The topological derivative is defined as the first term (correction) of
the asymptotic expansion of a given shape functional with respect to a
small parameter that measures the size of singular domain perturbations,
such as holes, inclusions, defects, source-terms and cracks. Over the
last decade, topological asymptotic analysis has become a broad, rich
and fascinating research area from both theoretical and numerical
standpoints. It has applications in many different fields such as shape
and topology optimization, inverse problems, imaging processing and
mechanical modeling including synthesis and/or optimal design of
microstructures, fracture mechanics sensitivity analysis and damage
evolution modeling. Since there is no monograph on the subject at
present, the authors provide here the first account of the theory which
combines classical sensitivity analysis in shape optimization with
asymptotic analysis by means of compound asymptotic expansions for
elliptic boundary value problems. This book is intended for researchers
and graduate students in applied mathematics and computational mechanics
interested in any aspect of topological asymptotic analysis. In
particular, it can be adopted as a textbook in advanced courses on the
subject and shall be useful for readers interested on the mathematical
aspects of topological asymptotic analysis as well as on applications of
topological derivatives in computation mechanics.