Author(s)

P. Prochazka

Abstract

In some recent papers of the author, localization of damage of composites and fiber-reinforced concretes have been presented, using the BEM as an extraordinarily prospective tool for solving such problems, [4], [6]. The objective of this paper is an optimization of a coating of fibers in composite materials by transformation field analysis, [1]. It consists in a pri- ori relating of stresses and eigenparameters (eigenstresses or eigenstrains) on phases. The eigenparameters can represent, among others, plastic strains, or relaxation stresses. The most endangered region in composites is the interfacial zone between phases. In order to suppress the impact of jump in material stiffness on the contact boundaries of the phases against the localized gradients of stresses in the aggregate, the material nature of the coating will be determined by a

Keywords