Weibull Analysis Effective Volume and Effective Area for a Ceramic C-Ring Test Specimen PDF Download
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Author: SF. Duffy Publisher: ISBN: Category : C-ring test specimens Languages : en Pages : 6
Book Description
C-ring specimen geometries are used to ascertain Weibull parameters for spatially distributed flaw populations in ceramic gun barrels. A review of previously published results used to compute effective areas and effective volumes for this test specimen geometry is presented along with deficiencies associated with these computations. In addition, the results of the numerical analyses presented utilizing finite-element analysis and component level reliability algorithms clearly indicate that geometric constraints called out in the current ASTM standard for C-ring testing must be revised.
Author: SF. Duffy Publisher: ISBN: Category : C-ring test specimens Languages : en Pages : 6
Book Description
C-ring specimen geometries are used to ascertain Weibull parameters for spatially distributed flaw populations in ceramic gun barrels. A review of previously published results used to compute effective areas and effective volumes for this test specimen geometry is presented along with deficiencies associated with these computations. In addition, the results of the numerical analyses presented utilizing finite-element analysis and component level reliability algorithms clearly indicate that geometric constraints called out in the current ASTM standard for C-ring testing must be revised.
Author: Rahul Jain Publisher: ISBN: Category : Ceramics Languages : en Pages : 177
Book Description
Calculation of effective volume and/or effective area is a key step in estimating reliability of ceramic component life cycle. Most common tests performed to assess the strength and reliability of components made from ceramics are bend bar specimens tested in three-point and four-point flexure, C-ring and O-ring specimen under diametral compressive or tensile loads and biaxial ring-on-ring specimens. ASTM closed form solutions for the effective volume and area exists for these specimen geometries which are based on classical theories with underlying assumptions. In general the closed form expressions are valid for limited specimen geometry bounds. An alternative numerical approach has been utilized to calculate the effective volume and area for the ceramic test specimens. The results obtained through the use of the numerical approach are compared with the closed form solutions and these comparisons point to the need for revisiting the underlying assumptions used in developing the closed form expressions.
Author: David C. Cranmer Publisher: CRC Press ISBN: 9780824795672 Category : Technology & Engineering Languages : en Pages : 450
Book Description
Describing the theoretical aspects of chemistry and microstructure that affect mechanical properties, this work offers coverage of ceramic mechanical property measurement techniques for use in component design as well as lifetime and reliability predictions. It presents procedures from both room- and elevated-temperature applications.
Author: Waltraud M. Kriven Publisher: John Wiley & Sons ISBN: 0470295252 Category : Technology & Engineering Languages : en Pages : 644
Book Description
This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics. Topics covered in the area of advanced ceramic include bioceramics, nanomaterials, composites, solid oxide fuel cells, mechanical properties and structural design, advanced ceramic coatings, ceramic armor, porous ceramics, and more.
Author: Jose Herrera-Ramirez Publisher: CRC Press ISBN: 1000596974 Category : Technology & Engineering Languages : en Pages : 255
Book Description
This book focuses on developing small weapons, following the lifecycle of a firearm from design to manufacture. It demonstrates how modern technologies can be used at every stage of the process, such as design methodologies, CAD/CAE/CAM software, rapid prototyping, test benches, materials, heat and surface treatments, and manufacturing processes. Several case studies are presented to provide detailed considerations on developing specific topics. Small weapons are designed to be carried by one person; examples are pistols, revolvers, rifles, carbines, shotguns, and submachine guns. Beginning with a review of the history of weapons from ancient to modern times, this book builds on this by mapping out recent innovations and state-of-the-art technologies that have advanced small weapon design. Presenting a comprehensive guide to computer design tools used by weapon engineers, this book demonstrates the capabilities of modern software at all stages of the process, looking at the computer-aided design, engineering, and manufacturing. It also details the materials used to create small weapons, notably steels, engineering polymers, composites, and emerging materials. Manufacturing processes, both conventional and unconventional, are discussed, for example, casting, powder metallurgy, additive manufacturing, and heat and surface treatments. This book is essential reading to those in the field of weapons, such as designers, workers in research and development, engineering and design students, students at military colleges, sportsmen, hunters, and those interested in firearms. Dr. Jose Martin Herrera-Ramirez is a military engineer with experience in the field of weapon and ammunition development. After receiving his PhD in Materials Science and Engineering from the Paris School of Mines in France, he was the head of the Applied Research Center and Technology Development for the Mexican Military Industry (CIADTIM). He now researches the development of metallic alloys and composites at the Research Center for Advanced Materials (CIMAV) in Chihuahua, Mexico. Dr. Luis Adrian Zuñiga-Aviles is a military engineer with wide experience in the field of weapon and ammunition development. He was head of the prototypes and simulation departments at the Applied Research Center and Technology Development for the Mexican Military Industry (CIADTIM) and head of engineering of the Production directorate. He received his PhD in Science and Technology on Mechatronics from the Center for Engineering and Industrial Development (CIDESI) in Queretaro, Mexico. He now researches the new product design and development for military application, machinery, robotics, and medical devices in the Faculty of Medicine at the Autonomous University of Mexico State (UAEMex) and the Faculty of Engineering at UAEMex as part of the Researchers for Mexico program CONACYT.
