Abstract
The nature of fracture in high strength concrete is brittle and therefore, the investigation behavior of flexural high strength concrete (HSC) members is important. This paper describes the deflection, strain and energy ductility and the lifetime history of experimental and theoretical analysis of six caste reinforced HSC beams with different percentage of I and I׳. The beams were loaded incrementally by a two point loads and the vertical deflection and concrete strain were measured at mid span, at 20cm from mid span and under load point up to failure. Based on the experimental results, load-deflection, load-strain and energy observed diagrams of each beam for mentioned sections plotted. In the theoretically phase, a 3-D model i.e., ANSYS nonlinear software was used and the load-deflection, load-strain and energy observed diagrams were also plotted and the comparison of experimental and theoretical results for lifetime history of HSC beams is performed. The obtained results by two methods are indicated that a reasonably good agreement is achieved.
Highlights
Of plasticity, damage theory and fracture mechanics, among others, an unique and complete constitutive The implementation of nonlinear material laws in model for reinforced concrete is still lacking[1]
The results of load-deflection at mid span, 20cm from mid span and under load point tests, and the load-strain at these sections on high strength concrete (HSC) reinforced beams reported by [4] were used to asses the suitability of the reinforce concrete model implemented in ANSYS in predicting the lifetime history response of reinforced HSC beams
No report was observed for load-strain material ANSYS modeling of reinforced HSC beams. only recently researchers have attempted to simulate the behavior of ordinary and high strength concrete strengthened with fiber reinforced polymer (FRP) composite using finite element method[5]
Summary
Of plasticity, damage theory and fracture mechanics, among others, an unique and complete constitutive The implementation of nonlinear material laws in model for reinforced concrete is still lacking[1]. No report was observed for load-strain material ANSYS modeling of reinforced HSC beams.
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