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Author: FIB – International Federation for Structural Concrete
Publisher: FIB - International Federation for Structural Concrete
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 100
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Book Description
Author: F. S. Rostásy
Publisher:
ISBN:
Category : Building, Iron and steel
Languages : en
Pages : 92
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Book Description
Author: FIB – International Federation for Structural Concrete
Publisher: FIB - International Federation for Structural Concrete
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 100
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Book Description
Author: U. Balu Balachandran
Publisher: Springer Science & Business Media
ISBN: 1475790562
Category : Science
Languages : en
Pages : 1085
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Book Description
"Since 1954 Advances in Cryogenic Engineering has been the archival publication of papers presented at the biennial CEC/ICMC conferences. Advances in Cryogenic Engineering resides throughout the world in the libraries of most institutions that conduct research and development in cryogenic engineering and applied superconductivity. The publication includes invited, unsolicited, and government-sponsored research papers in the research areas of superconductors and structural materials for cryogenic applications. All of the papers published must (1) be presented at the conference, (2) pass the review process, and (3) report previously unpublished theoretical studies, reviews, or measurements of material properties at low temperatures." Victoria A. Bardos, Managing Editor
Author: Hsin-Lun Chen
Publisher:
ISBN:
Category : Testing-machines
Languages : en
Pages : 194
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Book Description
Author: Ralph Michael McClintock
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 202
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Book Description
Author: Jose L. Christian
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 592
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Book Description
The primary objective of this program has been to develop simple laboratory-type tests to evaluate the toughness of high strength sheet alloys and their complex welded joints at cryogenic temperatures. The tests employed for evaluating the toughness of sheet materials included notiched tensile shear tests of individual resistance spot welds, and tensile tests of simple fusion welds. These tests were conducted at 78, -100, -320, and -423 F. These data, as well as data obtained from tensile tests of the base metal, percent martensite determinations, and metallographic examinations of fractured coupons, were correlated with low-cycle, highstress fatigue data obtained on complex welded joints at 78, -320, and -423 F. The most consistant index of toughness was found to be the notched/unnotched tensile ratio. The test data are presented in tabular and in graphical form to air metallurgical and design engineers in the selection of materials for structural applications at cryogenic temperatures. The test data were reduced by statistical methods and analzed. The results of the statistical analysis, which included means, standard deviations, and statistical values are presented and their importance discussed. A description of the test equipment and experimental procedures for tensile and fatigue testing at room and cryogenic temperatures is given. This report also includes conclusions, recommendations for future work, and references.
Author: R.W. Fast
Publisher: Springer Science & Business Media
ISBN: 1461335426
Category : Technology & Engineering
Languages : en
Pages : 904
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Book Description
The Fourth International Cryogenic Materials Conference (ICMC) was held in San Diego, California in conjunction with the Cryogenic Engineer ing Conference (CEC) on August 10-l4, 1981. The synergism produced by conducting the two conferences together remains very strong. In the ap pl1cation of cryogenic technology, materials continue to be a demanding challenge, and sometimes, an obstacle. The association of materials and cryogenic engineers increases their awareness of recent research in each other's fields and influences the course of future research. Many contributed to the success of the 1981 conference. J. W. Morris of the University of California--Berkeley was ICMC Conference Chairman. E. N. C. Dalder of Lawrence Livermore Laboratories was ICMC Structural Program Chairman; D. C. Larbalestier of the University of Wisconsin- Madison, and D. K. Finnemore of Iowa State University were Superconducting Materials Program Chairmen. Local arrangments were expertly coordinated by R. E. Tatro of General Dynamics--San Diego. The CEC Board, especia11y their conference chairman, T. M. Flynn, of the National Bureau of Stan dards, Boulder, contributed very substantia1ly to conference planning and implementation. All of their efforts provided the foundation of the largest CEC/ICMC ever. We thank the Office of Naval Research and the Office of Fusion Energy and Basic Energy Sciences of the Department of Energy for providing needed financial support for the conference. Fina11y, we especially thank M. Stieg, who prepared the papers for the new procedures and format used in this volume.
