Sensitivity analysis for 3-D elastoplastic structural reliability |
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Authors: | Liu Ning |
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Institution: | (1) Department of Engineering Mechanics, Hehai University, 210098 Nanjing, China |
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Abstract: | By taking the elastoplastic effect of structural material into account and based on 3-D elastoplastic stochastic finite element method, methods for sensitivity analysis with respect to both the distribution parameters of random variables and parameters in the limit state function are suggested. In the incremental iterative calculation, the sub-increment changingK, method and the corresponding formulas for accelerating convergence are used. The sensitivity of 3-D structural system reliability with respect to random variables is also studied. |
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Keywords: | stochastic finite element method structural reliability sensitivity analysis elastoplastic structures |
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