Thermoelastic stationary analysis of non-oriented grain steels using BEM

Resumo

This work deals with a thermoelastic analysis of anisotropic cold-rolled non-oriented grain steels (FeSi)

where the material is subjected to severe thermal and inertial loads. Following the stationary thermoelasticity for-
mulation of the boundary element method (BEM), this model focuses on the 2D study of these materials when

the elastic properties are temperature-dependent. The cold rolling process promotes a deformed microstructure on
steels with 3%Si. After the cold rolling process, this material is subjected to an annealing process to recrystallize
the microstructure. This process promotes crystallographic texture in the material, with a strong Goss fiber and
weak (hkl)[110] and (111)[uvw] fibers. That is, although classified as non-oriented grain steel after the annealing

process, steels with 3%Si produced by the cold-rolled process have crystallographic texture in all stages of man-
ufacturing, resulting in an anisotropic material. An industrial application is shown to illustrate the feasibility of

using the presented formulation, and the stationary thermomechanical response of the material. Taking advantage
of the BEM capabilities to solve high gradients and secondary mechanical fields within the domain.