Skip to main content

Thermo Mechanical Modeling Of Additive Manufacturing

In Order to Read Online or Download Thermo Mechanical Modeling Of Additive Manufacturing Full eBooks in PDF, EPUB, Tuebl and Mobi you need to create a Free account. Get any books you like and read everywhere you want. Fast Download Speed ~ Commercial & Ad Free. We cannot guarantee that every book is in the library!

Thermo Mechanical Modeling of Additive Manufacturing

Thermo Mechanical Modeling of Additive Manufacturing Book
Author : Michael Gouge,Pan Michaleris
Publisher : Butterworth-Heinemann
Release : 2017-08-03
ISBN : 0128118210
Language : En, Es, Fr & De

GET BOOK

Book Description :

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

Thermo mechanical Model Development and Experimental Validation for Directed Energy Deposition Additive Manufacturing Processes

Thermo mechanical Model Development and Experimental Validation for Directed Energy Deposition Additive Manufacturing Processes Book
Author : Jarred Heigel
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

Additive manufacturing (AM) enables parts to be built through the layer-by-layer addition of molten metal. In directed energy deposition (DED) AM, metal powder or wire is added into a melt pool that follows a pattern to fill in the cross section of the part. When compared to traditional manufacturing processes, AM has manyadvantages such as the ability to make internal features and to repair high-value parts. However, the large thermal gradients generated by AM result in plastic deformation. Thermo-mechanical models must be developed to predict the temperature and distortion produced by this process.Thermo-mechanical models have been developed for AM by several investigators. These models are often validated by measuring the temperatures during the deposition of a small part and the final distortion of the part. Unfortunately this is not a sufficientvalidation method for the non-linear thermo-mechanical model. Although good agreement between the thermal model and the temperatures measured during a small depositions can be achieved, it does not necessarily mean that the model will be accurate for an industrially relevant part that requires 10^2 - 10^4 tracks and hours of processing time. The relatively small deviations between the model and the validation will propagate when modeling large depositions and could produce inaccurate results. The errors in a large part will be increased further if the assumptions made of thethermal boundary conditions are not appropriate for the system.The objective of this work is to develop and experimentally validate thermo-mechanical models for DED. Experiments are performed to characterize the distortion induced by laser cladding. The depositions require many tracks and nearly an hour of processing time, during which the temperature and the deflection are measured in situ so that the response of the plate to each deposition track is understood. Measurements are then made of the convection caused by two different laser deposition heads. Thermo-mechanical models are developed by implementing the measured rate of convective heat transfer and the temperature dependent material properties. The models are validated using in situ measurements of the temperatureand the deflection generated during the process, as well as post-process measurements of the residual stress and the distortedshape. Finally, experiments and models are used to investigate the impact of feedstock selection, either powder or wire, on the DEDprocess.

Thermo mechanical Modeling of Metallic Substrates Around Laser induced Melt Pools

Thermo mechanical Modeling of Metallic Substrates Around Laser induced Melt Pools Book
Author : Yi Shu
Publisher : Unknown
Release : 2020
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

Additive manufacturing (AM) has introduced new possibilities of creating sophisticated designs and structures. Selective Laser Melting (SLM) is an AM technique where structures are fabricated by selectively melting and fusing powder layers. In SLM, melt pools are induced by a laser beam moving on the top surface of a substrate submerged in a powder bed. Mechanical properties of additively manufactured metallic parts are known to be strongly affected by thermal histories, and residual stresses arise due to large temperature gradients. Thermo-mechanical models would help to gain information about both, which is usually hard to obtain. This thesis focuses on examining how well thermal histories and residual stresses in metallic substrates around laser-induced melt pools can be computed by thermo-mechanical models, through experiments on substrates of 17-4PH Stainless Steel (SS) and Ti-6Al-4V. In the first set of experiments, one of two different laser beams moves with constant velocity and power over substrates of 17-4PH SS or Ti-6Al-4V. The substrates are sectioned and etched to expose melt pool traces. In the second set of experiments, single-pass lasers move with constant velocity and power on top surfaces of 17-4PH SS substrates. The time evolution of the deflection of substrates are recorded with a high speed camera. Two types of heat transfer models (accounting for and not accounting for convective heat transfer through fluid flow) reproduced the melt pool traces in the first set of experiments. Predicted thermal histories were critically analyzed. As an extension, how well the model accounting for convective heat transfer reproduced the effect of a substrate edge on the melt pool was examined. Later, the model without convective heat transfer was applied to real-time ultrasonic monitoring of a melt pool in metallic substrates. For the second set of experiments, the model based on heat conduction and elasto-viscoplasticity reproduced the time evolution of deflection of 17-4PH SS substrates. The contributions of this thesis are as follows. Through experiments with various combinations of laser power, scanning speed, power density distribution and metallic material, we show that simply reproducing melt pool traces is insufficient to determine thermal histories. Specifically, for a non-axisymmetric laser beam, three-dimensional melt pool shapes can be disparate even if their two-dimensional traces are very similar. Convective heat transfer in laser-induced melt pools cannot be completely ignored, otherwise there may be inconsistencies between the model and experiment conditions, as well as distortion of thermal histories related to phase transformation. With experiments of laser melting tracks near edges of substrates, we demonstrate that the model accounting for convective heat transfer can consistently reproduce melt pool traces affected by a substrate's edge. We have proven the existence of scattering waves by the presence of a melt pool through simulation, for a possibility of monitoring the state of laser-induced melt pool in real-time with ultrasound. We have designed deflection experiments of metallic substrates monitored by a high-speed camera, which would benefit calibrating thermo-mechanical models for residual stresses because of the substrate's simple thermal and mechanical history. By reproducing the deflection experiments with the model based on heat conduction and elasto-viscoplasticity, we conclude that the solid state phase transformation plays an indispensable role in the evolution of residual stresses of 17-4PH SS. We also highlight the necessity of monitoring time evolution instead of the end state when evaluating models for residual stress of alloys with volume change during phase transformation.

