Lower thrust structure S/N 0000001 static structural test evaluation report Page: 9 of 53
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This document describes the static limit load test of an E-engine NERVA
Lower Thrust Structure (LTS) and includes experimental findings and conclusions
derived. The static test program was conducted in the Structural Test Labora-
tory at the Aerojet-General Corporation (AGC) Sacramento Plant beginning
20 June 1963 and terminating 27 August 1963.
Instrumentation and testing were performed in accordance with AGC Report
No. 748N-TP.(i) The test program consisted of subjecting the LTS to 12 static
load combinations which simulated maximum boost and operational loads. (2)
Testing was conducted in two Phases: during Phase 1, a stresscoat was utilized
along with strain and deflection gages to establish the location of stress con-
centrations and the requirement for additional instrumentation for subsequent
load combinations; during Phase 2, data for all strain gages and deflection
transducers was recorded. The LTS load combinations were applied incrementally
to 100% limit load.
(1) Report No. 748N-TP, "Test Specifications for the Static Structural Test
of the NERVA Lower Thrust Structure", 17 June 1963.
(2) AGC Report No. 9443-62-16, "NERVA TCA Structural Loads Document" was
used as the basis for the test loads.
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Lower thrust structure S/N 0000001 static structural test evaluation report, report, April 1, 1965; Sacramento, California. (https://digital.library.unt.edu/ark:/67531/metadc1024652/m1/9/: accessed March 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.