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Volume 29, Issue 1
Computational Issues in Sensitivity Analysis for 1D Interface Problems

Lisa G. Davis & John R. Singler

J. Comp. Math., 29 (2011), pp. 108-130.

Published online: 2011-02

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  • Abstract

This paper is concerned with the construction of accurate and efficient computational algorithms for the numerical approximation of sensitivities with respect to a parameter dependent interface location. Motivated by sensitivity analysis with respect to piezoelectric actuator placement on an Euler-Bernoulli beam, this work illustrates the key concepts related to sensitivity equation formulation for interface problems where the parameter of interest determines the location of the interface. A fourth order model problem is considered, and a homogenization procedure for sensitivity computation is constructed using standard finite element methods. Numerical results show that proper formulation and approximation of the sensitivity interface conditions is critical to obtaining convergent numerical sensitivity approximations. A second order elliptic interface model problem is also mentioned, and the homogenization procedure is outlined briefly for this model.

  • AMS Subject Headings

65N06, 65B99.

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{JCM-29-108, author = {Lisa G. Davis and John R. Singler}, title = {Computational Issues in Sensitivity Analysis for 1D Interface Problems}, journal = {Journal of Computational Mathematics}, year = {2011}, volume = {29}, number = {1}, pages = {108--130}, abstract = {

This paper is concerned with the construction of accurate and efficient computational algorithms for the numerical approximation of sensitivities with respect to a parameter dependent interface location. Motivated by sensitivity analysis with respect to piezoelectric actuator placement on an Euler-Bernoulli beam, this work illustrates the key concepts related to sensitivity equation formulation for interface problems where the parameter of interest determines the location of the interface. A fourth order model problem is considered, and a homogenization procedure for sensitivity computation is constructed using standard finite element methods. Numerical results show that proper formulation and approximation of the sensitivity interface conditions is critical to obtaining convergent numerical sensitivity approximations. A second order elliptic interface model problem is also mentioned, and the homogenization procedure is outlined briefly for this model.

}, issn = {1991-7139}, doi = {https://doi.org/10.4208/jcm.1006-m3119}, url = {http://global-sci.org/intro/article_detail/jcm/8467.html} }
TY - JOUR T1 - Computational Issues in Sensitivity Analysis for 1D Interface Problems AU - Lisa G. Davis & John R. Singler JO - Journal of Computational Mathematics VL - 1 SP - 108 EP - 130 PY - 2011 DA - 2011/02 SN - 29 DO - http://doi.org/10.4208/jcm.1006-m3119 UR - https://global-sci.org/intro/article_detail/jcm/8467.html KW - Finite element method, Interface Problems Sensitivity Equation. AB -

This paper is concerned with the construction of accurate and efficient computational algorithms for the numerical approximation of sensitivities with respect to a parameter dependent interface location. Motivated by sensitivity analysis with respect to piezoelectric actuator placement on an Euler-Bernoulli beam, this work illustrates the key concepts related to sensitivity equation formulation for interface problems where the parameter of interest determines the location of the interface. A fourth order model problem is considered, and a homogenization procedure for sensitivity computation is constructed using standard finite element methods. Numerical results show that proper formulation and approximation of the sensitivity interface conditions is critical to obtaining convergent numerical sensitivity approximations. A second order elliptic interface model problem is also mentioned, and the homogenization procedure is outlined briefly for this model.

Lisa G. Davis and John R. Singler. (2011). Computational Issues in Sensitivity Analysis for 1D Interface Problems. Journal of Computational Mathematics. 29 (1). 108-130. doi:10.4208/jcm.1006-m3119
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