Fluid-Structure Interaction (FSI) has been the standard when simulating cerebral aneurysms. Nonetheless, obtaining a realistic aneurysm wall geometry without ex-vivo methods has proven difficult. In this article, a nodal assignment method based on empirical distributions is presented, and the effect of wall thickness is studied using one-way FSI simulations for normal and hypertensive pressure cases. Results show that while generally there is an inverse relation between structural parameters (Von-Mises stress and de-formation) and wall thickness, the final distribution of these parameters is defined by a balance between the fluid dynamics (Wall Shear Stress and hemodynamic pressure) and the thickness distribution. Comparisons between the thickness distribution and fluid dynamics were made to illustrate how these two factors affected the final structural parameter contours in the variable assignments, where hemodynamic pressure and aneurysm size were found to influence the leading factor in this duality.