Fatigue In Additive Manufactured Metals
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Fatigue In Additive Manufactured Metals
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Author : Filippo Berto
language : en
Publisher: Elsevier
Release Date : 2023-10
Fatigue In Additive Manufactured Metals written by Filippo Berto and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10 with Technology & Engineering categories.
Fatigue in Additive Manufactured Metals provides a brief overview of the fundamental mechanics involved in metal fatigue and fracture, assesses the unique properties of additive manufactured metals, and provides an in-depth exploration of how and why fatigue occurs in additive manufactured metals. Additional sections cover solutions for preventing it, best-practice design methods, and more. The book recommends cutting-edge evidence-based approaches for designing longer lasting additive manufactured metals, discusses the latest trends in the field and the various aspects of low cycle fatigue, and looks at both post-treatment and manufacturing process-based solutions. By providing international standards and testing procedures of additive manufactured metal parts and discussing the environmental impacts of additive manufacturing of metals and outlining simulation and modeling scenarios, this book is an ideal resource for users in industry.
Multiaxial Fatigue
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Author : Darrell Socie
language : en
Publisher: SAE International
Release Date : 1999-12-15
Multiaxial Fatigue written by Darrell Socie and has been published by SAE International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-12-15 with Technology & Engineering categories.
This book provides practicing engineers, researchers, and students with a working knowledge of the fatigue design process and models under multiaxial states of stress and strain. Readers are introduced to the important considerations of multiaxial fatigue that differentiate it from uniaxial fatigue.
Quality Analysis Of Additively Manufactured Metals
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Author : Javad Kadkhodapour
language : en
Publisher: Elsevier
Release Date : 2022-11-15
Quality Analysis Of Additively Manufactured Metals written by Javad Kadkhodapour and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-15 with Technology & Engineering categories.
Quality Analysis of Additively Manufactured Metals: Simulation Approaches, Processes, and Microstructure Properties provides readers with a firm understanding of the failure and fatigue processes of additively manufactured metals. With a focus on computational methods, the book analyzes the process-microstructure-property relationship of these metals and how it affects their quality while also providing numerical, analytical, and experimental data for material design and investigation optimization. It outlines basic additive manufacturing processes for metals, strategies for modeling the microstructural features of metals and how these features differ based on the manufacturing process, and more. Improvement of additively manufactured metals through predictive simulation methods and microdamage and micro-failure in quasi-static and cyclic loading scenarios are covered, as are topology optimization methods and residual stress analysis techniques. The book concludes with a section featuring case studies looking at additively manufactured metals in automotive, biomedical and aerospace settings. Provides insights and outlines techniques for analyzing why additively manufactured metals fail and strategies for avoiding those failures Defines key terms and concepts related to the failure analysis, quality assurance and optimization processes of additively manufactured metals Includes simulation results, experimental data and case studies
Mechanical Fatigue Of Metals
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Author : José A.F.O. Correia
language : en
Publisher: Springer
Release Date : 2019-05-07
Mechanical Fatigue Of Metals written by José A.F.O. Correia and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-07 with Science categories.
This volume contains the proceedings of the XIX International Colloquium on Mechanical Fatigue of Metals, held at the Faculty of Engineering of the University of Porto, Portugal, 5-7 September 2018. This International Colloquium facilitated and encouraged the exchange of knowledge and experiences among the different communities involved in both basic and applied research in the field of the fatigue of metals, looking at the problem of fatigue exploring analytical and numerical simulative approaches. Fatigue damage represents one of the most important types of damage to which structural materials are subjected in normal industrial services that can finally result in a sudden and unexpected abrupt fracture. Since metal alloys are still today the most used materials in designing the majority of components and structures able to carry the highest service loads, the study of the different aspects of metals fatigue attracts permanent attention of scientists, engineers and designers.
Metal Additive Manufacturing Defects Analysis And Prediction Of Their Effect On Fatigue Performance
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Author : Niloofar Sanaei
language : en
Publisher:
Release Date : 2020
Metal Additive Manufacturing Defects Analysis And Prediction Of Their Effect On Fatigue Performance written by Niloofar Sanaei and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Additive manufacturing categories.
