Finite element studies on field-dependent rigidities of sandwich beams with magnetorheological elastomer cores

    Authors

    G. Y. Zhou; K. C. Lin;Q. Wang

    Comments

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    Abbreviated Journal Title

    Smart Mater. Struct.

    Keywords

    BEHAVIOR; Instruments & Instrumentation; Materials Science, Multidisciplinary

    Abstract

    Sandwich beams with magnetorheological elastomer (MRE) cores exhibit field-dependent dynamic rigidities due to the field-dependent shear modulus of the MRE cores. Such structures have great potential as regards developing stiffness-controllable devices which respond to control signals within milliseconds. The purpose of this paper is to investigate the effect of structural parameters on the field-dependent rigidities of single-layer sandwich beams with MRE cores through finite element analysis. Furthermore, a multilayer sandwich configuration is introduced to provide structures with higher bulk field-dependent rigidities. The structural design rules for multilayer sandwich beams for achieving the desired zero-field rigidities and desired relative change ranges of the field-dependent rigidities are presented. The results will provide basic guidelines for designing stiffness-controllable devices utilizing such MRE based sandwich structures.

    Journal Title

    Smart Materials & Structures

    Volume

    15

    Issue/Number

    3

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    787

    Last Page

    791

    WOS Identifier

    WOS:000238433800014

    ISSN

    0964-1726

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