DLR THERMEX-B Test Facility for Cryogenic Tank Wall Structures
Petersen, D. and Klein, H. and Schmidt, K. (1998) DLR THERMEX-B Test Facility for Cryogenic Tank Wall Structures. AIAA. AIAA 8th International Space Planes and Hypersonic Systems and Technologies Conference, Norfolk, VA, USA, April 27-30, 1998, pp. 21-30.
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Within FESTIP Structures Technology De-vel-opment work concentrated on cryogenic tank structures as a dominant objective of reusable launch vehicles. The DLR THERMEX-B test facil-ity has been espe-cially improved to carry out tests on panels with high-temperature and cryogenic insulation as represen-tative parts. By the test ap-proach the specimens have been submitted to com-bined thermal and me-chanical stresses to simulate ascent and reentry cycles. The outer side was heated, the inner one was kept cool at cryo-genic temperatures. Mechanical load was simulated by compression. Temperatures, strains and deflections have been measured to be compared with numerical results from finite element analyses. A room tem-pera-ture test, five thermal and 50 mechanical cycles up to a save compres-sion load, a so-called reentry test with time-dependent compression and a tran-sient heating were applied. Finally, a failure test at room temperature to the two specimens was carried out. Cryogenic tank wall structures turned out to be complicated. Thus, sophisticated test procedures are required. The experi-ence obtained by performing combined tests on such complex specimens gave rise to recom-mend improve-ments in the development proce-dure of tank wall structures from design to qualification.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||DLR THERMEX-B Test Facility for Cryogenic Tank Wall Structures|
|Page Range:||pp. 21-30|
|Event Title:||AIAA 8th International Space Planes and Hypersonic Systems and Technologies Conference, Norfolk, VA, USA, April 27-30, 1998, pp. 21-30|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W RP - Raumtransport|
|DLR - Research area:||Space|
|DLR - Program:||W RP - Raumtransport|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Institute of Composite Structures and Adaptive Systems > Institut für Strukturmechanik|
|Deposited By:||Sibylle Wolff|
|Deposited On:||16 Sep 2005|
|Last Modified:||14 Jan 2010 15:31|
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