Accepted Manuscript Numerical study and topology optimization of 1D periodic bimaterial phononic crystal plates for bandgaps of low order Lamb waves Saeid Hedayatrasa, Kazem Abhary, Mohammad Uddin PII: S0041-624X(14)00331-X DOI: http://dx.doi.org/10.1016/j.ultras.2014.11.001 Reference: ULTRAS 4955 To appear in: Ultrasonics Received Date: 21 May 2014 Revised Date: 14 October 2014 Accepted Date: 4 November 2014 Please cite this article as: S. Hedayatrasa, K. Abhary, M. Uddin, Numerical study and topology optimization of 1D periodic bimaterial phononic crystal plates for bandgaps of low order Lamb waves, Ultrasonics (2014), doi: http:// dx.doi.org/10.1016/j.ultras.2014.11.001 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.