Abstract: Smart materials have the ability to perform both sensing and actuating,with which some coupling effects will show among some of electric,magnetic,thermic, mechanical, optical, acoustical, chemical,or rheological properties of the materials without outside actions.Once the smart materials are built into structures,they will become smart or intelligent,This review focuses on the rnechanical analysis on linear electromagneto-thermo-solids,especially piezoelec- tric materials,and the control theory for smart st...