Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"motor grain"”.
-
Design Optimization Of Solid Rocket Motor Grains For Internal Ballistic Performance
… optimization tools to the design of solid rocket motor grains per internal ballistic requirements. Research concentrated on the development of an optimization strategy capable of efficiently and consistently optimizing virtually an unlimited range of radial burning solid rocket motor grain …
-
Experimental method of analyzing stress intensity factors and singularity order in rocket motor geometry
… of the maximum stress intensity factor for the motor grain test geometry.
-
Study of surface cracks in a simulated solid rocket propellant grain with an internal star perforation
… and more reliable structural analysis of the grain. Internal star grain design is among the most popular grain shapes that are used in today's propulsion system. Due to its complex geometry, stress concentrations are inevitably present around the highly curved area. Furthermore, this geometric …
-
Experiments for Evlauating 3-D Effects on Cracks in Frozen Stress Models
… results from Smith and his associates for motor grains having similar shaped off-axis cracks, and similar trends were achieved. Comparisons were also made between the natural crack models and the modified boundary element method of Guozhong, Kangda, and Dongdi (GKD) for a semi-elliptic …