Ceramic Material Life Prediction: A Program to Translate Ansys Results to Cares/Life Reliability Analysis PDF Download

Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781729190722
Category : Science
Languages : en
Pages : 32

View

Book Description
This manual describes the use of the ANSCARES program to prepare a neutral file of FEM stress results taken from ANSYS Release 5.0, in the format needed by CARES/LIFE ceramics reliability program. It is intended for use by experienced users of ANSYS and CARES. Knowledge of compiling and linking FORTRAN programs is also required. Maximum use is made of existing routines (from other CARES interface programs and ANSYS routines) to extract the finite element results and prepare the neutral file for input to the reliability analysis. FORTRAN and machine language routines as described are used to read the ANSYS results file. Sub-element stresses are computed and written to a neutral file using FORTRAN subroutines which are nearly identical to those used in the NASCARES (MSC/NASTRAN to CARES) interface. Vonhermann, Pieter and Pintz, Adam Unspecified Center NAG3-879

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702

View

Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 30

View

Book Description

Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 938

View

Book Description

Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781720664659
Category :
Languages : en
Pages : 28

View

Book Description
A methodology is shown for predicting the time-dependent reliability of ceramic components against catastrophic rupture when subjected to transient thermomechanical loads (including cyclic loads). The methodology takes into account the changes in material response that can occur with temperature or time (i.e., changing fatigue and Weibull parameters with temperature or time). This capability has been added to the NASA CARES/Life (Ceramic Analysis and Reliability Evaluation of Structures/Life) code. The code has been modified to have the ability to interface with commercially available finite element analysis (FEA) codes executed for transient load histories. Examples are provided to demonstrate the features of the methodology as implemented in the CARES/Life program.Nemeth, Noel N. and Jadaan, Osama M. and Palfi, Tamas and Baker, Eric H.Glenn Research CenterMECHANICAL PROPERTIES; CERAMICS; TIME DEPENDENCE; TRANSIENT LOADS; STRUCTURAL ANALYSIS; CRACK PROPAGATION; FINITE ELEMENT METHOD; STRESS INTENSITY FACTORS

Author: I. K. Whitbread
Publisher:
ISBN:
Category : History
Languages : en
Pages : 488

View

Book Description
For five and a half centuries amphorae were used by the ancient Greeks to transport olive oil, wine and other liquid and semi-liquid products. The analysis of this distinctive pot form now provides our main source of information on the lost organic staples of the classical economy. Undiagnostic fragmentary amphorae remains are often the most common ceramic find during excavations in the Mediterranean, and until now a methodology has been lacking for their effective study. Traditionally chronological and regional types have been established by stylistic analysis and the incomplete evidence of administrative stamps. In this book Whitbread surveys this methodology but compares it with the results of his own extensive work on the ceramic petrology of Greek amphorae. His pioneering approach not only reveals new information about Greek trade but also sheds fascinating light on the production of these commonly found vessels.

Author: Jürgen G. Heinrich
Publisher: John Wiley & Sons
ISBN: 3527612777
Category : Technology & Engineering
Languages : en
Pages : 678

View

Book Description
Several ceramic parts have already proven their suitability for serial application in automobile engines in very impressive ways, especially in Japan, the USA and in Germany. However, there is still a lack of economical quality assurance concepts. Recently, a new generation of ceramic components, for the use in energy, transportation and environment systems, has been developed. The efforts are more and more system oriented in this field. The only possibility to manage this complex issue in the future will be interdisciplinary cooperation. Chemists, physicists, material scientists, process engineers, mechanical engineers and engine manufacturers will have to cooperate in a more intensive way than ever before. The R&D activities are still concentrating on gas turbines and reciprocating engines, but also on brakes, bearings, fuel cells, batteries, filters, membranes, sensors and actuators as well as on shaping and cutting tools for low expense machining of ceramic components. This book summarizes the scientific papers of the 7th International Symposium "Ceramic Materials and Components for Engines". Some of the most fascinating new applications of ceramic meterials in energy, transportation and environment systems are presented. The proceedings shall lead to new ideas for interdisciplinary activities in the future.

Author: Marius Rosu
Publisher: John Wiley & Sons
ISBN: 1119103444
Category : Science
Languages : en
Pages : 312

View

Book Description
Presents applied theory and advanced simulation techniques for electric machines and drives This book combines the knowledge of experts from both academia and the software industry to present theories of multiphysics simulation by design for electrical machines, power electronics, and drives. The comprehensive design approach described within supports new applications required by technologies sustaining high drive efficiency. The highlighted framework considers the electric machine at the heart of the entire electric drive. The book also emphasizes the simulation by design concept—a concept that frames the entire highlighted design methodology, which is described and illustrated by various advanced simulation technologies. Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives begins with the basics of electrical machine design and manufacturing tolerances. It also discusses fundamental aspects of the state of the art design process and includes examples from industrial practice. It explains FEM-based analysis techniques for electrical machine design—providing details on how it can be employed in ANSYS Maxwell software. In addition, the book covers advanced magnetic material modeling capabilities employed in numerical computation; thermal analysis; automated optimization for electric machines; and power electronics and drive systems. This valuable resource: Delivers the multi-physics know-how based on practical electric machine design methodologies Provides an extensive overview of electric machine design optimization and its integration with power electronics and drives Incorporates case studies from industrial practice and research and development projects Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives is an incredibly helpful book for design engineers, application and system engineers, and technical professionals. It will also benefit graduate engineering students with a strong interest in electric machines and drives.

Author: P. SESHU
Publisher: PHI Learning Pvt. Ltd.
ISBN: 8120323157
Category : Mathematics
Languages : en
Pages : 340

View

Book Description
Designed for a one-semester course in Finite Element Method, this compact and well-organized text presents FEM as a tool to find approximate solutions to differential equations. This provides the student a better perspective on the technique and its wide range of applications. This approach reflects the current trend as the present-day applications range from structures to biomechanics to electromagnetics, unlike in conventional texts that view FEM primarily as an extension of matrix methods of structural analysis. After an introduction and a review of mathematical preliminaries, the book gives a detailed discussion on FEM as a technique for solving differential equations and variational formulation of FEM. This is followed by a lucid presentation of one-dimensional and two-dimensional finite elements and finite element formulation for dynamics. The book concludes with some case studies that focus on industrial problems and Appendices that include mini-project topics based on near-real-life problems. Postgraduate/Senior undergraduate students of civil, mechanical and aeronautical engineering will find this text extremely useful; it will also appeal to the practising engineers and the teaching community.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309119995
Category : Technology & Engineering
Languages : en
Pages : 152

View

Book Description
Integrated computational materials engineering (ICME) is an emerging discipline that can accelerate materials development and unify design and manufacturing. Developing ICME is a grand challenge that could provide significant economic benefit. To help develop a strategy for development of this new technology area, DOE and DoD asked the NRC to explore its benefits and promises, including the benefits of a comprehensive ICME capability; to establish a strategy for development and maintenance of an ICME infrastructure, and to make recommendations about how best to meet these opportunities. This book provides a vision for ICME, a review of case studies and lessons learned, an analysis of technological barriers, and an evaluation of ways to overcome cultural and organizational challenges to develop the discipline.