I am performing an static analysis for a closed rectangular gas tank (steel) with 3mm thickness which is exposed to internal gas pressure of 0.08 Mpa.

Gas tank dimensions are 1400 x 950 x 625 (L x H x W). I need to find maximum deformation and stress values.

Please let me know how to perform hand calculations for the above case for validation purpose.

Note: For FEA simplification,I have took symmetry of gas tank through it length and used midsurface (shell elements) in ANSYS.

Thanks,

Naveen

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