Author: Tatsuki Ohji Publisher: John Wiley & Sons ISBN: 1119100402 Category : Technology & Engineering Languages : en Pages : 538
Book Description
In this book project, all the American Ceramic Society's Engineering Ceramics Division Mueller and Bridge Building Award Winners, the ICACC Plenary Speakers and the past Engineering Ceramics Division Chairs have been invited to write book chapters on a topic that is compatible with their technical interests and consistent with the scope of the book, which is to focus on the current status and future prospects of various technical topics related to engineering ceramics, advanced ceramics and composite materials. Topics include: Mechanical Behavior and Performance of Ceramics & Composites Non-Destructive Evaluation and Mechanical Testing of Engineering Ceramics Brittle and Composite Material Design Modern Fracture Mechanics of Ceramics Thermal/Environmental Barrier Coatings Advanced Ceramic Coatings for Functional Applications Advanced Ceramic Joining Technologies Ceramics for Machining, Friction, Wear, and Other Tribological Applications Ceramic Composites for High-Temperature Aerospace Structures and Propulsion Systems Thermal Protection Materials: From Retrospect to Foresight Carbon/Carbon Composites Ceramic-Matrix Composites for Lightweight Construction Ultra High-Temperature Ceramics (UHTC) Nanolaminated Ternary Carbides and Nitrides (MAX Phases) Ceramics for Heat Engine and Other Energy Related Applications Solid Oxide Fuel Cells (SOFC) Armor Ceramics Next Generation Bioceramics Ceramics for Innovative Energy and Storage Systems Designing Ceramics for Electrochemical Energy Storage Devices Nanostructured Materials and Nanotechnology Advanced Ceramic Processing and Manufacturing Technologies Engineering Porous Ceramics Thermal Management Materials and Technologies Geopolymers Advanced Ceramic Sensor Technology Advanced Ceramics and Composites for Nuclear and Fusion Applications Advanced Ceramic Technologies for Rechargeable Batteries
Author: Dongliang Jiang Publisher: John Wiley & Sons ISBN: 0470640839 Category : Technology & Engineering Languages : en Pages : 680
Book Description
This volume of the Ceramic Transactions series compiles a number of papers presented at the 9th International Conference on Ceramic Materials and Components for Energy and Environmental Applications (9th CMCEE) in Shanghai, China and was the continuation of a series of international conferences held all over the world over the last three decades. This volume contains selected peer reviewed papers from more than 300 presentations from all over the world. The papers in this volume also highlight and emphasize the importance of synergy between advanced materials and component designs.
Author: Stephen F. Duffy Publisher: ISBN: Category : Ceramic materials Languages : en Pages : 36
Book Description
Two test specimen geometries obtained from circumferentially machined, tubular components have been proposed to investigate different flaw populations that might be present in a ceramic gun barrel. C-ring specimens tested in compression will generate maximum tensile stress states at the outer surface of the barrel. This stress state will activate critical flaws that are oriented parallel to the long axis of the tube. The sectored flexure bar specimen tested in four-point flexure will activate flaws aligned circumferentially around the tube. There is a need to take failure data from these tests and transform the information so that material characteristic strengths can be computed for subsequent Weibull analyses conducted on the gun barrel component. In order to compute the material characteristic strengths, the requisite Weibull effective area and/or effective volume parameters must be obtained. The procedure for numerically computing the Weibull effective area and effective volume for C-ring and sectored flexural test specimens is detailed in this article.
Author: SF. Duffy
Author: SF. Duffy
Author: Rahul Jain
Author: David C. Cranmer
Author: Waltraud M. Kriven
Author: Jose Herrera-Ramirez
Author: Tatsuki Ohji
Author: ASTM International
Author: Dongliang Jiang
Author: American Society for Testing and Materials
Author: Stephen F. Duffy