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R. Lackner, H.A. Mang:
"Chemoplastic Material Model for the Simulation of Early-age Cracking: from Experiments to the Constitutive Law";
in: "RILEM International Conference on Early Age Cracking in Cementitious Systems (EAC'01)", K. Kovler, A. Bentur (ed.); National Building Research Institute, Technion, Haifa, 2001, 19 - 29.

In this paper, the determination of the intrinsic material function for the fracture energy, based on experiments, is described. This function is required for the simulation of cracking of early-age concrete by means of a chemoplastic material model. Such material models are applicable to structures which are exposed to different environmental conditions (e.g., to different temperatures). The performance of the material model is illustrated by means of a 1D benchmark problem.

Keywords: cracking, early-age, fracture energy, intrinsic, fracture energy concept, calibration