Accession Number : AD0464722


Title :   Large Motor Case Technology Evaluation. Volume 1


Descriptive Note : Summary progress rept. no. 1, 11 Jun 1964-11 Jun 1965


Corporate Author : BOEING CO SEATTLE WA


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/464722.pdf


Report Date : Jun 1965


Pagination or Media Count : 150


Abstract : In this volume, the results of base metal and weldment tests, and analyses of design deviations on materials and configurations of large solid motor cases of the 623A class are presented. A resultant end product of the above is the development of tables and curves depicting allowable initial flaw sizes in weldments of three large motor case designs. Such data considers the combined effect of material toughness, anticipated subcritical flaw growth, and total applied stresses which includes the effects of designed and manufactured discontinuities. A second phase of this program summarized in this volume is the data generated during a statistically designed experiment devoted to the development of welding processes on three promising new materials. The effects of welding process variables on weld quality and toughness (KIC) are shown.


Descriptors :   *ROCKET ENGINE CASES , *SOLID PROPELLANT ROCKET ENGINES , STRESSES , NONDESTRUCTIVE TESTING , MATERIALS , PANELS , TOUGHNESS , POROSITY , MARAGING STEELS , WELDING , STEEL , HEAT TREATMENT , WELDS , FEASIBILITY STUDIES , STATISTICAL ANALYSIS , FAILURE(MECHANICS)


Subject Categories : Rockets
      Solid Propellant Rocket Engines


Distribution Statement : APPROVED FOR PUBLIC RELEASE