3D Printing

3D Printing Book
Author : Dragan Cvetković
Publisher : BoD – Books on Demand
Release : 2018-10-10
ISBN : 1789239656
Language : En, Es, Fr & De

GET BOOK

Book Description :

This book, "3D Printing", is divided into two parts: the first part is devoted to the relationship between 3D printing and engineering, and the second part shows the impact of 3D printing on the medical sector in general. There are five sections in the first part (sections are dedicated to stereolithography, new techniques of high-resolution 3D printing, application of 3D printers in architecture and civil engineering, the additive production with the metal components and the management of production by using previously mentioned technology in more complex ways). There are four chapters in the second part with the following topics: education of medical staff through surgical simulations, tissue engineering and potential applications of 3D printing in ophthalmology and orthopedics.

Composite Materials and Material Engineering II

Composite Materials and Material Engineering II Book
Author : Xiao Hong Zhu
Publisher : Trans Tech Publications Ltd
Release : 2018-08-15
ISBN : 3035732965
Language : En, Es, Fr & De

GET BOOK

Book Description :

The 3rd International Conference on Composite Materials and Material Engineering (ICCMME 2018) Selected, peer reviewed papers from the 3rd International Conference on Composite Materials and Material Engineering (ICCMME2018), January 26-28, 2018, Singapore

Recent Development in Machining Materials and Mechanical Technologies III

Recent Development in Machining  Materials and Mechanical Technologies III Book
Author : Huy Bich Nguyen
Publisher : Trans Tech Publications Ltd
Release : 2019-10-24
ISBN : 3035734828
Language : En, Es, Fr & De

GET BOOK

Book Description :

This volume contains the selected papers presented at the 2018 International Conference on Machining, Materials and Mechanical Technologies (IC3MT 2018), which was held in Ho Chi Minh City, Vietnam on 19th-22nd of September 2018. We hope this collection will be interesting and useful for many researchers and engineers from various fields of materials science and mechanical engineering.

3D Printing of Non Metallic Materials

3D Printing of Non Metallic Materials Book
Author : Robert J. Lancaster,Alessandro Fortunato,Stanislav Kolisnychenko
Publisher : Trans Tech Publications Ltd
Release : 2021-01-20
ISBN : 3035735042
Language : En, Es, Fr & De

GET BOOK

Book Description :

Aggregated Book

Laser Based Additive Manufacturing of Metal Parts

Laser Based Additive Manufacturing of Metal Parts Book
Author : Linkan Bian,Nima Shamsaei,John Usher
Publisher : CRC Press
Release : 2017-08-09
ISBN : 1498739997
Language : En, Es, Fr & De

GET BOOK

Book Description :

Laser-Based Additive Manufacturing (LBAM) technologies, hailed by some as the "third industrial revolution," can increase product performance, while reducing time-to-market and manufacturing costs. This book is a comprehensive look at new technologies in LBAM of metal parts, covering topics such as mechanical properties, microstructural features, thermal behavior and solidification, process parameters, optimization and control, uncertainty quantification, and more. The book is aimed at addressing the needs of a diverse cross-section of engineers and professionals.

