Buckling enhancement of epoxy columns using embedded shape memory alloy spring actuators

    Authors

    H. P. Han; K. K. Ang; Q. Wang;F. Taheri

    Comments

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    Abbreviated Journal Title

    Compos. Struct.

    Keywords

    buckling enhancement; SMA spring actuator; actuation force; structural; stability; Materials Science, Composites

    Abstract

    In this paper, the actuation force of shape memory alloy (SMA) springs is employed to enhance the structural stability of flexible columns. Based on three application modes of SMA springs, these actuation forces are simplified as a pair of concentrated push-forces at both ends of the spring. The governing equations of vibration for columns are used to obtain the critical buckling load via the static-kinematic approach. Parametric studies are performed with the variation in the location and length of the SMA spring using a numerical investigation. The results indicate that the SMA spring is potentially most effective at the maximum slope location of the buckled mode shape. An experimental investigation was also performed to validate the integrity of the proposed system. A good comparison was observed between the numerical and experimental results. (c) 2004 Elsevier Ltd. All rights reserved.

    Journal Title

    Composite Structures

    Volume

    72

    Issue/Number

    2

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    200

    Last Page

    211

    WOS Identifier

    WOS:000234967700006

    ISSN

    0263-8223

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