Author: William E. HowellPublisher:
ISBN:
Category : Ablative materials
Languages : en
Pages : 36
Book Description
Ablative Performance of Various Low-density Elastomeric Composites
Author: William E. HowellPublisher:
ISBN:
Category : Ablative materials
Languages : en
Pages : 36
Book Description
NASA Technical Note
Author: Scientific and Technical Aerospace Reports
Author: Flight and Ground Tests of a Very-low-density Elastomeric Ablative Material
Author: George C. OlsenPublisher:
ISBN:
Category : Ablation (Aerothermodynamics)
Languages : en
Pages : 44
Book Description
A very low density ablative material, a silicone-phenolic composite, was flight tested on a recoverable spacecraft launched by a Pacemaker vehicle system; and, in addition, it was tested in an arc heated wind tunnel at three conditions which encompassed most of the reentry heating conditions of the flight tests. The material was composed, by weight, of 71 percent phenolic spheres, 22.8 percent silicone resin, 2.2 percent catalyst, and 4 percent silica fibers. The tests were conducted to evaluate the ablator performance in both arc tunnel and flight tests and to determine the predictability of the albator performance by using computed results from an existing one-dimensional numerical analysis. The flight tested ablator experienced only moderate surface recession and retained a smooth surface except for isolated areas where the char was completely removed, probably following reentry and prior to or during recovery. Analytical results show good agreement between arc tunnel and flight test results. The thermophysical properties used in the analysis are tabulated.
Applied Mechanics Reviews
Author: Monthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1290
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Polymer Science & Technology
Author: Advances in Structural Composites; 12th National Symposium and Exhibit
Author: Society of Aerospace Material and Process EngineersPublisher:
ISBN:
Category : Ceramic-matrix composites
Languages : en
Pages : 900
Book Description
Composite Materials
Author: A.T. Di BenedettoPublisher: Elsevier
ISBN: 0444600795
Category : Technology & Engineering
Languages : en
Pages : 293
Book Description
The contributions in this volume bring together the experience of specialists on the highly complex technology required for manufacturing composite structural parts, presenting fundamental descriptions of the processing and properties of these advanced materials.The 34 papers give a thorough overview on recent advances in this field. The contributions have been collected in two general categories: composites based on organic matrices; and composites based on inorganic matrices. In each group properties and manufacturing technologies are analyzed together with long term durability and the special applications for such advanced materials.
Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1388
Book Description