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Finite element modelling of buried structures (1984)

Simmonds, S. H. ; Playdon, D. K.

In: CASI

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Publication Date: 2005-03-28

Description: In many structures the final stress states are dependent on the sequence of construction or the stress states at various stages of construction are of interest. Such problems can be analyzed using finite element programs that have the capability of adding (birthing) elements to simulate the progress of construction. However, the usual procedure of assembling elements may lead to numerical instabilities or stress states that are unrealistic. Both problems are demonstrated in the analysis of a structure using the program ADINA. A technique which combines application of a preload with element birthing to overcome these problems is described and illustrated.

Keywords: STRUCTURAL MECHANICS

Type: NASA. Langley Research Center Res. in Struct. and Dyn., 1984; p 395-404

Format: text

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