Vessels in composite materials

[matt22222]

Dear colleagues,

What do you think about high pressure vessels made of composite materials for large trAnsportation? Do you think it will be a reliable way of carrying NG in large quantity? Do you have any update news about the state of art of this kind of equipment??

Regards!

[Victor Poole]

I have worked on the design of road tankers constructed from composite materials for non-pressure applications in liquid-carrying tank trailers. There are many issues which arise from the complexity if the properties of composite materials compared with metals. I think we are a long way from being able to consider them for pressure vessels for LNG. I would refer you to ASME BOILER AND PRESSURE VESSEL CODE Section X, Fiber-Reinforced Plastic Pressure Vessels. The introductory paragraph reads as follows:
1 The use of fiber-reinforced plastics for the manufacture of pressure vessels presents unique materials considerations in the design, fabrication, and testing of these vessels. Metallic vessels, being made from materials which are normally isotropic and ductile, are designed by using well-established allowable stresses based on measured tensile and ductility properties. In contrast, fiber-reinforced plastics are usually anisotropic and the physical properties are dependent upon the fabrication process, the placement and orientation of the reinforcement, and the resin matrix.

[Victor Poole]

I have worked on the design of road tankers constructed from composite materials for non-pressure applications in liquid-carrying tank trailers. There are many issues which arise from the complexity if the properties of composite materials compared with metals. I think we are a long way from being able to consider them for pressure vessels for LNG. I would refer you to ASME BOILER AND PRESSURE VESSEL CODE Section X, Fiber-Reinforced Plastic Pressure Vessels. The introductory paragraph reads as follows:
1 The use of fiber-reinforced plastics for the manufacture of pressure vessels presents unique materials considerations in the design, fabrication, and testing of these vessels. Metallic vessels, being made from materials which are normally isotropic and ductile, are designed by using well-established allowable stresses based on measured tensile and ductility properties. In contrast, fiber-reinforced plastics are usually anisotropic and the physical properties are dependent upon the fabrication process, the placement and orientation of the reinforcement, and the resin matrix.