Andrei Constantinescu is currently the directeur de Recherches at CNRS: The French National Center for Scientific Research in the Laboratoire de Mecanique des Solide, and Associated Professor at Ecole Polytechniuqe, Paris. He teaches courses on continuum mechanics, elasticity, fatigue, and inverse problems at engineering schools in the Paris area. His research is in applied mechanics and covers areas ranging from inverse problems and the identification of defects and constitutive laws to fatigue and lifetime prediction of structures under cyclic loading conditions. His research has been applie...