Author: J. A. HenkenerPublisher:
ISBN:
Category : Beryllium
Languages : en
Pages : 64
Book Description
The Mechanical Behavior of Cross-rolled Beryllium Sheet
Author: J. A. HenkenerPublisher:
ISBN:
Category : Beryllium
Languages : en
Pages : 64
Book Description
The Mechanical Behavior of Cross-Rolled Beryllium Sheet
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781730892943
Category : Science
Languages : en
Pages : 64
Book Description
In response to the failure of a conical section of the Insat C satellite during certification testing, the use of beryllium for payload structures, particularly in sheet product form, is being reevaluated. A test program was initiated to study the tensile, shear, and out-of-plane failure modes of beryllium cross-rolled sheet and to apply data to the development of an appropriate failure criterion. Tensile test results indicated that sanding the surface of beryllium sheet has no significant effect on yield strength but can produce a profound reduction in ultimate strength and results obtained by finite element analysis. Critical examination of these test results may contribute to the modification of a JSC policy for the use of beryllium in orbiter and payload structures. Henkener, J. A. and Spiker, I. K. and Castner, W. L. Johnson Space Center...
Summary of Beryllium Research and Develpment Programs
Author: A. N. AshurstPublisher:
ISBN:
Category : Beryllium
Languages : en
Pages : 56
Book Description
Test Methods for Mechanical Properties of Anisotropic Materials (Beryllium Sheet)
Author: Raymond W. Fenn (Jr)Publisher:
ISBN:
Category : Anisotropy
Languages : en
Pages : 168
Book Description
Test techniques were developed for the determination of short-transverse tensile properties, Poisson's ratios, and shear moduli in anisotropic sheet. Cross-rolled 0.077-in. thick S-200 Beryllium sheet was tested to determine Young's moduli, Poisson's ratios, shear moduli, uniaxial tensile properties in three directions, biaxial tensile properties, three- and four-pint bend characteristics, fracture toughness, effect of anisotropy on fatigue strength, microstructural characteristics, basal and prism pole figures.
Structural Response of Beryllium Sheet Produced by Three Fabrication Methods
Author: C. J. GiemzaPublisher:
ISBN:
Category : Beryllium
Languages : en
Pages : 62
Book Description
Hot-pressed, hot-upset and hot cross-rolled Be sheets were examined to assess their differences and advantages from a structural design viewpoint. Tension, notch tension, compression, bend ductility and box-beam tests, with the main emphasis on factors which tend to embrittle Be, were conducted. The results showed that hot cross-rolled Be sheet exhibited both high strength and high elongation in tensile tests but was relatively brittle when, as in bending, the stress was complex. Hot-pressed Be sheet, which was low in tensile strength and elongation, demonstrated an excellent capacity for accommodating complex stresses in bending without fracture. The hot-upset Be sheet exhibited the best characteristics possessed by both hot-pressed and hot cross-rolled Be, though to a lesser degree than the optimum of each. The differences in mechanical behavior among the 3 groups were apparently a function of the degree of preferred orientation. However, the amounts of impurity elements which were reported could have contributed significantly to the embrittlement of the hot- pressed and hot cross-rolled Be sheet.
Technical Publications Announcements with Indexes
Author: United States. National Aeronautics and Space AdministrationPublisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 588
Book Description
Scientific and Technical Aerospace Reports
Author: Abstracts of AF Materials Laboratory Reports
Author: Air Force Materials Laboratory (U.S.)Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 270
Book Description
Technical reports published by the Air Force Materials Laboratory during the period 1 January 1967-31 December 1967 are abstracted herein and indexed by branches of the laboratory, technical subject matter, investigator, project monitor and contractor. Reports on research conducted by the Air Force Materials Laboratory personnel as well as that conducted on contract are included.
A Review of the Air Force Materials Research and Development Program
Author: Junie J. BanksPublisher:
ISBN:
Category : Materials
Languages : en
Pages : 214
Book Description
These reports cover basic and applied research in the materials area being conducted by the Metals and Ceramics, Nonmetallic Materials, Physics, Manufacturing Technology and Applications Laboratories of the Directorate of Materials and Processes.
Beryllium Wrought Products
Author: G. E. MeyerPublisher:
ISBN:
Category : Beryllium
Languages : en
Pages : 62
Book Description
The report is a comprehensive guide to the manufacture of beryllium wrought products by forging, extrusion, wire-drawing, rolling, or forming. The various specific processes available for each of these operations are described in detail and compared. The economics of each of the operations is discussed. An introductory section of the report discusses the commercial forms of beryllium and beryllium alloys that are available, and provides a brief description of the phenomenon of texturing in beryllium. (Author).