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Sensitivity analysis of blast loading parameters and their trends as uncertainty increases
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Title
Sensitivity analysis of blast loading parameters and their trends as uncertainty increases
Name
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Borenstein
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Elan
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Elan Borenstein
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author
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Benaroya
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Haym
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Advisory Committee
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Haym Benaroya
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chair
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Baruh
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Haim
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Advisory Committee
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Haim Baruh
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internal member
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Song
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Peng
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Advisory Committee
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Peng Song
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Rutgers University
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Graduate School - New Brunswick
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theses
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2007
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2007
Language
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English
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electronic
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xiv, 106 pages
Abstract
A sensitivity analysis of blast loading parameters is performed to determine which of the parameters' uncertainty has the greatest effect on
the maximum deflection of an aluminum plate subjected to a blast load. A numerical simulation using the Monte Carlo method is used to obtain the ensemble averages of the probabilistic runs. The random variables were given a uniform distribution. Two simplified loading models are used. The first has an instantaneous rise with an exponential decay, represented by the modified Friedlander equation. The second loading model has a linear rise with an exponential decay. Both of these models are simulated with three different blast scaled values, giving a total of six different cases.
In addition, the deflection trends due to the loading parameters as uncertainty increases is quantified. Probability density functions of the
maximum deflection are also presented. The probabilistic results and trends are also explained using deterministic methods. It appears that the duration time of the loading models is generally the most sensitive parameter to uncertainty.
the maximum deflection of an aluminum plate subjected to a blast load. A numerical simulation using the Monte Carlo method is used to obtain the ensemble averages of the probabilistic runs. The random variables were given a uniform distribution. Two simplified loading models are used. The first has an instantaneous rise with an exponential decay, represented by the modified Friedlander equation. The second loading model has a linear rise with an exponential decay. Both of these models are simulated with three different blast scaled values, giving a total of six different cases.
In addition, the deflection trends due to the loading parameters as uncertainty increases is quantified. Probability density functions of the
maximum deflection are also presented. The probabilistic results and trends are also explained using deterministic methods. It appears that the duration time of the loading models is generally the most sensitive parameter to uncertainty.
Note
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M.S.
Note
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Includes bibliographical references (p. 103-105).
Subject
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Topic
Mechanical and Aerospace Engineering
Subject
(ID = SUBJ2);
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Topic
Blast effect--Mathematical models
Subject
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(authority = ETD-LCSH)
Topic
Blast effect--Simulation methods
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Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.15787
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ETD_397
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doi:10.7282/T3XW4K74
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ETD graduate
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Open
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Elan Borenstein
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Rutgers University. Graduate School - New Brunswick
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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