Download or read book Deformation and Fracture of Ductile Metals at High Strain Rates written by Muhammad Salim Mirza and published by . This book was released on 1993 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations Into Ductile Fracture and Deformation of Metals Under Combined Quasi static Loading and Under Extremely High rate Compressive Impact Loading written by Nathan Spulak and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials experiencing impact loading deform under complex three dimensional states of stress and at high strain rates. Accurately simulating impact events using finite element modeling requires material models capable of depicting the material behavior under these same conditions. In order to create accurate material models, this material behavior must first be determined experimentally. It is of particular interest to determine the equivalent plastic fracture strain at stress states consisting of in-plane biaxial tension and out-of-plane compression, and the plastic stress-strain response at strain rates on the order of 104 s-1. Both of these conditions are found during impact loading, and are outside the scope of current testing techniques. A new test technique is used to investigate Aluminum 2024, Titanium 6Al-4V, and Inconel 718 under in-plane biaxial tension and out-of-plane compression. The test consists of a small spherical or elliptical punch that is advanced into a thin specimen plate to induce in-plane biaxial tension on the back surface of the specimen. A second plate of an appropriate material is placed against the back surface of the specimen plate during loading in order to create out-of-plane compression. The equivalent plastic fracture strain at these stress states is determined from the experimental data and simulations using the commercial finite element software LS-DYNA. The same materials mentioned above are also tested using a modified, direct impact split-Hopkinson bar testing technique to induce strain rates greater than 104 s-1. For these tests, a small cylindrical specimen is placed in contact with the end of a larger cylindrical bar. The specimen is then impacted with a free flying cylindrical projectile to compress the specimen at a high rate of deformation. The stress-strain response of the material at these high strain rates is then investigated from the experimental data and in conjunction with LS-DYNA finite element simulations.
Download or read book Ductile Fracture and Ductility written by Bradley Dodd and published by Academic Press. This book was released on 1987 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Strain Rate on the Deformation and Fracture Behavior of Ductile Metals Containing Porosity written by Paul E. Magnusen and published by . This book was released on 1984 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aluminum Lithium Alloys written by N Eswara Prasad and published by Butterworth-Heinemann. This book was released on 2013-09-20 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because lithium is the least dense elemental metal, materials scientists and engineers have been working for decades to develop a commercially viable aluminum-lithium (Al-Li) alloy that would be even lighter and stiffer than other aluminum alloys. The first two generations of Al-Li alloys tended to suffer from several problems, including poor ductility and fracture toughness; unreliable properties, fatigue and fracture resistance; and unreliable corrosion resistance. Now, new third generation Al-Li alloys with significantly reduced lithium content and other improvements are promising a revival for Al-Li applications in modern aircraft and aerospace vehicles. Over the last few years, these newer Al-Li alloys have attracted increasing global interest for widespread applications in the aerospace industry largely because of soaring fuel costs and the development of a new generation of civil and military aircraft. This contributed book, featuring many of the top researchers in the field, is the first up-to-date international reference for Al-Li material research, alloy development, structural design and aerospace systems engineering. - Provides a complete treatment of the new generation of low-density AL-Li alloys, including microstructure, mechanical behavoir, processing and applications - Covers the history of earlier generation AL-Li alloys, their basic problems, why they were never widely used, and why the new third generation Al-Li alloys could eventually replace not only traditional aluminum alloys but more expensive composite materials - Contains two full chapters devoted to applications in the aircraft and aerospace fields, where the lighter, stronger Al-Li alloys mean better performing, more fuel-efficient aircraft
Download or read book Deformation and Fracture as a Function of Strain Rate at Hot Working Temperatures written by Nicholas J. Grant and published by . This book was released on 1967 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intent of this program, originally, was to determine the role of strain rate and temperature on the hot plasticity of several classes of metals and alloys. The strain rates were comparable to those encountered in usual hot working operations, including extrusion; they varied from about 0.001 to 100 per second. It was also an intent of this program to study the deformation and fracture mechanisms which prevailed in such high strain rate tests. Both cast and wrought structures were of interest to our studies since the great bulk of all metals and alloys utilized in this world usually start as cast ingot structures. Further, the selection of materials for test was such that both single-phase and multi-phase alloys would be included, the multi-phase alloys involving both soft and hard second phases. In the course of these studies, when it became obvious that relatively low values of ductility were being obtained under the optimum conditions of strain rate and temperature, even for pure metals, means were sought to enhance the hot plasticity. One of the evident limitations of cast structures was the very coarse grain size, from 2 to 20 mm diameter; a second shortcoming was the rapid increase in grain size of the more ductile wrought materials when heating to the high test temperatures.
Download or read book Shock Waves and High Strain Rate Phenomena in Metals written by Mare Meyers and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scientific understanding of high-velocity deformation has advanced substantially during the past decade. On the one hand, the framework for a theory explaining the metallurgical effects of shock waves is beginning to take shape; on the other hand, the technological applications of high strain-rate processes have found their way into industries in countries around the world. Ex plosive cladding, welding, forming, compaction and consolidation, cutting, and hardening, in addition to high energy-rate deformation processes using other energy sources, are some of the topics of contemporary technological importance. Metallurgical effects are of the utmost importance in both the scientific understanding of the phenomena involved, and in the successful development and utilization of the associated applications. The international conference upon which this book is based had as its major objectives the acceleration of progress in the field of high-strain rate deformation and fabrication, including applications, by providing a forum for the exchange of state-of-the art information on the metallurgical effects of high strain-rate deformation and fabrication; and the organization of this informa tion into a timely and coherent body of knowledge focused around significant areas and applications. This volume is a manifestation of these objectives. In addition, the contents of this book were organized to provide for a somewhat logical perspective of the fundamentals, development, and state-of-the-art applications of high strain-rate and shock phenomena.
