NUMERICAL CONSTITUTIVE MODEL FOR LAMINATED COMPOSITE MATERIALS

E. CAR; S. OLLER; E. OÑATE

Conferencia; 2nd ESAFORM - Conference; 1999

In this work a generalized anisotropic elastoplastic constitutive model for the largestrain analysis of fiber-reinforced composite materials in the frame of mixing theory and thefinite element method is presented. The isotropic equivalent formulation proposed assumes theexistence of a fictitious isotropic space where a mapped fictitious problem is solved. Both realanisotropic and fictitious spaces are related by means of linear fourth order transformationtensors that contain the complete information about the real anisotropic material. Applicationexamples showing the performance of the model for analysis of fiber reinforced compositematerials is given.