3R2. Mechanics in Material Space: With Applications to Defect and Fracture Mechanics. - R Kienzler (Univ Bremen, Postfach 330440, Bremen, D-28334, Germany) and G Herrmann (Stanford Univ, Ortstrasse 7, Davos Platz, CH-7270, Switzerland). Springer-Verlag, Berlin. 2000. 298 pp. ISBN 3-540-66965-5. \$54.00.

Reviewed by HW Haslach Jr (Dept of Mech Eng, Univ of Maryland, College Park MD 20742-3035).

The mechanics of bodies with defects is typically described by material forces which are negative gradients of an energy or by related path independent integrals. The goal of this book is to draw a parallel between classical linear elastic mechanics and the mechanics of bodies with defects, called here Mechanics in Material Space, which describes a mathematical model for the behavior of material defects such as inclusions, voids, cracks, or dislocations. For example, the Cauchy stress and the Eshelby tensor are...