PREDICTTHE RESPONSE OF RC BEAM AGAINST IMPACT LOADING WHILE INCORPORATING LARGE DISPLACEMENT

Abstract

A formulation for analyzing beams experiencing impact loading, taking into account their large displacement behavior, is developed using a three-node beam element based on displacements. Ever since computers were first applied to nonlinear structural analysis, various nonlinear beam elements have been proposed. The substantial number of publications on nonlinear analysis of beam structures is partly attributed to the availability of different nonlinear formulations. However, it remains unclear which formulation is the most effective. It is worth noting that developing a comprehensive nonlinear beam formulation is not a simple task when considering a beam element. This study aims to address this issue by proposing a formulation to accurately predict the nonlinear behavior of beams subjected to impact loading. To validate the proposed formulation, it is cross-verified against experimental data from various research studies available in the literature through statistical analysis. Further, a comparative study is conducted with previously available literature models and with those predicted by the proposed large displacement solution model. This comparison ensures the efficiency and reliability of the model