- Title
- Using boundary conditions for estimation of complex modulus from flexural wave experiments
- Creator
- Mahata, Kaushik; Mousavi, S.; Soderstrom, T.; Valdek, U.
- Relation
- IEEE Transactions on Control Systems Technology Vol. 13, no. 6, p. 1093-1099
- Publisher
- Institute of Electrical and Electronics Engineers
- Resource Type
- journal article
- Date
- 2005
- Description
- Estimation of the complex Young's modulus from transverse wave experiment is considered in this brief. The main goal is to modify the usual least squares estimate so that additional information provided by the boundary conditions can be incorporated in the estimation algorithm. As a result, it is required to solve a constrained nonlinear least squares problem instead of an unconstrained one. The analytical results are validated using experimental data, where the modified estimates outperform the conventional nonlinear least squares estimate by a significant margin.
- Subject
- boundary condition; complex modulus; flexural waves; identification; nonlinear least squares; regularization; viscoelasticity; propagation experiments; measured strains; impacted bar
- Identifier
- http://hdl.handle.net/1959.13/25371
- Identifier
- uon:371
- Identifier
- ISSN:1063-6536
- Rights
- Copyright © 2005 IEEE. Reprinted from IEEE Transactions on Control Systems Technology, 13, 6, 1093-1099. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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