Design for Creep

Design for Creep PDF Author: R.K. Penny
Publisher: Springer Science & Business Media
ISBN: 9401105618
Category : Technology & Engineering
Languages : en
Pages : 439

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Book Description
Our rationale for the second edition remains the same as for the first edition, which appeared over twenty years ago. This is to offer simplified, useful and easily understood methods for dealing with the creep of components operating under conditions met in practice. When the first edition was written, we could not claim that the methods which were introduced were well-tried. They were somewhat conjectural, although firmly based, but not sufficiently well devel oped. Since that time, the Reference Stress Methods (RSM) introduced in the book have received much scrutiny and development. The best recognition we could have of the original methods is the fact that they are now firmly embedded in codes of practice. Hopefully, we have now gone a long way towards achieving our original objectives. There are major additions to this second edition which should help to justify our claims. These include further clarification regarding Reference Stress Methods in Chapter 4. There are also new topics which depend on RSM in varying degrees: • Creep fracture is covered in Chapter 7, where methods for assessing creep crack initiation and crack growth are fully described. This chapter starts with a review of the basic concepts of fracture mechanics and follows with useful, approximate methods, compatible with the needs of design for creep and the availability of standard data. • Creep/fatigue interactions and environmental effects appear in Chapter 8.

Design for Creep

Design for Creep PDF Author: R.K. Penny
Publisher: Springer Science & Business Media
ISBN: 9401105618
Category : Technology & Engineering
Languages : en
Pages : 439

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Book Description
Our rationale for the second edition remains the same as for the first edition, which appeared over twenty years ago. This is to offer simplified, useful and easily understood methods for dealing with the creep of components operating under conditions met in practice. When the first edition was written, we could not claim that the methods which were introduced were well-tried. They were somewhat conjectural, although firmly based, but not sufficiently well devel oped. Since that time, the Reference Stress Methods (RSM) introduced in the book have received much scrutiny and development. The best recognition we could have of the original methods is the fact that they are now firmly embedded in codes of practice. Hopefully, we have now gone a long way towards achieving our original objectives. There are major additions to this second edition which should help to justify our claims. These include further clarification regarding Reference Stress Methods in Chapter 4. There are also new topics which depend on RSM in varying degrees: • Creep fracture is covered in Chapter 7, where methods for assessing creep crack initiation and crack growth are fully described. This chapter starts with a review of the basic concepts of fracture mechanics and follows with useful, approximate methods, compatible with the needs of design for creep and the availability of standard data. • Creep/fatigue interactions and environmental effects appear in Chapter 8.

Stress Analysis for Creep

Stress Analysis for Creep PDF Author: J.T. Boyle
Publisher: Elsevier
ISBN: 1483101606
Category : Technology & Engineering
Languages : en
Pages : 296

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Book Description
Stress Analysis for Creep focuses on methods on creep analysis. The book first ponders on the occurrence of creep in mechanical engineering components, including background to stress analysis for creep and general-purpose computer programs for creep analysis. The text presents a phenomenological description of creep. The phenomenon of creep, physical mechanisms of creep, convenient uniaxial constitutive relationships, and creep rupture are described. The book also explains simple component behavior, creep under multiaxial states of stress, and stress analysis for steady creep. The text focuses on reference stress methods in steady creep. Reference stresses for combined loading with a power law; non-isothermal power-law creep; reference temperatures; and approximate reference stress methods are elaborated. The text also focuses on stress analysis for transient creep; approximate solution of transient creep problems; and creep buckling and rupture. The text highlights the design for creep, including material data requirements and constitutive modeling for design; verification and qualification of stress analysis; and design methodology. The book is a good source of data for readers wanting to study creep analysis.

IUTAM Symposium on Creep in Structures

IUTAM Symposium on Creep in Structures PDF Author: S. Murakami
Publisher: Springer Science & Business Media
ISBN: 940159628X
Category : Science
Languages : en
Pages : 541

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Book Description
These proceedings contain 48 innovative papers consolidating the development of creep research since 1990 and discussing the new horizons in this fundamental field of applied mechanics in the coming century. This volume is useful for researchers and graduate course students in the relevant fields.

Techniques for Multiaxial Creep Testing

Techniques for Multiaxial Creep Testing PDF Author: D. J. Gooch
Publisher: Springer Science & Business Media
ISBN: 9400934157
Category : Science
Languages : en
Pages : 346

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Book Description
The design and assessment of modern high temperature plant demands an understanding of the creep and rupture behaviour of materials under multi axial stress states. Examples include thread roots in steam turbine casing bolts, branch connections in nuclear pressure vessels and blade root fixings in gas or steam turbine rotors. At one extreme the simple notch weakening/notch strengthening characterization of the material by circumferentially vee-notched uniaxial rupture tests, as specified in many national standards, may be sufficient. These were originally intended to model thread roots and their conservatism is such that they frequently are considered adequate for design purposes. At the other extreme full size or model component tests may be employed to determine the safety margins built into design codes. This latter approach is most commonly used for internally pressurized components, particularly where welds are involved. However, such tests are extremely expensive and the use of modern stress analysis techniques combined with a detailed knowledge of multiaxial properties offers a more economic alternative. Design codes, by their nature, must ensure conservatism and are based on a material's minimum specified properties. In the case of high temperature components the extension of life beyond the nominal design figure, say from 100000 to 200000 h, offers very significant economic benefits. However, this may require a more detailed understanding of the multiaxial behaviour of a specific material than was available at the design stage.