Author: U. Balu Balachandran
Publisher: Springer Science & Business Media
ISBN: 1461542936
Category : Science
Languages : en
Pages : 467
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Book Description
The 1999 Joint Cryogenic Engineering Conference (CEC) and International Cryogenic Materials Conference (ICMC) were held in Montreal, Quebec, Canada from July 12th to July 16th. The joint conference theme was "Cryogenics into the Next Millennium". The total conference attendance was 797 with participation from 28 countries. As with previous joint CEC and ICMC Conferences, the participants were able to benefit from the joint conference's coverage of cryogenic applications and materials and their interactions. The conference format of plenary, oral and poster presentations, and an extensive commercial exhibit, the largest in CEC-ICMC history, aimed to promote this synergy. The addition of short courses, workshops, and a discussion meeting enabled participants to focus on some of their specialties. The technical tour, organized by Suzanne Gendron, was of Hydro-Quebec's research institute laboratories near Montreal. In keeping with the conference venue the entertainment theme was Jazz, culminating in .the performance of Vic Vogel and his Jazz Big Band at the conference banquet. This 1999 ICMC Conference was chaired by Julian Cave of IREQ - Institut de recherche d'Hydro-Quebec, and the Program Chair and Vice-Chair were Michael Green of the Lawrence Berkeley National Laboratory and Balu Balachandran of the Argonne National Laboratory respectively. We especially appreciate the contributions of both the CEC and ICMC Boards and the conference managers, Centennial Conferences, under the supervision of Paula Pair and Kim Bass, in making this conference a success.
Author: A. F. Clark
Publisher: Springer Science & Business Media
ISBN: 1461575222
Category : Technology & Engineering
Languages : en
Pages : 440
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Book Description
Cryogenics is an emerging technology filled with promises. Many cryogenic systems demand the use of nonmetallics and composites for adequate or increased performance. Thermal and electrical insulations, potting for superconducting magnets' mechanical sta bility, and composite structures appear to be some of the most significant applications. Research on nonmetallics at cryogenic temperatures has not progressed to the degree of research on metals. Nor can room temperature research be extrapolated to low tempera tures; most polymers undergo a phase transformation to the glassy state below room temperature. Research by producers, for the most part, has not been prac tical, because, except for LNG applications, the market for large material sales is not imminent. There are, however, many government stimulated developmental programs. Research on nonmetallics thus is dictated by development project needs, which require studies orien ted toward prototype hardware and specific objectives. As a result, research continuity suffers. Under these conditions, periodic topical conferences on this subject are needed. Industry and uni versity studies must be encouraged. Designers and project research material specialists need to exchange experiences and data. Low temperature-oriented research groups, such as the National Bureau of Standards and the Institute for Technical Physics - Karlsruhe, must contribute by assisting with fundamentals, interpreting proj ect data, and contributing to project programs through their materials research.
Author: T. Horiuchi
Publisher: Springer Science & Business Media
ISBN: 1461337305
Category : Technology & Engineering
Languages : en
Pages : 384
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Book Description
The need for alternate energy sources has led to the develop ment of prototype fusion and MHD reactors. Both possible energy systems in current designs usually require the use of magnetic fields for plasma confinement and concentration. For the creation and maintenance of large 5 to 15 tesla magnetic fields, supercon ducting magnets appear more economical. But the high magnetic fields create large forces, and the complexities of the conceptual reactors create severe space restrictions. The combination of re quirements, plus the desire to keep construction costs at a mini mum, has created a need for stronger structural alloys for service at liquid helium temperature (4 K). The complexity of the required structures requires that these alloys be weldable. Furthermore, since the plasma is influenced by magnetic fields and since magnet ic forces from the use of ferromagnetic materials in many configur ations may be additive, the best structural alloy for most applica tions should be nonmagnetic. These requirements have led to consideration of higher strength austenitic steels. Strength increases at low temperatures are achieved by the addition of nitrogen. The stability of the austenitic structure is retained by adding manganese instead of nickel, which is more expensive. Research to develop these higher strength austenitic steels is in process, primarily in Japan and the United States.
