Vk. Kalpakidis et al., A VARIATIONAL PRINCIPLE FOR ELASTIC DIELECTRICS WITH QUADRUPOLE POLARIZATION, International journal of engineering science, 33(6), 1995, pp. 793-801
In this work a variational principle for elastic dielectrics with quad
rupole polarization is presented. From the systematic application of t
he proposed principle the field equations and the jump conditions are
easily obtained as well as the role of the quadrupole polarization on
the mechanical surface tractions is revealed.