Prediction of Maximum Strain in Finocyl Port Case-bonded Solid Propellants under Pressure Loading

Abstract

Finite element analysis of case-bonded solid propellants in finocyl port configuration has
been carried out using finite element method. The parametric studies have also been conducted
for loading conditions, material properties, and geometrical configurations. The results are
presented in the form of a universal power law, which can be utilised for primary assessment
of peak strain in any finocyl port propellant configuration without using finite element software.
This eliminates dependence on finite element software for structural integrity analysis of solid
propellants in finocyl port configuration under port pressurisation. The results obtained by finite
element analysis and power law are in close agreement.