Influence of strain softening on spalling of concrete due to blast load
Paper in proceedings, 2014

A society needs a certain readiness for different emergency situations, such as explosions within the urban community but also civil safety shelter in the case of war. Therefore, the ability to evaluate and to strengthen existing buildings exposed to new demands is of great importance. Many experiments and numerical analyses indicate that structures of fibre reinforced concrete yield a more favourable response during dynamic load conditions compared to plain concrete. In this study the effects of spalling of a concrete wall subjected to blast loads were studied for plain concrete modelled with an elastic-plastic material model. The results from the analysis show that spalling occur when cyclic loading from a pressure wave gradually increase the plastic strains in the concrete.

spalling

concrete

wave propagation

strain-softening

Author

Jonas Ekström

Chalmers, Civil and Environmental Engineering, Structural Engineering

Rasmus Rempling

Chalmers, Civil and Environmental Engineering, Structural Engineering

Mario Plos

Chalmers, Civil and Environmental Engineering, Structural Engineering

Nordic Concrete Research

Vol. 2/2014 50

Areas of Advance

Building Futures (2010-2018)

Subject Categories

Civil Engineering

More information

Created

10/7/2017