Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 182
Book Description
NASA Langley Scientific and Technical Information Output: 1999
Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 182
Book Description
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 182
Book Description
NASA Langley Scientific and Technical Information Output 2000
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 162
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 162
Book Description
NASA Langley Scientific and Technical Information Output-2001
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
Book Description
Lfm2000
Author:
Publisher:
ISBN:
Category : Automatic control
Languages : en
Pages : 212
Book Description
Publisher:
ISBN:
Category : Automatic control
Languages : en
Pages : 212
Book Description
Evaluating the effectiveness of the 2000-2001 NASA "Why?" Files Program
Author:
Publisher: DIANE Publishing
ISBN: 1428925759
Category :
Languages : en
Pages : 66
Book Description
Publisher: DIANE Publishing
ISBN: 1428925759
Category :
Languages : en
Pages : 66
Book Description
Effects of Interface Coating and Nitride Enhancing Additive on Properites of Hi-Nicalon SiC Fiber Reinforced Reaction-bonded Silicon Nitride Composites
Author: Ramakrishna T. Bhatt
Publisher:
ISBN:
Category : Additives
Languages : en
Pages : 24
Book Description
Strong and tough Hi-Nicalon SiC fiber reinforced reaction-bonded silicon nitride matirix composites (SiC/RBSN) have been fabricated by the fiber lay-up approach. Commercially available uncoated and PBN, PBN/Si-rich PBN, and BN/SiC coated SiC Hi-Nicalon fiber tows were used as reinforcement. The composites contained ~24 vol % of aligned 14 ♯m diameter SiC fibers in a porous RBSN matrix. Both one- and two-dimensional composites were characterized. The effects of interface coating composition, and the nitridation enhancing additive, NiO, on the room temperature physical, tensile, and interfacial shear strenght properties of SiC/RBSN matrix composites were evaluated. Results indicate that all three coated fibers, the thickness of the coating decreased from the outer periphery to the interior of the tows, and that from 10 to 30 percent of the fibers were not covered with the interface coating.
Publisher:
ISBN:
Category : Additives
Languages : en
Pages : 24
Book Description
Strong and tough Hi-Nicalon SiC fiber reinforced reaction-bonded silicon nitride matirix composites (SiC/RBSN) have been fabricated by the fiber lay-up approach. Commercially available uncoated and PBN, PBN/Si-rich PBN, and BN/SiC coated SiC Hi-Nicalon fiber tows were used as reinforcement. The composites contained ~24 vol % of aligned 14 ♯m diameter SiC fibers in a porous RBSN matrix. Both one- and two-dimensional composites were characterized. The effects of interface coating composition, and the nitridation enhancing additive, NiO, on the room temperature physical, tensile, and interfacial shear strenght properties of SiC/RBSN matrix composites were evaluated. Results indicate that all three coated fibers, the thickness of the coating decreased from the outer periphery to the interior of the tows, and that from 10 to 30 percent of the fibers were not covered with the interface coating.
Ice Accretions and Icing Effects for Modern Airfoils
Author: Harold E. Addy
Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 292
Book Description
Icing tests were conducted to document ice shapes formed on three different two-dimensional airfoils and to study the effects of the accreted ice on aerodynamic performance. The models tested were representative of airfoil designs in current use for each of the commercial transport, business jet, and general aviation categories of aircraft. The models were subjected to a range of icing conditions in an icing wind tunnel. The conditions were selected primarily from the Federal Aviation Administration's Federal Aviation Regulations 25 Appendix C atmospheric icing conditions. A few large droplet icing conditions were included. To verify the aerodynamic performance measurements, molds were made of selected ice shapes formed in the icing tunnel. Castings of the ice were made from the molds and placed on a model in a dry, low-turbulence wind tunnel where precision aerodynamic performance measurements were made. Documentation of all the ice shapes and the aerodynamic performance measurements made during the icing tunnel tests is included in this report. Results from the dry, low-turbulence wind tunnel tests are also presented.
Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 292
Book Description
Icing tests were conducted to document ice shapes formed on three different two-dimensional airfoils and to study the effects of the accreted ice on aerodynamic performance. The models tested were representative of airfoil designs in current use for each of the commercial transport, business jet, and general aviation categories of aircraft. The models were subjected to a range of icing conditions in an icing wind tunnel. The conditions were selected primarily from the Federal Aviation Administration's Federal Aviation Regulations 25 Appendix C atmospheric icing conditions. A few large droplet icing conditions were included. To verify the aerodynamic performance measurements, molds were made of selected ice shapes formed in the icing tunnel. Castings of the ice were made from the molds and placed on a model in a dry, low-turbulence wind tunnel where precision aerodynamic performance measurements were made. Documentation of all the ice shapes and the aerodynamic performance measurements made during the icing tunnel tests is included in this report. Results from the dry, low-turbulence wind tunnel tests are also presented.
Implementation of Laminate Theory Into Strain Rate Dependent Micromechanics Analysis of Polymer Matrix Composites
Author: Robert K. Goldberg
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
Evaluation of X-38 Crew Return Vehicle Input Control Devices in a Microgravity Environment
Author: Kirsten Welge
Publisher:
ISBN:
Category : KC-135 (Tanker aircraft)
Languages : en
Pages : 50
Book Description
Publisher:
ISBN:
Category : KC-135 (Tanker aircraft)
Languages : en
Pages : 50
Book Description
Overview on In-Space Internet Node Testbed (ISINT)
Author: Alan M. Richard
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
Book Description