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Global sensitivity analysis of unreinforced masonry structure using high dimensional model representation
Deepjyoti Mukherjee, ,
Published in
2011
Volume: 33
   
Issue: 4
Pages: 1316 - 1325
Abstract
Sensitivity Analysis (SA) has very important implications in terms of model assessment. It is an important part of reliability studies as well. This paper presents global SA using High Dimensional Model Representation (HDMR) on a mesoscale model of unreinforced masonry shear wall. The mesoscale model contains both geometric as well as material nonlinearity. Prior to performing global SA: (a) mesh sensitivity study in order to determine the optimum mesh size; and (b) experimental validation of the finite element simulation using the data available in the literature, are conducted. The ability of two major variations of HDMR, namely RS (Random Sampling)-HDMR and Cut-HDMR, for conducting global SA is explored, first by solving analytical problem and later by analyzing the mesoscale model of unreinforced shear wall. From the study, recommendations are made to obtain the sensitive parameters of an unreinforced masonry structure with minimal computational effort. © 2011 Elsevier Ltd.
About the journal
JournalEngineering Structures
ISSN01410296
Open AccessNo
Concepts (26)
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    ANALYTICAL PROBLEMS
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    Computational effort
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    Experimental validations
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    Finite element simulations
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    Global sensitivity analysis
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    HDMR
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    HIGH DIMENSIONAL MODEL REPRESENTATION
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    Material non-linearity
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    MESH SENSITIVITY
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    Mesh size
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    MESOSCALE MODEL
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    MESOSCALE MODELING
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    METHOD OF SOBOL'
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    MODEL ASSESSMENT
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    Random sampling
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    Sensitive parameter
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    Unreinforced masonry
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    UNREINFORCED SHEAR WALLS
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    MASONRY MATERIALS
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    Shear walls
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    Sensitivity analysis
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    Finite element method
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    Masonry
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    Modeling
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    Numerical model
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    Structural analysis