Failure of Composite Cylinder Under Implosion

This consultant is an expert in containers, made of either paper board or metals that are often filled with warm/hot contents and then sealed for shipping. This is especially popular in food industry. The contents cool down inside a sealed container creates vacuum. If the vacuum is too much, implosion in the form of buckling or large deformation of the container occurs which makes a cylindrical container not round any more. When this happens, the products become imperfect in appearance and the sale value drops. An expert analysis was performed to determine the temperature variation of the contents which may cause the imperfection to occur. The analysis results were confirmed with specially designed experiments. A recommendation was made to the client as for how to avoid the implosion in the assembly process.

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