Mathematical Modeling in Cultural Heritage

Mathematical Modeling in Cultural Heritage Book
Author : Elena Bonetti,Cecilia Cavaterra,Roberto Natalini,Margherita Solci
Publisher : Springer
Release : 2021-02-04
ISBN : 9783030580766
Language : En, Es, Fr & De

GET BOOK

Book Description :

This work collects the contributions presented at the INdAM Workshop “Mathematical modeling and Analysis of degradation and restoration in Cultural Heritage – MACH2019” held in Rome in March 2019. The book is focused on mathematical modeling and simulation techniques with the aim of improving the current strategies of conservation and restoration in cultural heritage, sharing different experiences and approaches. The main topics are: corrosion and sulphation of materials, damage and fractures, stress in thermomechanical systems, contact and adhesion problems, phase transitions and reaction-diffusion models, restoration techniques, additive manufacturing. The final goal is to build a permanent bridge between the experts in cultural heritage and the mathematical community. The work is addressed to experts in cultural heritage and to mathematicians.

3D Printing and Additive Manufacturing Technologies

3D Printing and Additive Manufacturing Technologies Book
Author : L. Jyothish Kumar,Pulak M. Pandey,David Ian Wimpenny
Publisher : Springer
Release : 2018-08-02
ISBN : 9811303053
Language : En, Es, Fr & De

GET BOOK

Book Description :

This book presents a selection of papers on advanced technologies for 3D printing and additive manufacturing, and demonstrates how these technologies have changed the face of direct, digital technologies for the rapid production of models, prototypes and patterns. Because of their wide range of applications, 3D printing and additive manufacturing technologies have sparked a powerful new industrial revolution in the field of manufacturing. The evolution of 3D printing and additive manufacturing technologies has changed design, engineering and manufacturing processes across such diverse industries as consumer products, aerospace, medical devices and automotive engineering. This book will help designers, R&D personnel, and practicing engineers grasp the latest developments in the field of 3D Printing and Additive Manufacturing.

Additive Manufacturing of High performance Metals and Alloys

Additive Manufacturing of High performance Metals and Alloys Book
Author : Igor Shishkovsky
Publisher : BoD – Books on Demand
Release : 2018-07-11
ISBN : 1789233887
Language : En, Es, Fr & De

GET BOOK

Book Description :

Freedoms in material choice based on combinatorial design, different directions of process optimization, and computational tools are a significant advantage of additive manufacturing technology. The combination of additive and information technologies enables rapid prototyping and rapid manufacturing models on the design stage, thereby significantly accelerating the design cycle in mechanical engineering. Modern and high-demand powder bed fusion and directed energy deposition methods allow obtaining functional complex shapes and functionally graded structures. Until now, the experimental parametric analysis remains as the main method during AM optimization. Therefore, an additional goal of this book is to introduce readers to new modeling and material's optimization approaches in the rapidly changing world of additive manufacturing of high-performance metals and alloys.

Recent Advances in Mechanical Engineering

Recent Advances in Mechanical Engineering Book
Author : Mohammad Muzammil
Publisher : Springer Nature
Release : 2021-05-10
ISBN : 9811587043
Language : En, Es, Fr & De

GET BOOK

Book Description :

Download Recent Advances in Mechanical Engineering book written by Mohammad Muzammil, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Advances in Applied Mechanical Engineering

Advances in Applied Mechanical Engineering Book
Author : Hari Kumar Voruganti,K. Kiran Kumar,P. Vamsi Krishna,Xiaoliang Jin
Publisher : Springer Nature
Release : 2020-02-01
ISBN : 9811512019
Language : En, Es, Fr & De

GET BOOK

Book Description :

This book presents select peer reviewed proceedings of the International Conference on Applied Mechanical Engineering Research (ICAMER 2019). The books examines various areas of mechanical engineering namely design, thermal, materials, manufacturing and industrial engineering covering topics like FEA, optimization, vibrations, condition monitoring, tribology, CFD, IC engines, turbo-machines, automobiles, manufacturing processes, machining, CAM, additive manufacturing, modelling and simulation of manufacturing processing, optimization of manufacturing processing, supply chain management, and operations management. In addition, recent studies on composite materials, materials characterization, fracture and fatigue, advanced materials, energy storage, green building, phase change materials and structural change monitoring are also covered. Given the contents, this book will be useful for students, researchers and professionals working in mechanical engineering and allied fields.

Mechanics of Additive and Advanced Manufacturing Volume 8

Mechanics of Additive and Advanced Manufacturing  Volume 8 Book
Author : Sharlotte Kramer,Jennifer L. Jordan,Helena Jin,Jay Carroll,Alison M. Beese
Publisher : Springer
Release : 2018-09-06
ISBN : 3319950835
Language : En, Es, Fr & De

GET BOOK

Book Description :

Mechanics of Additive and Advanced Manufacturing, Volume 8 of the Proceedings of the 2018 SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the eighth volume of eight from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies, including: Fatigue & Fracture in AM Materials Additively Manufactured Metals & Structures AM Process Characterization Processing & Mechanical Behavior of AM Materials Dynamic Response of AM Materials Additively Manufactured Polymers & Composites

