Non-destructive testing methods are used to detecting defects in materials and evaluation of materials properties without causing changes to their usable properties. They are applied in industry to provide the assurance of high quality for semi-manufactured products, final products, devices and materials. Except of many civilian applications they are widely used in rocket and aviation industry ...

HTPB based composite Solid propellants are the source of power for the propulsion of rockets and missiles. Since composite solid rocket propellants, used in rockets and missiles is the fastest degrading component of the complete system, shelf life of the system is mainly governed by the life of the propellants. During storage and transportation, the propellant grains are subjected to various co...

In this study, different flow analysis models in solid rocket motor are introduced. Amongst these models, some are not capable of predicting the effects of significant phenomena such as erosive burning and longitudinal acceleration. In order to consider these effects on the internal ballistic, a quasi-one-dimensional model was developed which employs generalized flow equations. A non-viscous an...

Grain design is the most important part of solid rocket motor design. In this paper the goal is Finocyl grain design based on predetermined objective function with respect to Thrust history or Pressure history in order to satisfy various thrust performance requirements through an innovative design approach using Genetic algorithm optimization method. The classical sampling method is used for de...