Cyclic flexural performance of RC beams with small circular openings in plastic hinge region

Kim, Kil-Hee; Lee, Yong-Jun

doi:10.1016/j.conbuildmat.2022.126339

Cited by 7 publications

(1 citation statement)

References 18 publications

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“…Whereas this new variety of these cell bundles demonstrated a mechanical behavior with regard to bending resistance that is almost identical to that of openings with open rectangular shapes [16]. It is much harder to identify the critical regions surrounding circular openings than those that are rectangular or hexagonal, where it appears that the corners are the critical regions [17]. Numerous studies, in particular the study [18], presented significant findings through a study based on finite element technology, which was used to develop a new and ideal method for reliable design in order to confirm the capacity of these cell bundles with circular openings to withstand various stresses in addition to bending resistance.…”

Section: Introductionmentioning

confidence: 94%

Stress Distribution in Cantilever Beams with Different Hole Shapes: A Numerical Analysis

Ali,

Najem,

Karash

et al. 2023

IJCMEM

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The main duty of engineers is to guarantee that structures are both erect and adhere to codes, which proves their outstanding functionality and economic viability. In today's elastic materials, the von Mises stress values have to be verified when examining fatigue or failure. In the domains of heavy lifting, robotics, mechanical and offshore engineering, oil and gas engineering, and civil engineering, the Von Mises criteria are among the most often used benchmarks for assessing productivity conditions. In this study, seven I-beams models will be built, the first model without holes and the other six models with holes in various shapes (square, triangular, circular, hexagonal, and rectangular). The ANSYS program will be used to solve it using the finite element method. For the upper surface of these models, equal loads will be applied. The findings demonstrate that the shear stress values for the seven models were less than the shear stress values of the metal, which came to (370MPa), in line with the theory of maximum shear stress. With a value of (62.7MPa), the second-best model was the best. One of the most important conclusions when comparing the values of von Mess stresses with the von Mess theory of stress is that the third model (with rectangular openings) performed better than the other models when compared to the first model because its value was the same in both models (370MPa). The seventh model (hexagonal holes) had the lowest maximum value of stress intensity at 261MPa, per the results. being aware that this model weighs (70Kg) less than the first.

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Section: Introductionmentioning

confidence: 94%