New PDF release: IUTAM Symposium on Mechanics and Reliability of Actuating

By W. Yang

ISBN-10: 1402041306

ISBN-13: 9781402041303

ISBN-10: 1402041314

ISBN-13: 9781402041310

This e-book summarizes the examine findings as an end result from the IUTAM Symposium "Mechanics and Reliability of Actuating fabrics held effectively on September 1-3, 2004 at Tsinghua collage, Beijing, China. Actuating fabrics carry a promise for fast-spreading purposes in shrewdpermanent buildings and energetic regulate platforms, and feature attracted vast recognition from scientists of either mechanics and fabrics sciences groups. excessive functionality and balance of actuating fabrics and constructions play a decisive position of their successive purposes as sensors and actuators in structural regulate and robotics. towards this finish, clinical efforts are of paramount value to realize a deep perception into the complex deformation and failure behaviors of actuating fabrics. Examples valuable of extensive exploration are: (1) the constitutive kinfolk of actuating fabrics that couple mechanical, electric, thermal and magnetic houses, in addition to include part transformation and area change; (2) the actual mechanisms of deformation, harm, and fatigue crack development of actuating fabrics; (3) the improvement of failure-resilient methods that base at the macro-, meso-, and micro-mechanics analyses; (4) the research of microstructural evolution, balance of section transformation, and measurement results of ferroelectric ceramics, form reminiscence alloys and actuating polymers. The above difficulties symbolize an exhilarating problem and shape a study thrust of either fabrics technology and reliable mechanics.

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A thorough understanding of the nonlinear constitutive behavior of ferroelectric materials subject to severe mechanical and electric loading is essential for their application design. Most available studies are on the uniaxial electromechanical behavior of ferroelectric materials subject to simultaneously applied compression and electric loading (see, for examples [1-4]), with both mechanical and electric loading parallel with the poling direction. These studies reveal that the behavior of ferroelectric materials is highly electromechanically coupled, showing clearly the rate effects, the memory effects, and the hysteresis loops.

Glazounov, H. Kleebe, J. Roedel, 2002, Microstructural modification of ferroelectric lead zirconate titanate ceramics due to bipolar electric fatigue, J. Europ. Ceram. , 22, 2133-2142. 10. W. Yang, Z. Suo, 1994, Cracking in ceramic actuators xaused by electrostriction, J. Mech. Phys. Solods, 42, 649-663. 11. H. Y. Zhang, P. Tong, 1997, Local and global energy release rates for an electrically yielded crack in piezoelectric ceramics, J. Mech. Phys. Solids, 45, 491-510. 12. C. Fulton, H. Gao, 1997, Electrical nonlinearity in fracture of piezoelectric ceramics, Appl.

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IUTAM Symposium on Mechanics and Reliability of Actuating Materials: Proceedings of the IUTAM Symposium held in Beijing, China, 1-3 September, 2004 (Solid Mechanics and Its Applications) by W. Yang


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