The technology of additive manufacturing (AM) which is building up parts by joining materials directly informed by 3D model data, is developing rapidly in many industries. It offers advantages such as delivering intricate and complex geometries with the least post processing required. The components made by AM are of interest in biomedical and aerospace applications. AM technologies should produce unique critical parts, such as prosthetics which undergo cyclic loading throughout their service life. Therefore, understanding fatigue behavior of AM metals is one of the most important steps in their part design. In addition, in many applications, the loading condition is multiaxial. Even in parts under uniaxial loading condition, the stress state may still be a combination of axial and shear stress due to complex geometry or interaction of residual stresses and existence of defects. The intrinsic defects of AM metals and the effect of process and post processing parameters on them were investigated in this study. The microstructure and defect content of AM metals and their correlation with fatigue performance were reviewed. The objective was to analyze characteristics of intrinsic AM defects and their variability for various materials, processing and post-processing conditions. The aim was also to evaluate the fatigue behavior of the defective AM metals, develop an appropriate defect sensitive fatigue life prediction framework, and verify the predictions with experimental data. Fracture Mechanics concepts along with phenomenological, empirical, and semi-empirical models such as Murakami's area parameter were applied. Comprehensive defect analysis and fracture surface analysis were performed in 2D by digital microscopy and scanning electron microscopy and in 3D using X-ray computed tomography. Important surface and internal defect characteristics such as size, shape (aspect ratio), location, and orientation, the material microstructure, and the loading and failure mechanism for each batch of specimens were investigated. The key factors were incorporated into fatigue life predictions with appropriate representations. Statistical functions to model the distribution of the defect characteristics, and Extreme Value Statistics (EVS) concepts to compute a prospective maximum defect size were used for fatigue life prediction. Based on the failure analysis, for tensile failure dominated specimens Maximum Principle Stress (MPS) and for shear failure dominated specimens Fatemi-Socie (FS) parameter were used to calculate the stress intensity factor range for defect-based uniaxial and multiaxial fatigue life predictions. The fracture mechanics-based framework could successfully be used for fatigue life prediction of AM metals based on their defect content.
Fatigue In Additive Manufactured Metals
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Author : Filippo Berto
language : en
Publisher: Elsevier
Release Date : 2023-10-01
Fatigue In Additive Manufactured Metals written by Filippo Berto and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-01 with Technology & Engineering categories.
Fatigue in Additive Manufactured Metals provides a brief overview of the fundamental mechanics involved in metal fatigue and fracture, assesses the unique properties of additive manufactured metals, and provides an in-depth exploration of how and why fatigue occurs in additive manufactured metals. Additional sections cover solutions for preventing it, best-practice design methods, and more. The book recommends cutting-edge evidence-based approaches for designing longer lasting additive manufactured metals, discusses the latest trends in the field and the various aspects of low cycle fatigue, and looks at both post-treatment and manufacturing process-based solutions. By providing international standards and testing procedures of additive manufactured metal parts and discussing the environmental impacts of additive manufacturing of metals and outlining simulation and modeling scenarios, this book is an ideal resource for users in industry. Discusses the underlying mechanisms controlling the fatigue behavior of additive manufactured metal components as well as how to improve the fatigue life of these components via both manufacturing processes and post-processing Studies the variability of properties in additive manufactured metals, the effects of different process conditions on mechanical reliability, probabilistic versus deterministic aspects, and more Outlines nondestructive failure analysis techniques and highlights the effects of unique microstructural characteristics on fatigue in additive manufactured metals
Additive Manufacturing Of Metals
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Author : Gregory John Gibbons
language : en
Publisher: MDPI
Release Date : 2021-05-26
Additive Manufacturing Of Metals written by Gregory John Gibbons and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-26 with Technology & Engineering categories.
This book is an exciting collection of research articles that offer a unique view into the fast developing field of metal additive manufacturing, providing insights into this advanced manufacturing technology. The articles span recent advances in metal AM technologies, and their application to a wide range of metals, exploring how the processing parameters offer unique material properties. This book encapsulates the state of the art in this rapidly evolving field of technology and will be a valuable resource for researchers in the field, from Ph.D. students to professors, and through to industrial end users.
Fatigue And Fracture Of Nanostructured Materials
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Author : Pasquale Cavaliere
language : en
Publisher: Springer Nature
Release Date : 2020-10-27
Fatigue And Fracture Of Nanostructured Materials written by Pasquale Cavaliere and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-27 with Science categories.
