Accession Number : AD0284188

Title :   MANUFACTURING METHODS FOR HOT STRUCTURES.

Corporate Author : BOEING CO SEATTLE WASH

Personal Author(s) : CLAUS,J. ; SEIP,W.

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : Environmental life tests were conducted on a 10-5-ft-long 'Hot Structures' model component. The model was fabricated from the superalloy material Rene' 41 except for the lower surface skin panels which utilized HS-25. The model successfully sustained the test conditions of load and maximum external surface temperatures to 2000 F. The first test consisted of applying loads to the model at room temperature. Strain gage data converted to stress was recorded. Deflections at 20 points on the model were also taken. Heat without load was applied to the lower surface of the model until maximum surface temperatures of 1600 and 1800 F were reached. These temperatures were then held for 30 min each. A third cycle at a programmed temperature of 1900 F was applied for 15 min, and temperatures and deflection data were recorded. A series of combined load and heat tests were conducted. The conditions simulated those encountered by a typical hypersonic boost-glide vehicle during reentry. The test program verified the 'Hot Structures' design concept and the manufacturing methods and techniques. (Author)

Descriptors :   *AIRFRAMES, *ATMOSPHERE ENTRY, AERODYNAMIC HEATING, AIRPLANE PANELS, COBALT ALLOYS, DEFLECTION, DEFORMATION, DESIGN, HEAT TREATMENT, HIGH TEMPERATURE, HYPERSONIC TEST VEHICLES, HYPERSONIC VEHICLES, LOADING, MODEL TESTS, NICKEL ALLOYS, REENTRY VEHICLES, SIMULATION, SKIN(ANATOMY), TEMPERATURE, TEST METHODS, TESTS, THERMAL STRESSES

Distribution Statement : APPROVED FOR PUBLIC RELEASE