A comparison of the differences between membrane, plate and shell elements.
| Element | Membrane | Plate | Shell |
|---|---|---|---|
| Engineering components | Pressure vessels, oil tanks, ship hull, wing skin | ||
| Analogous to | Truss | Beam with no axial stiffness | Beam |
| Number of nodes | Usually three: One each at the top, middle and bottom |
||
| Displacement degree of freedom | • Translations Ux, Uy | • Translations Uz • Rotations Rx, Ry |
• Translations Ux, Uy, Uz • Rotations Rx, Ry, Rz |
| Stress output | • In-plane stresses | • Bending stresses • Additional transverse shear stresses for thick plates |
• In-plane stress • Bending stress • Additional transverse shear stresses for thick shells |
Also read
Types of elements in the element library
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