Construction of a tensiontorsion anisotropic brittle damage elastic model
Abstract
The behavior of concrete can be described in the first approximation by a brittle damaged elastic model. This model presents an induced anisotropy which depends on loading path. A second order symmetric tensor D is used to represent the anisotropic evolution of damage. A model based on effective stresses is applied for a tensiontorsion load. Having a symmetric law either in tension and compression leads to consider other forms of effective stresses which contain the sign of principal stresses and another scalar variable of damage d, so that the damage acts differently in tension and in compression loads.
 Publication:

Ph.D. Thesis
 Pub Date:
 February 1991
 Bibcode:
 1991PhDT........57K
 Keywords:

 Anisotropy;
 Brittle Materials;
 Damage;
 Tensile Stress;
 Torsional Stress;
 Compression Loads;
 Elastic Deformation;
 Finite Element Method;
 Stress Analysis;
 Structural Mechanics