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
Filter
  • Other Sources  (193)
  • Composite Materials  (191)
  • Electronic structure and strongly correlated systems
  • Engineering
  • General Chemistry
  • Numerical Methods and Modeling
  • Organic Chemistry
  • Physics
  • 2015-2019
  • 1995-1999  (193)
  • 1905-1909
  • 1997  (109)
  • 1996  (84)
Collection
Source
Keywords
Years
  • 2015-2019
  • 1995-1999  (193)
  • 1905-1909
Year
  • 1
    facet.materialart.
    Unknown
    Stress fields generating ring faults in volcanoes (1997)
    In:  Geophys. Res. Lett., London, Pergamon, vol. 24, no. 13, pp. 1559-1562, pp. B05401, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1997
    Keywords: Volcanology ; Stress ; Iceland ; 8145 ; Tectonophysics ; Physics ; of ; magma ; and ; magma ; bodies ; 8414 ; Volcanology ; Eruption ; mechanisms ; GRL
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 2
    facet.materialart.
    Unknown
    Readjustment of the Krafla spreading segment to crustal rifting measured by satellite radar interferometry (1997)
    In:  Geophys. Res. Lett., Dordrecht, National Academy of Sciences of the USA, vol. 24, no. 15, pp. 1843-1846, pp. TC5003, (ISSN: 1340-4202)
    Details
    Publication Date: 1997
    Keywords: Iceland ; SAR ; InSAR ; Plate tectonics ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; 1209 ; Geodesy ; Gravimetry, Gravitation ; 8145 ; Tectonophysics ; Physics ; of ; magma ; and ; magma ; bodies ; 8150 ; Plate ; boundary ; general ; Massonet ; (3040) ; 3035 ; Marine ; geology ; and ; geophysics ; Midocean ; ridge ; processes ; Volcanology ; GRL
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 3
    facet.materialart.
    Unknown
    The Yeh-Stratton Criterion for Stress Concentrations on Fiber -Reinforced Composite Materials (1996)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: The Yeh-Stratton criterion developed from a yielding criterion is modified to a generalized failure criterion and applied to fiber-reinforced composites with a central crack or a circular cutout under tensile loadings. The purpose of a material failure criterion is to establish a theoretical margin of safety and to be validated by experiments. It is necessary to obtain the crack tip stress field before a failure criterion of composite materials is applied. However, the crack tip stress field is complicated since there are numerous factors that influence the crack tip stress distribution. The understanding of the factors that contribute to crack tip stress field is of critical importance in analyzing composite laminates.
    Keywords: Composite Materials
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    Development of a Higher Order Laminate Theory for Modeling Composites with Induced Strain Actuators (1996)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: A refined higher order plate theory is developed to investigate the actuation mechanism of piezoelectric materials surface bonded or embedded in composite laminates. The current analysis uses a displacement field which accurately accounts for transverse shear stresses. Some higher order terms are identified by using the conditions that shear stresses vanish at all free surfaces. Therefore, all boundary conditions for displacements and stresses are satisfied in the present theory. The analysis is implemented using the finite element method which provides a convenient means to construct a numerical solution due to the discrete nature of the actuators. The higher order theory is computationally less expensive than a full three dimensional analysis. The theory is also shown to agree well with published experimental results. Numerical examples are presented for composite plates with thicknesses ranging from thin to very thick.
    Keywords: Composite Materials
    Type: Proceedings of the 4th Annual Workshop: Advances in Smart Materials for Aerospace Applications; 319-323; NASA-CP-10185
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    Designing with Brittle Matrix Composites (1996)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: This paper presents a comparison of the material and manufacturing costs, corrosion resistance, durability, knowledge base, and design/data base among polymers, metals and ceramics. Ceramic matrix composites are focused on for their design applications and performance prediction.
    Keywords: Composite Materials
    Type: National Educators' Workshop: Update 95. Standard Experiments in Engineering Materials Science and Technology; 247-270; NASA-CP-3330
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 6
    facet.materialart.
    Unknown
    Layerwise Mechanics and Finite Elements for Smart Composite Structures with Piezoelectric Actuators and Sensors (1996)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: Recent developments on layerwise mechanics for the analysis of composite laminates and structures with piezoelectric actuators and sensors are reviewed. The mechanics implement layerwise representations of displacements and electric potential, and can model both the global and local electromechanical response of smart composite structures. The corresponding finite-element implementations for the static and dynamic analysis of smart piezoelectric composite structures are also summarized. Select application illustrate the accuracy, robustness and capability of the developed mechanics to capture the global and local dynamic response of thin and/or thick laminated piezoelectric plates.
