Development of debond region of lag model

by

P. Prochazka and M. Sejnoha

Abstract

The pull-out problem, frequently solved in the cracking of composite structures, is numerically treated. A model example of the lag model simplifies the geometry of the problem, and makes it possible to use highly efficient finite element procedures. While most of the authors solving the problem previously used the explicit solution, making use of some hypotheses (the pull-out problem on the fibers separately enables such a solution but the surrounding matrix gives only a very rough approximation), in this paper the high accuracy finite element method, together with Uzawa's algorithm, brings about some new views on the behavior of the fiber-matrix system in the pull-out problem.
Last modified: Nov 4 2000