ABSTRACT
The concrete slab is considered as a plane shell formulated under the Reissner-Mindlin theory. In order to simulate the progressive damage induced by con-
1 INTRODUCTION
When an existing continuous RC structure is strengthened with Fiber Reinforced Polymer (FRP) materials, its ductility and “plastic” rotation capacity may be restricted or even extinct, due to, principally, the linear-elastic stress-strain response of the FRP up to its brittle failure.
