Sensitivity analysis of soil parameters based on interval |
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Authors: | Jing-bo Su Guo-jian Shao Wei-jiang Chu |
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Institution: | 1. Key Laboratory of Coastal Disaster and Defence (Hohai University), Ministry of Education, Nanjing 210098, P. R. China 2. College of Civil Engineering, Hohai University, Nanjing 210098, P. R. China |
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Abstract: | Interval analysis is a new uncertainty analysis method for engineering struc-tures. In this paper, a new sensitivity analysis method is presented by introducing interval analysis which can expand applications of the interval analysis method. The interval anal-ysis process of sensitivity factor matrix of soil parameters is given. A method of parameter intervals and decision-making target intervals is given according to the interval analysis method. With FEM, secondary developments are done for Marc and the Duncan-Chang nonlinear elastic model. Mutual transfer between FORTRAN and Marc is implemented. With practial examples, rationality and feasibility are validated. Comparison is made with some published results. |
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Keywords: | interval analysis method sensitivity secondary development of Marc Duncan-Chang model |
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