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Errata

Erratum: “Electrostatic Forces and Stored Energy for Deformable Dielectric Materials” [Journal of Applied Mechanics, 2005, 72(4), pp. 581–590] OPEN ACCESS

[+] Author and Article Information
Robert M. McMeeking, Chad M. Landis

J. Appl. Mech 75(6), 067002 (Aug 22, 2008) (1 page) doi:10.1115/1.2966272 History: Received May 16, 2008; Revised May 23, 2008; Published August 22, 2008
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In this Erratum we point out and correct an omission of an important term in Eq. (8) of our original paper. This equation was a statement of the conservation of angular momentum and we inadvertently omitted the electrical body couple term that is needed in this momentum balance. In Eq. (9) the electrical body force components biE are defined. A similar equation is needed to define the electrical body couple as

ciE=ϵijkσjkM
Then, the correct statement of the balance of angular momentum and its analysis is given as
VciEdV+Vϵijkxj(bk+bkE)dV+Sϵijkxj(Tk+TkE)dS=ddtVρϵijkxjvkdV,
Vϵijk(σjk+σjkM)dV=0
The result of this analysis appears in Eq. (13) of the original manuscript as
σji+σjiM=σij+σijM
Note that Eq. (13) does not follow from the original Eq. (8), but does follow from this corrected version. Hence, Eq. (13) and all of the remaining equations within the original manuscript are correct.

Copyright © 2008 by American Society of Mechanical Engineers
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