(A) Schematic representation of ζ1 and ζ2 defined along the lesser curvature and greater curvature of the aorta, respectively. The origin of both path coordinates is at the distal edge of FET. Plots of the circumferential stresses on (B) ζ1 and (C) ζ2 before and after the elastic recoil of the FET in a case of the oversizing rate of 15%. (D) Plot of the maximum circumferential stress on ζ2 after the elastic recoil of FET against the oversizing rate. (E) Plot of the bending angle against the oversizing rate. FET: frozen elephant trunk.