1) The document describes a structural analysis of plastic fuel tanks under pressure loading using finite element analysis (FEA).
2) A plastic fuel tank model was created in CATIA and meshed in Hypermesh. The model was then analyzed in ANSYS to determine stresses and displacements under pressure loading.
3) The analysis found that introducing a Next Generation Tank Stiffener (NGTS) reduced the maximum displacement and von Mises stress in the tank, indicating improved structural strength over the basic tank model without the stiffener.