    Keywords: Composite Materials
    Type: Proceedings of the 4th Annual Workshop: Advances in Smart Materials for Aerospace Applications; 309-313; NASA-CP-10185
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unknown
    Titanium Layer Influence on the Strength of a Hybrid Titanium Composite Laminate (1997)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: An experimental study was undertaken to investigate the mechanical response of four hybrid titanium composite laminate (HTCL) systems, each prepared using a graphite fiber reinforced thermoplastic polyimide as the adhesive in a unidirectional prepreg. Two of the four HTCL systems were fabricated with the titanium Ti-15-3 alloy, while the other two systems were fabricated with the titanium Timetal Beta-21S alloy. Each HTCL system consisted of either three plies or four plies of the titanium alloy. Systems with only three plies of titanium had plies measuring 10 mils thick, whereas systems consisting of four plies of titanium had plies measuring 5 mils thick. The improvement in mechanical properties achieved by comparing the uniaxial tensile results of static strength at room temperature. Results included stress-strain curves, ultimate strength, strain-to-failure, initial modulus of the HTCL's, and the description of the observed modes of failure.
    Keywords: Composite Materials
    Type: The First National Student Conference: NASA University Research Centers at Minority Institutions; 307-310; NASA-CR-205049
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unknown
    Preliminary Evaluation of Low-Density, Low-Conductivity PAN Ablative Composites (1997)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: In this study, the mechanical response of four low-density, low conductivity polyacrylonitrile (PAN) based carbon fiber reinforced phenolic resin composites was investigated, each prepared with ceramic microballoon fillers. Two of the four PAN composite systems were fabricated with 20% microballoon filler content, while the other two systems were fabricated with 15% microballoon content. Composites with 20% microballoon content were cured at pressures of 1.65 MPa and 0.35 MPa, whereas systems with 15% microballoon content were cured at 1.65 MPa and 0.69 MPa. The improvement in mechanical properties achieved by the influences of the microballoon content and the cure pressure was assessed by comparing the uniaxial tensile results of static strength of the composite at room temperature. Results included stress-strain curves, ultimate strength, strain-to-failure, initial modulus of the PAN composite, and the description of the observed modes of failure.
    Keywords: Composite Materials
    Type: The First National Student Conference: NASA University Research Centers at Minority Institutions; 311-314; NASA-CR-205049
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unknown
    Prediction of Degraded Strength in Composite Laminates with Matrix Cracks (1997)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: Composite laminated materials are becoming increasingly important for aerospace engineering. As the aerospace industry moves in this direction, it will be critical to be able to predict how these materials fail. While much research has been done in this area, both theoretical and experimental, the field is still new enough that most computer aided design platforms have not yet incorporated damage prediction for laminate materials. There is a gap between the level of understanding evident in the literature and what design tools are readily available to engineers. The work reported herein is a small step toward filling that gap for NASA engineers. A computer program, LAMDGRAD, has been written which predicts how some of the materials properties change as damage is incurred. Specifically, the program calculates the Young's moduli E(sub x) and E(sub y) the Poisson's ratio v(sub xy) and the shear modulus G(sub xy) as cracks developing the composite matrix. The changes in the Young's moduli are reported both as a function of mean crack separation and in the form of a stress-versus-strain curve. The program also calculates the critical strain for delamination growth and predicts the strain at which a quarter-inch diameter delaminated area will buckle. The stress-versus-strain predictions have been compared to experiment for two test structures, and good agreement has been found in each case.
    Keywords: Composite Materials
    Type: National Aeronautics and Space Administration (NASA)/American Society for Engineering Education (ASEE) Summer Faculty Fellowship Program: 1996; Volume 2; NASA-CR-202008-Vol-2
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unknown
    Computerized Testing of Woven Composite Fibers (1996)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: The student will utilize the computerized testing center to perform tensile testing of the various woven composite fibers. They will interpret the graphs to provide more advanced testing results and data for stress, strain, and modulus of elasticity.
    Keywords: Composite Materials
    Type: National Educators' Workshop: Update 95. Standard Experiments in Engineering Materials Science and Technology; 337-351; NASA-CP-3330
    Format: text
    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...