Download or read book High Temperature Deformation and Fracture Behavior of Metals Under High Strain Rate Conditions written by J. M. Dhosi and published by . This book was released on 1963 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book HIGH TEMPERATURE DEFORMATION AND FRACTURE BE HAVIOR OF METALS UNDER HIGH STRAIN RATE CONDITIONS written by and published by . This book was released on 1963 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the present investigation is to evaluate the high temperature deformation and fracture behavior of the following materials under high strain rate conditions: Udimet 500, Wand Be. The strain rate dependance of the ductility as demonstrated with Udimet 700 has been found with several multi-phase materials. On the other hand, homogeneous single phase metals showed rather a continuous increase of the ductility with increasing strain rate.
Download or read book Experimental and Numerical Studies of Metal Deformation and Fracture at High Strain Rates written by G. H. Majzoobi and published by . This book was released on 1990 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Material Behavior Under High Stress and Ultrahigh Loading Rates written by John Mescall and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army Materials and Mechanics Research Center in coopera tion with the Materials Science Group of the Department of Chemical Engineering and Materials Science of Syracuse University has been conducting the Annual Sagamore Army Materials Research Conference since 1954. The specific purpose of these conferences has been to bring together scientists and engineers from academic institutions, industry, and government who are uniquely qualified to explore in depth a subject of importance to the Department of Defense, the Army, and the scientific community. The proceedings of this conference, entitled MATERIAL BEHAVIOR UNDER HIGH STRESS AND ULTRAHIGH LOADING RATES, will be published in two parts. The topics covered in the present volume include dynamic plasticity, adiabatic shear/localized deformation, and dynamic fracture mechanics. Papers dealing with ordnance applica tions, projectile launch environment, and recent work-in-progress will appear as an AMMRC Technical Report and will have more limited distribution in accordance with recent Army guidelines. The Conference Chairmen are particularly grateful to the members of the Program Committee. We wish also to acknowledge the assistance of Mr. Charles Polley of the Army Materials and Mechanics Research Center, Mr. Robert Sell, Ms. Helen Brown DeMascio, and Ms. Mary Ann Holmquist of Syracuse University throughout the con ference planning stages and the publication of the text. The continued active interest in and support of these confer ences by Dr. E. Wright and Col. George Sibert, Direct and Deputy Director/Commander, respectively, of the Army Materials and Mechan ics Research Center, is appreciated.
Download or read book Deformation and Ductile Fracture of a Low Alloy Steel Under High Strain Rate Loading written by S. Abdel-Malek and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ductile Fracture of Metals written by P. F. Thomason and published by Pergamon. This book was released on 1990 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: An account of the recent developments in research into ductile fracture in metals and alloys. Aspects covered include localized fracture at the root of notches and sharp cracks, and fracture in bulk plastic-deformation processes of the metal and metal forming type. Also discusses various theoretical
Download or read book High Strain Rate Fracture Characteristics of Ductile Metals written by Muhammad Waheed and published by . This book was released on 1995 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Testing of the Plastic Deformation of Metals written by T. W. Clyne and published by Cambridge University Press. This book was released on 2021-06-10 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover a novel approach to the subject, providing detailed information about established and innovative mechanical testing procedures.
Download or read book Ductility and Formability of Metals written by Giovanni Straffelini and published by Elsevier. This book was released on 2023-03-23 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ductility and Formability of Metals: A Metallurgical Engineering Perspective uses metallurgical, mechanical and physical principles and concepts to explain ductility while emphasizing the influence of material microstructure on damage mechanisms. Focusing on steel, aluminum, copper, titanium and magnesium alloys, the book examines the strain hardening behaviors of these metals and alloys, the influence of strain rate and temperature, and ductile fracture mechanics. Hot plastic deformation is covered with special consideration given to its interplay with recrystallization phenomena. Other phenomena such as Dynamic Strain Ageing (DSA) and Adiabatic Shear Banding (ASB) are discussed, and metal working applications such as forging, extrusion and machining are included throughout. Methods for control of ductile cracks in metal parts resulting from rolling, forging, extrusion, drawing, and sheet metal forming are also outlined. Provides an overview on the plastic deformation behavior and ductile fracture of steel, aluminum, copper, titanium and magnesium alloys Illustrates the influence of microstructure on yield behavior, strain hardening of metals, and the influence of strain rate and temperature Covers the role of the strain hardening coefficient (n), strain rate index (m), Dynamic Strain Ageing (DSA), and Adiabatic Shear Banding (ASB) Metalworking applications are provided throughout, including forging, rolling, extrusion, wire drawing, sheet metal forming and machining
Download or read book Ductile brittle Transition in the Refractory Metals written by F. R. Schwartzberg and published by . This book was released on 1959 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
