TY  - EJOU
AU  - Botta, Alexandre S. 
AU  - Venturini, Wilson S.  

TI  - Reinforced 2d Domain Analysis Using BEM and Regularized BEM/FEM Combination
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2005
VL  - 8
IS  - 1
SN  - 1526-1506

AB  - In this work a regularized boundary-finite element combination is proposed to analyse 2D elastostatic solids reinforced by fibres. The boundary element is adopted to model the matrix behaviour, while finite elements model the embedded fibres. The debonding effects caused by the adherence loss between the two materials are also considered. A three-degree polynomial is adopted to approach the displacement field along the fibre elements, while linear approximations are used to represent the bonding forces between fibres and the matrix. The non-linear debonding model is governed by a loading function written in terms of the contact forces and the relative displacements. The BEM algebraic equations are combined with the fibre finite element relations to eliminate the displacement unknowns along the interface. Then, the resulting redundant algebraic equations are eliminated by applying the least square procedure. An implicit non-linear scheme was proposed to model the debonding effects. Examples dealing with reinforced concrete elements are presented to illustrate the capability of the proposed model.
KW  - Boundary elements
KW  -  reinforcements
KW  -  BEM/FEM combination

DO  - 10.3970/cmes.2005.008.015