Mathematical modelling of the X-ray image of solid rocket motor for quantitative analysis

The mathematical modelling of radiographic images provides valuable input for the prediction of the characteristics of flaws in the test material. It can be used as an effective tool for the interpretation and analysis of radiographic images. In this paper, studies carried out on mathematical modelling of X-ray images for the quantitative evaluation of solid rocket motors is presented. The CAD data is used in the algorithm to simulate the complicated port geometry due to the star configuration. The close similarity of the simulated radiographs with the experimentally obtained radiographic images justifies the use of simulation in X-ray radiographic imaging. A necessary algorithm has also been developed for the simulation of radiographic images with spherical and ellipsoidal defects in the solid rocket motor. Case studies are also presented to emphasise the importance of simulation in radiographic NDE.