Influence of Strain-rate Effects on the Analysis of Steel Sections under Blast Loads

The response of structural steel components under explosive loading is numerically investigated. First the procedure for determining the pressure loads to be applied on a structure after an explosion is briefly described. The importance of the material model and its capability of including the high strain-rate effects in the numerical analysis is studied by comparing simulations by the FEM code EUROPLEXUS with published data of real blast experiments. These comparisons are made with respect to the material models, utilizing the Cowper-Symonds law, the Johnson-Cook constitutive equation, a dynamic increase factor for the yield strength or only the static stress values. It is shown that the more comprehensive modelling can adequately reproduce the experimental data.

KARLOS Vasileios;  SOLOMOS George; 

2014-12-12

Metal Structure Research Society- M.S.R.S.

JRC92068

https://publications.jrc.ec.europa.eu/repository/handle/JRC92068,