Structural shakedown analysis by dual finite-element formulations |
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Authors: | P Morelle |
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Affiliation: | University of Liège, Belgium |
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Abstract: | Starting from Melan's and Koiter's well-known theorems, the present paper establishes the lower and upper bound theorems for the shakedown load factor α, corresponding to a given load domain. In the case of a linear (or linearized) plastic condition, this leads to simple dual formulations enabling one to compute dual bounds for complex structures by means of finite-element and linear mathematical-programming techniques. |
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Keywords: | finite element analysis shakedown analysis |
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