial-and-error methods are commonly used for failure mitigation. Finite element modeling provides a compelling alternative, allowing for the prediction of residual stresses and distortion, and thus a tool to investigate methods of failure mitigation prior to building. - Provides understanding of important components in the finite element modeling of additive manufacturing processes necessary to obtain accurate results - Offers a deeper understanding of how the thermal gradients inherent in additive manufacturing induce distortion and residual stresses, and how to mitigate these undesirable phenomena - Includes a set of strategies for the modeler to improve computational efficiency when simulating various additive manufacturing processes - Serves as an essential reference for engineers and technicians in both industry and academia

Product Details

ISBN-13: 9780128118214
Publisher: Butterworth-Heinemann
Publication date: 08/03/2017
Sold by: Barnes & Noble
Format: eBook
Pages: 294
File size: 37 MB
Note: This product may take a few minutes to download.

About the Author

Michael Gouge is a Research Engineer for Autodesk where he focuses on validating and improving the thermo-mechanical modeling of additive manufacturing processes. He completed a Ph.D in mechanical engineering at the Pennsylvania State University under Dr. Pan Michaleris. His graduate research was on the finite element modeling of heat transfer, distortion, microstructure, and material properties of directed energy deposition processes, an area in which has authored several peer reviewed journal articles. He has also received a B.A. in philosophy from Austin Peay, a B.S. in mechanical engineering from the University of Texas San Antonio, and a M.S. in mechanical engineering from Penn State.
Pan Michaleris is a Senior Software Architect at Autodesk Inc. He received his Ph.D. in 1994 in theoretical and applied mechanics at the University of Illinois at Urbana-Champaign, and was a senior research engineer at the Edison Welding Institute (EWI) until 1997. Pan served as a professor in the Mechanical and Nuclear Engineering Department at the Pennsylvania State University from 1997-2016. In 2012, Michaleris founded and served as both president and lead developer at Pan Computing LLC. Pan Computing was a software development and commercialization company for physics-based modeling of additive manufacturing processes. Pan Computing was acquired by Autodesk Inc. in 2016. His areas of interest include computational mechanics, finite element methods, manufacturing process modeling, and residual stress and distortion. Michaleris authored Minimization of Welding Distortion and Buckling and in addition to more than 80 peer reviewed journal and proceedings papers. He formerly served on the editorial board of Science and Technology in Welding and Joining, and was an associate editor for Welding Journal.

Table of Contents

Part I The fundamentals of additive manufacturing modeling1. An introduction to additive manufacturing processes and their modeling challengesMichael Fielding Gouge, Pan Michaleris2. The Finite Element Method for the Thermo-Mechanical Modeling of Additive Manufacturing ProcessesErik Denlinger, Jeff Irwin, Michael Fielding Gouge Part II Thermomechanical modeling of Direct Energy Deposition processes3. Convection Boundary Losses During Laser CladdingMichael Fielding Gouge4. Conduction Losses due to Part Fixturing During Laser CladdingMichael Fielding Gouge5. Microstructure and Material Properties of AM BuildsAllison Michelle Beese 6. Understanding microstructure evolution during additive manufacturing of metallic alloys using phase-field modelingYanzhou Ji, Lei Chen, Long-Qing Chen7. Modeling Microstructure and Material Properties of AM Processes Using the FE MethodJeff Irwin8. Thermo-mechanical Modeling of Thin Wall Builds Using the Direct ProcessJarred Heigel9. Residual Stress and Distortion Modeling of Electron Beam Direct Manufacturing Ti-6Al-4VErik Denlinger10. Thermo-mechanical Modeling of Large Electron Beam BuildsErik Denlinger11. Mitigation of Distortion in Large Additive Manufacturing PartsErik Denlinger Part III Thermomechanical modeling of powder bed processes12. Development and Numerical Verification of an Adaptive Mesh Coarsening Strategy for Simulating Laser Powder Bed Fusion ProcessesErik Denlinge13. Experimental Validation for In Situ Distortion Modeling of the Laser Powder Bed Fusion ProcessErik Denlinger14. Scan Pattern Effects in Laser Powder Bed Fusion Processes: In Situ Measurements and Experimental ValidationAlexander Dunbar 15. Experimental Validation of Multi-scale Thermo-mechanical Modeling of Laser Powder Bed Fusion ProcesseJeff Irwin, Michael Fielding Gouge

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Describes the history and methodology of thermo-mechanical modeling techniques to create accurate and reliable additive manufacturing process simulations

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