Amir Parviz Khosravi Amiri - Lecturer of Islamic Azad University , Department of Civil Engineering , young researchers and elite club, roudehen branch, Islamic azad University, roudehen, Iran
Saeid Hajighasemali - Assistant professor,Islamic Azad University, Roudehen branch, Roudehen, Iran,
Iman Khatib Damavandi - Student of Structural Civil Engineering, Pyam noor University, North Tehran branch , Iran

An explosion is defined as a sudden, large-scale and quick release of energy. One of the reasons of retrofitting of structures is disruptive effects of environmental conditions, increase of structural load, design and computational errors, frequent modification of regulations and better knowledge of the nature of seismic forces and explosive forces compared with the past along with susceptibility of the buildings against impact, explosion and fire. In the present study, a numerical analysis of a steel plate is done through different arrangement of stiffeners and based on history of explosive loading in Abaqus Software. The diagrams of deformation and energy of steel plate as well as the comparison of results for different arrangements of the stiffeners are also represented.

explosive loading, steel plate, dynamic analysis