ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Combining materials and structures research on composite materials. (1965)
    In:  Other Sources
    Details
    Publication Date: 2019-01-25
    Description: Materials structures research within framework of mechanical constitutive equation, reviewing fiber reinforced composites from microscopic to macroscopic viewpoints
    Keywords: STRUCTURAL MECHANICS
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    A finite element overlay technique for modeling pinned composite joints (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A finite element technique using overlaid plane stress elements is presented for modeling a pinned composite joint. The technique allows for discrete modeling of the pin and web regions of the joint in a two-dimensional (2-D) finite element analysis. Thus, predictive capability is substantially increased without the added complexity of a three-dimensional (3-D) analysis. The overlay technique requires a thorough evaluation of the model constraints between the joint components. Bearing panels are used to account for a reduced compressive modulus under bearing loads. Application of the plane stress overlay technique to the Filament Wound Case (FWC) Program is discussed. The experimental approach to determine bearing panel moduli using a double lap shear test is detailed, and finite element results are correlated with full-scale FWC joint test results.
    Keywords: STRUCTURAL MECHANICS
    Type: AIAA PAPER 86-1420
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unknown
    Vibration behavior of fuel-element vibration suppressors for the advanced power reactor (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Preliminary shock and vibration tests were performed on vibration suppressors for the advanced power reactor for space application. These suppressors position the fuel pellets in a pin type fuel element. The test determined the effect of varying axial clearance on the behavior of the suppressors when subjected to shock and vibratory loading. The full-size suppressor was tested in a mockup model of fuel and clad which required scaling of test conditions. The test data were correlated with theoretical predictions for suppressor failure. Good agreement was obtained. The maximum difference with damping neglected was about 30 percent. Neglecting damping would result in a conservative design.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-TM-X-2920 , E-6816
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    Analyses of composite structures (1966)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Stiffness and strength analyses on composite cross-ply and helical wound cylinders and flat laminate structures
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-620
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    Longitudinal shear loading of a unidirectional composite. (1967)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Fiber reinforced composite material behavior examined from shear loading tests, using finite difference analysis for representative PDEs
    Keywords: STRUCTURAL MECHANICS
    Type: /ANNUAL SYMPOSIUM ON HIGH PERFORMANCE COMPOSITES MATERIALS
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 6
    facet.materialart.
    Unknown
    Study of vibration induced stresses in design of fuel-element support assembly for tungsten water-moderated nuclear reactor (1968)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Vibration tests of concentric tube fuel element support structure for Tungsten Water Moderated Reactor
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-TM-X-1608
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unknown
    Transverse normal loading of a unidirectional composite. (1967)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Transverse normal loading of doubly periodic unidirectional elastic fiber reinforced infinite elastic matrix
    Keywords: STRUCTURAL MECHANICS
    Type: JOURNAL OF COMPOSITE MATERIALS
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unknown
    Further development of the losipescu shear test method (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Recent activities by the present investigators to further develop the losipescu-shear-test method for use with composite materials are summarized. Finite-element analyses used to predict the stress states in the specimen are described, with particular emphasis on how they are influenced by the specific test-fixture configuration used. These same analytical tools were also used to predict the influence of specimen notch depth, notch angle, and notch-root radius. The result was a redesign of the original Wyoming version of the losipescu-shear-test fixture, and the establishment of guidelines for preparing specimens. These are discussed in some detail. Many references to available literature are included. An attempt has been made to put the work performed to date into perspective, to aid the potential user of the losipescu-shear-test method in establishing proper test procedures.
    Keywords: STRUCTURAL MECHANICS
    Type: Experimental Mechanics (ISSN 0014-4851); 27; 113-119
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unknown
    Verification and application of the Iosipescu shear test method (1984)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Finite element models were used to study the effects of notch angle variations on the stress state within an Iosipescu shear test speciment. These analytical results were also studied to determine the feasibility of using strain gage rosettes and a modified extensometer to measure shear strains in this test specimen. Analytical results indicate that notch angle variations produced only small differences in simulated shear properties. Both strain gage rosettes and the modified extensometer were shown to be feasible shear strain transducers for the test method. The Iosipoescu shear test fixture was redesigned to incorporate several improvements. These improvements include accommodation of a 50 percent larger specimen for easier measurement of shear train, a clamping mechanism to relax strict tolerances on specimen width, and a self contained alignment tool for use during specimen installation. A set of in-plane and interlaminar shear properties were measured for three graphite fabric/epoxy composites of T300/934 composite material. The three weave patterns were Oxford, 5-harness satin, and 8-harness satin.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-174346 , NAS 1.26:174346 , UWME-DR-401-103-1
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...