Author : Mostafa Kamel Metwally Zidan
CoAuthors : M. N. Fayed; A. M. Elhosiny;K. M. Abdelgawad;H. H. Orfy
Source : 13th International Conference on Structures Under Shock and Impact, 3 - 5 June 2014, The New Forest, UK. Journal of Structures Under Shock and Impact XIII, WIT Press, 3/6/2014
Date of Publication : 01/2014
Abstract :
A numerical study for damage of RC columns under demolition blasting has
been carried out and the results were compared with available experimental
work. Basic considerations for the finite element method of the LS-DYNA
Program are introduced. Equations of state models as well as three constitutive
material models (the concrete mass, the reinforcing steel, and the high energy
explosive material) are described in detail. In the present work, three Finite
Element modeling of steel bars as beam, solid elements or by converting
reinforcement quantity into concrete solid elements have been examined through
comparison with available experimental work. The influence of different
parameters on the blasting damage pattern of RC columns has been investigated.
These parameters include steel rebar arrangement, explosive factors and the
concrete strength of columns. The results have been presented and discussed.
Keywords: demolition, blast, damage pattern, RC column, explosive factors, LSDYNA, experimental results, solid element, beam element, finite element models
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