Modelling of steel fibre reinforced concrete under high dynamic loadings

作者：Gebbeken Norbert^*; Greulich Stefan; Pietzsch Achim; Hartmann Thomas

来源：Beton- und Stahlbetonbau, 2008, 103(6): 398-412.

DOI：10.1002/best.200800622

For structural protection against extraordinary loads it is important to find construction materials that offer properties that are especially applicable to the problem. One of these materials is steel fibre reinforced concrete. However for high dynamic loads like from impact or detonation steel fibre reinforced concrete is not yet investigated sufficiently.
This article describes a new empirical material model for the simulation of steel fibre reinforced concrete under high dynamic loadings. This material model also includes a damage model which describes the degradation of stiffness and strength in consequence of plastic (compaction and shear) strain.
The model is implemented in a hydrocode, and validated by a multitude of contact detonation tests. From these results it could be shown that the numerical simulations carried out with the new steel fibre reinforced concrete model are capable to complement or to reduce the expensive and time-consuming experiments, respectively.

• 出版日期2008-6