This book describes the main approaches for production and synthesis of nanostructured metals and alloys, taking into account the fatigue behavior of materials in additive manufactured components. Depending on the material type, form, and application, a deep discussion of fatigue properties and crack behavior is also provided. Pure nanostructured metals, complex alloys and composites are further considered. Prof. Cavaliere’s examination is supported by the most up-to-date understanding from the scientific literature along with a thorough presentation of theory. Bringing together the widest range of perspective on its topic, the book is ideal for materials researchers, professional engineers in industry, and students interested in nanostructured materials, fracture/fatigue mechanics, and additive manufacturing. Describes in detail the relevance of nanostructures in additive manufacturing technologies; Includes sufficient breadth and depth on theoretical modelling of fatigue and crack behavior for use in the classroom; Identifies many open questions regarding different theories through experimental finding; Contextualizes the latest scientific results for readers in industry.
Reliability Of Selective Laser Melted Alsi12 Alloy For Quasistatic And Fatigue Applications
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Author : Shafaqat Siddique
language : en
Publisher:
Release Date : 2019
Reliability Of Selective Laser Melted Alsi12 Alloy For Quasistatic And Fatigue Applications written by Shafaqat Siddique and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Materials categories.
Selective laser melting (SLM) has established itself as the most prominent additive manufacturing (AM) process for metallic structures in aerospace, automotive and medical industries. For a reliable employment of this process, it has to conform to the demanding requirements of these industries in terms of quasistatic and, especially, fatigue performance. Shafaqat Siddique identifies the influence of SLM processing conditions on the microstructural features, and their corresponding influence on the mechanical behavior of the processed AlSi12 alloy structures. The author also gives insight into integrated manufacturing by combining conventional and SLM processes to get the synergic benefits. Requirements for fatigue-resistant designs in additive manufacturing are highlighted, and a novel method is developed for agile fatigue life prediction. Contents State of the art and investigation methodology Characterization, quasistatic and fatigue behavior of AlSi12 alloy Hybrid AlSi12 alloy structures Fatigue prediction methodology Target Groups Students and lecturers in mechanical, manufacturing and materials engineering Research and design engineers in additive manufacturing About the Author Shafaqat Siddique worked as Scientific Assistant at Technical University Dortmund, Department of Materials Test Engineering (WPT), and completed his Ph. D. research in cooperation with Laser Zentrum Nord (LZN) in Hamburg. He continues his post-doctoral research at TU Dortmund, Germany.
Topology Optimization For Additive Manufacturing Involving High Cycle Fatigue
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Author : Shyam Suresh
language : en
Publisher: Linköping University Electronic Press
Release Date : 2020-05-05
Topology Optimization For Additive Manufacturing Involving High Cycle Fatigue written by Shyam Suresh and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-05 with categories.
Additive Manufacturing (AM) is gaining popularity in aerospace and automotive industries. This is a versatile manufacturing process, where highly complex structures are fabricated and together with topology optimization, a powerful design tool, it shares the property of providing a very large freedom in geometrical form. The main focus of this work is to introduce new developments of Topology Optimization (TO) for metal AM. The thesis consists of two parts. The first part introduces background and theory, where TO and adjoint sensitivity analysis are described. Furthermore, methodology used to identify surface layer and high-cycle fatigue are introduced. In the second part, three papers are appended, where the first paper presents the treatment of surface layer effects, while the second and third papers provide high-cycle fatigue constraint formulations. In Paper I, a TO method is introduced to account for surface layer effects, where different material properties are assigned to bulk and surface regions. In metal AM, the fabricated components in as-built surface conditions significantly affect mechanical properties, particularly fatigue properties. Furthermore, the components are generally in-homogeneous and have different microstructures in bulk regions compared to surface regions. We implement two density filters to account for surface effects, where the width of the surface layer is controlled by the second filter radius. 2-D and 3-D numerical examples are treated, where the structural stiffness is maximized for a limited mass. For Papers II and III, a high-cycle fatigue constraint is implemented in TO. A continuous-time approach is used to predict fatigue-damage. The model uses a moving endurance surface and the development of damage occurs only if the stress state lies outside the endurance surface. The model is applicable not only for isotropic materials (Paper II) but also for transversely isotropic material properties (Paper III). It is capable of handling arbitrary load histories, including non-proportional loads. The anisotropic model is applicable for additive manufacturing processes, where transverse isotropic properties are manifested not only in constitutive elastic response but also in fatigue properties. Two optimization problems are solved: In the first problem the structural mass is minimized subject to a fatigue constraint while the second problem deals with stiffness maximization subjected to a fatigue constraint and mass constraint. Several numerical examples are tested with arbitrary load histories.