In connection with the calculation according to the large deformation analysis, I get significantly smaller deformations than for the calculation according to the linear static or second-order analysis. How is this possible?

Answer

For the calculation according to the large defomation analysis, the membrane stiffness or the axial stiffness is also considered with regard to the pure bending stress. For the linear static analysis and the second-order analysis, the bending stiffness is only taken into account for the pure bending stress.

Keywords

Method of analysis Geometrically linear P-Delta Large deformations Difference

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  • Updated 21 December 2020

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