A THERMODYNAMICALLY CONSISTENT FORMULATION OF MAGNETOPOROELASTICITY

The dynamical theory of a porous, elastic, and magnetically inert soli d body infiltrated by a ferromagnetic liquid is formulated. This type of magnetoporoelastic material opens a wide range of technical applica tions, such as controlled Vibration dampers, sensors, and adaptive mir rors. The irreversible deformation and nonlinear coupling among the so lid elastic, fluid rheological and magnetic effects is derived based o n the Biot-Frenkel theory with thermodynamic considerations. The therm al effect, however, is not considered in this paper; A linearized vers ion of constitutive equations and the dynamic equations are introduced . (C) 1998 Elsevier Science Ltd. All rights reserved.