Benchmark solution ===================== This test is a non-regression test. Bibliographical references --------------------------- 1. V. GODARD: Modeling of anisotropic concrete damage taking into account the unilateral effect: Application to the numerical simulation of confinement chambers. Thesis from the University of Paris VI, 2005. 2. K. WILLAM, E. PRAMONO, S. STURE: Fundamental issues of smeared crack models. Proc. Of the SEM - RILEM Int. Conf. On Fracture of Concrete and Rock, Shah S.P., Schwartz S.E. (eds), Society of Engineering Mechanics, pp. 193-207, 1987. 3. I. CAROL: Anisotropic damage evolution using a pseudo-logarithmic tensor rate. Mechanics of heterogeneous materials, Grenoble, 1999.