Experimental Design for Process Parameter Correlation to Dimensional Inaccuracies in Additive Manufacturing Processes

Experimental Design for Process Parameter Correlation to Dimensional Inaccuracies in Additive Manufacturing Processes Book
Author : David Corbin
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

The objective of this work is to develop a comprehensive set of experiments for the investigation of the effects of Directed Energy Deposition (DED) processing parameters on dimensional accuracy. Dimensional accuracy, defined as the quantitative assessment of the agreement between the intended geometry and the final geometry of the deposited part, is understood to be one of the most important aspects of quality of an Additive Manufacturing (AM) process. This outcome is generally defined by the heat input affecting dimensions of the process including the capture efficiency of the injected powder, melt-pool size, and thermal cycling of the deposited part. Experiments were designed to generalize the effects of common DED processing parameters and their interactions on dimensional accuracy measured in situ and post-process. The experimental measurements assisted the development of validated, thermo-mechanical models that determined deformation-causing mechanisms in ways that traditional, measurement strategies fail. These models can act as a predictive tool in the assessment of the dimensional accuracy of subsequent directed energy depositions.

Advances in Additive Manufacturing Modeling Systems and 3D Prototyping

Advances in Additive Manufacturing  Modeling Systems and 3D Prototyping Book
Author : Massimo Di Nicolantonio,Emilio Rossi,Thomas Alexander
Publisher : Springer
Release : 2019-06-04
ISBN : 303020216X
Language : En, Es, Fr & De

GET BOOK

Book Description :

This book discusses the latest advances in digital modeling systems (DMSs) and additive manufacturing (AM) technologies. It covers applications of networked technologies, ubiquitous computing, new materials and hybrid production systems, discussing how they are changing the processes of conception, modeling and production of products and systems of product. The book emphasizes ergonomic and sustainability issues, as well as timely topics such as DMSs and AM in Industry 4.0, DMSs and AM in developing countries, DMSs and AM in extreme environments, thus highlighting future trends and promising scenarios for further developing those technologies. Based on the AHFE 2019 International Conference on Additive Manufacturing, Modeling Systems and 3D Prototyping, held on July 24-28, 2019, in Washington D.C., USA, the book is intended as source of inspiration for researchers, engineers and stakeholders, and to foster interdisciplinary and international collaborations between them.

Advances in Mechanical Engineering Materials and Mechanics

Advances in Mechanical Engineering  Materials and Mechanics Book
Author : Mohamed Kharrat,Mounir Baccar,Fakhreddine Dammak
Publisher : Springer Nature
Release : 2020-08-04
ISBN : 3030520714
Language : En, Es, Fr & De

GET BOOK

Book Description :

This book reports on cutting-edge research in the broad fields of mechanical engineering and mechanics. It describes innovative applications and research findings in applied and fluid mechanics, design and manufacturing, thermal science and materials. A number of industrially relevant recent advances are also highlighted. All papers were carefully selected from contributions presented at the International Conference on Advances in Mechanical Engineering and Mechanics, ICAMEM2019, held on December 16–18, 2019, in Hammamet, Tunisia, and organized by the Laboratory of Electromechanical Systems (LASEM) at the National School of Engineers of Sfax (ENIS) and the Tunisian Scientific Society (TSS), in collaboration with a number of higher education and research institutions in and outside Tunisia.

Ceramic Abstracts

Ceramic Abstracts Book
Author : Anonim
Publisher : Unknown
Release : 2000
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

Download Ceramic Abstracts book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Solid Freeform and Additive Fabrication 2000 Volume 625

Solid Freeform and Additive Fabrication   2000  Volume 625 Book
Author : Stephen C. Danforth,Duane Dimos,Fritz B. Prinz
Publisher : Materials Research Society
Release : 2000-10-02
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.

Magnesium 2021

Magnesium 2021 Book
Author : Alan Luo,Mihriban Pekguleryuz,Sean Agnew,John Allison,Karl Kainer,Eric Nyberg,Warren Poole,Kumar Sadayappan,Bruce Williams,Steve Yue
Publisher : Springer
Release : 2021-06-20
ISBN : 9783030724313
Language : En, Es, Fr & De

GET BOOK

Book Description :

This collection from the 12th International Conference on Magnesium Alloys and Their Applications (Mg 2021)—the longest running conference dedicated to the development of magnesium alloys—covers the breadth of magnesium research and development, from primary production to applications to end-of-life management. Authors from academia, government, and industry discuss new developments in magnesium alloys and share valuable insights. Topics in this volume include but are not limited to the following: Primary production Alloy development Solidification and casting processes Forming and thermo-mechanical processing Other manufacturing process development (including joining and additive manufacturing) Corrosion and protection Modeling and simulation Structural, functional, biomedical, and energy applications Advanced characterization and fundamental theories Recycling and environmental issues