Reference Stress Methods

Reference Stress Methods PDF Author: Ian Goodall
Publisher: John Wiley & Sons
ISBN:
Category : House & Home
Languages : en
Pages : 200

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Book Description
Nine papers developed from presentations to a November 2000 seminar at an undisclosed location explain how reference stress methods and other simplified methods can offer many attractions in the design process despite the rapid developments and popularity of finite element analysis. In sections on determining the basic parameters, extending the approach to weldments, and applications, they discuss such aspects as computational methods for limit states and shakedown; the high- temperature creep rupture of low-alloy, ferritic steel, butt-welded pipes subjected to combined internal pressure and end loadings; and buckling calculations. Distributed in the US by ASME. Annotation copyrighted by Book News, Inc., Portland, OR

Creep Analysis

Creep Analysis PDF Author: Harry Kraus
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 280

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Book Description


Applied Stress Analysis

Applied Stress Analysis PDF Author: T.H. Hyde
Publisher: Springer Science & Business Media
ISBN: 9400907796
Category : Technology & Engineering
Languages : en
Pages : 744

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Book Description
This volume records the proceedings of an international conference organised as a tribute to the contribution made by Professor H. Fessler over the whole of his pro fessionallife, in the field of applied stress analysis. The conference, held at the Univer sity of Nottingham on 30 and 31 August 1990, was timed to coincide with the date of his formal retirement from the post of Professor of Experimental Stress Analysis in the University. The idea grew from discussions between some of Professor Fessler's academic associates from Nottingham and elsewhere. An organising committee was set up, and it was decided to invite contributions to the conference in the form of review papers and original research papers in the field of experimental, theoretical and computational stress analysis. The size of the response, both in papers submitted and in attendance at the conference, indicates that the idea proved attractive to many of his peers, former associates and research students. A bound copy of the volume is to be presented to Professor Fessler at the conference dinner on 30 August 1990.

Advanced Materials Modelling for Structures

Advanced Materials Modelling for Structures PDF Author: Holm Altenbach
Publisher: Springer Science & Business Media
ISBN: 3642351670
Category : Technology & Engineering
Languages : en
Pages : 365

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Book Description
This volume presents the major outcome of the IUTAM symposium on “Advanced Materials Modeling for Structures”. It discusses advances in high temperature materials research, and also to provides a discussion the new horizon of this fundamental field of applied mechanics. The topics cover a large domain of research but place a particular emphasis on multiscale approaches at several length scales applied to non linear and heterogeneous materials. Discussions of new approaches are emphasised from various related disciplines, including metal physics, micromechanics, mathematical and computational mechanics.

Creep in Structures

Creep in Structures PDF Author: A.R.S. Ponter
Publisher: Springer Science & Business Media
ISBN: 3642815987
Category : Science
Languages : en
Pages : 630

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Book Description
The Third IUTAM Symposium on Creep in Structures was held at Leicester University in September 1980 thereby continuing the tradition of a ten yearly review of progress in structural creep initiated by the previous symposia held at Stanford University in 1960 and Chalmers University in 1970. The thirty eight papers and their discussions cont ained in this volume testify to the vigour of research into the creep of structures at the present time. During the last ten years a gradual change of emphasis has occurred in creep research from studies of deformation and stability towards the description of continuum damage and creep crack propagation. At the same time design techniques have developed based upon reference stress techniques and bounding theorems, and a continued interest has been maintained in the development of constitutive equations and in stability studies. All these developments are reflected in the compos ition of the papers in the volume and in the discussions and reviews.

Analysis of ASME Boiler, Pressure Vessel, and Nuclear Components in the Creep Range

Analysis of ASME Boiler, Pressure Vessel, and Nuclear Components in the Creep Range PDF Author: Maan H. Jawad
Publisher: John Wiley & Sons
ISBN: 1119679486
Category : Technology & Engineering
Languages : en
Pages : 404

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Book Description
Analysis of ASME Boiler, Pressure Vessel, and Nuclear Components in the Creep Range Second Edition The latest edition of the leading resource on elevated temperature design In the newly revised Second Edition of Analysis of ASME Boiler, Pressure Vessel, and Nuclear Components in the Creep Range, a team of distinguished engineers delivers an authoritative introduction to the principles of design at elevated temperatures. The authors draw on over 50 years of experience, explaining the methodology for accomplishing a safe and economical design for boiler and pressure vessel components operating at high temperatures. The text includes extensive references, offering the reader the opportunity to further their understanding of the subject. In this latest edition, each chapter has been updated and two brand-new chapters added—the first is Creep Analysis Using the Remaining Life Method, and the second is Requirements for Nuclear Components. Numerous examples are included to illustrate the practical application of the presented design and analysis methods. It also offers: A thorough introduction to creep-fatigue analysis of pressure vessel components using the concept of load-controlled and strain-deformation controlled limits An introduction to the creep requirements in API 579/ASME FFS-1 “Remaining Life Method” A summary of creep-fatigue analysis requirements in nuclear components Detailed procedure for designing cylindrical and spherical components of boilers and pressure vessels due to axial and external pressure in the creep regime A section on using finite element analysis to approximate fatigue in structural members in tension and bending Perfect for mechanical engineers and researchers working in mechanical engineering, Analysis of ASME Boiler, Pressure Vessel, and Nuclear Components in the Creep Range will also earn a place in the libraries of graduate students studying mechanical engineering, technical staff in industry, and industry analysts and researchers.