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oai:mountainscholar.org:10217/1734722025-12-30T03:24:22Zcom_10217_100532com_10217_100000com_10217_100369com_10217_100303col_10217_100538col_10217_100381

Khattab, Mustafa M., author Heyliger, Paul, advisor Ellingwood, Bruce, committee member Puttlitz, Christian, committee member 2016-07-13T14:50:16Z 2016-07-13T14:50:16Z 2016 Khattab_colostate_0053N_13461.pdf http://hdl.handle.net/10217/173472 https://doi.org/10.25675/3.018567 Two-dimensional cellular solids composed of magneto-electro-elastic (MEE) materials were studied using the finite element method (FEM). A MATLAB code was written to implement field models to determine the effective properties for this cellular solid including elastic, piezoelectric, piezomagnetic, thermal, pyroelectric and pyromagnetic effective properties as a function of the relative density. Results obtained for purely elastic properties were compared with results from other studies and showed good agreement. Varying microstructures of the cellular solids including square, equilateral triangle and hexagonal systems, were considered and comparisons between the results of all the geometries were established. The triangular cellular solid was the stiffest among all shapes, and the regular hexagon cellular solid showed the highest effective coupling constants for the piezoelectric, piezomagnetic, pyroelectric and pyromagnetic coefficients. The thermal expansion coefficient was found to be independent from the relative density and was constant for all the MEE cellular solid shapes. A set of simple equations are proposed to approximate the effective properties for these low density MEE solids. born digital masters theses English eng Colorado State University. Libraries 2000-2019 Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. effective properties MEE materials cellular solids piezoelectric honeycomb Effective properties of magneto-electro-elastic two-dimensional cellular solids Text Master of Science (M.S.) Masters Civil and Environmental Engineering Colorado State University This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). open.access