Today, multi-functional materials such as piezoelectric/ferroelectric ceramics, magneto-strictive and shape memory alloys are gaining increasing applications as sensors, actuators or smart composite materials systems for emerging high tech areas. The stable performance and reliability of these smart components under complex service loads is of paramount practical importance. However, most multi-functional materials suffer from various mechanical and/or electro¬magnetical degra¬dation mechanisms as fatigue, damage and fracture. Therefore, this exciting topic has become a challenge to intensive international research, provoking the interdisciplinary approach between solid mechanics, materials science and physics. This book summarizes the outcome of the above mentioned IUTAM-symposium, assembling contributions by leading scientists in this area. Particularly, the following topics have been addressed: (1) Development of computational methods for coupled electromechanical field analysis, especially extended, adaptive and multi-level finite elements. (2) Constitutive modeling of non-linear smart material behavior with coupled electric, magnetic, thermal and mechanical fields, primarily based on micro-mechanical models. (3) Investigations of fracture and fatigue in piezoelectric and ferroelectric ceramics by means of process zone modeling, phase field simulation and configurational mechanics. (4) Reliability and durability of sensors and actuators under in service loading by alternating mechanical, electrical and thermal fields. (5) Experimental methods to measure fracture strength and to investigate fatigue crack growth in ferroelectric materials under electromechanical loading. (6) New ferroelectric materials, compounds and composites with enhanced strain capabilities.

Inhalt
L. Banks-Sills and Y. Motola: A Fracture Criterion for Piezoelectric Material.- A. R. Engert, F. Felten, H. Jelitto and G. A. Schneider: What do we know about surface charges on cracks in ferroelectric ceramics?.- Y. Shindo and F. Narita: Effects of Electric Field and Poling on Fatigue Behavior of PZT Ceramics with Single-Edge Crack by Three-Point Bending.- F. Auricchio, M. Conti, S. Morganti and A. Reali: Shape Memory Alloys: Material Modeling and Device Finite Element Simulations.- A. S. Semenov, A. C. Liskowsky, P. Neumeister and H. Balke: Effective computational methods for the modeling of ferroelectroelastic hysteresis behavior.- S. Roth, P. Neumeister, A. S. Semenov and H. Balke: Finite Element Simulation of the Non-remanent Straining Ferroelectric Material Behaviour Based on the Electrostatic Scalar Potential Convergence and Stability.- L. Yu, S. Yu and D. Gross: Constitutive Behavior of Nano-particle Ferroelectric Ceramics.- F. Li: An optimization-based computational model for polycrystalline ferroelastics.- R. Mueller, B. X. Xu, D. Schrade and D. Gross: Modeling of domain structure evolution in ferroelectric materials.- Q. Li, M. Enderlein and M. Kuna: Micromechanical simulation of ferroelectric domain switching at cracks.- S. Klinkel and K. Linnemann: A phenomenological constitutive model for ferroelectric ceramics and ferromagnetic materials.- D. K. Vu and P. Steinmann: The concept of material forces in nonlinear electro-elastostatics.- C.-F. Gao and Y.-W. Mai: Permeable interfacial crack in electrostrictive materials.- E. Béchet and M. Kuna: Some numerical studies with X-FEM for cracked piezoelectric media.- J.-S. Wang, X. He and Q.-H. Qin: Singularity analysis of electro-mechanical fields in angularly inhomogeneous piezoelectric composites wedges.- L. Janski, P. Steinhorst and M. Kuna: Crack propagation simulations in piezoelectric structures with an efficient adaptive finite element tool.- V.V. Loboda and S.V. Kozinov: Periodic setof the interface cracks with limited electric permeability.- F. Shang, Y. Yan and T. Kitamura: Interfacial delamination of PZT thin films.- T. Kitamura, T. Sumigawa and T. Sueda: Mechanical Behavior of Thin Film Comprised of Sculptured Nano-elements.- L.M. Gao, Ch. Zhang, Z. Zhong, C.-P. Fritzen, X. Jiang, H.-J. Christ and U. Pietsch: Propagation of SAW and PSAW in a Smart AlN/Diamond/-TiAl Structure.- M.S. Senousy, R.K.N.D. Rajapakse and M. Gadala: Experimental Investigation and Theoretical Modeling of Piezoelectric Actuators Used in Fuel Injectors.- A. Benjeddou and M. Al-Ajmi: Analytical homogenizations of piezoceramic d15 shear macro-fibre composites.- H. Grünbichler, J. Kreith, R. Bermejo, C. Krautgasser and P. Supancic: Influence of the load dependent material properties on the performance of multilayer piezoelectric actuators.- F. Fang, W. Yang and X. Luo: Roles of Micro-Cracking and Phase Transition on Electric Fatigue for [001]-Oriented Pb(Mg1/3Nb2/3)O3-PbTiO3 Single Crystals.- J. Schröder and M.-A. Keip: Multiscale Modeling of Electro-Mechanically Coupled Materials: Homogenization Procedure and Computation of Overall Moduli.- K. Dayal and K. Bhattacharya: A Boundary Element Method Coupled to Phase Field to Compute Ferroelectric Domains in Complex Geometries.- N.-T. Tsou, I. Münch and J. E. Huber: Low energy periodic microstructure inferroelectric single crystals.