Nonuniform wall thickness profile for teardrop pressure vessels

A pressure vessel extending along a centerline and configured to contain a pressurized fluid, the pressure vessel comprising a body defined by a cross-sectional shape along a plane transverse to the centerline, the cross-sectional shape comprising:

• an inner surface defining an interior void, the inner surface comprising:
• an arcuate region;
• and
• a gabled region, the gabled region forming a curved interior peak opposite a center of the arcuate region,
• wherein the arcuate region and the gabled region together define a teardrop shape;
• and
• a wall extending from the inner surface to an outer surface defining an exterior of the body, the wall comprising:
• a curved segment along the arcuate region, the curved segment having a curved segment minimum thickness at a location opposite the interior peak;
• an apex portion having an apex defined on the outer surface aligned with the interior peak, the apex having an apex thickness;
• and
• thickened regions adjacent intersections between gabled region and the arcuate region, the thickened regions having greater radial thickness than the curved segment minimum thickness.