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Related Concept Videos

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The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
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A cantilever beam with a rectangular cross-section under distributed and point loads experiences shearing stresses. The analysis begins by identifying the loads acting on the beam. Then, the reactions at the beam's fixed end are calculated using equilibrium equations. The vertical reaction is a combination of the distributed and point loads, while the moment reaction is the sum of their moments. The shear force distribution along the beam, resulting from these loads, is established by...
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Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
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Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
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The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
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In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
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Parametric Optimization of Torsional Parameters of Ferrocement "U" Wrapped Beams Using Recent Meta-Heuristic

Gopal Charan Behera1, Dilip Kumar Bagal2, Praddyut Kumar Muduli1

  • 1Department of Civil Engineering, Government College of Engineering, Kalahandi 766003, Odisha, India.

Materials (Basel, Switzerland)
|October 28, 2023
PubMed
Summary

This study analyzes structural elements under torsional loads, comparing destructive and non-destructive methods for ferrocement beams. Non-destructive analytical and soft computing methods, using artificial rabbits optimization (ARO) and dynamic arithmetic optimization algorithm (DAOA), accurately predict torsional parameters, offering efficient alternatives to experiments.

Keywords:
MARSWASPASferrocement “U” wrapregression analysistorquetwist

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Area of Science:

  • Structural Engineering
  • Materials Science

Background:

  • Torsion is a critical load in structural design, gaining importance due to updated codes and architectural changes.
  • Analyzing torsional behavior in structural elements, particularly ferrocement beams, requires robust methodologies.

Purpose of the Study:

  • To analyze distressed ferrocement "U" wrapped beams subjected to torsional loads.
  • To compare destructive and non-destructive methods for estimating torsional parameters.
  • To evaluate the efficacy of analytical and soft computing approaches, including ARO and DAOA algorithms.

Main Methods:

  • Destructive method: Experimental determination of torsional parameters.
  • Non-destructive analytical method: Softened truss model.
  • Non-destructive soft computing method: Regression coefficient analysis with Artificial Rabbits Optimization (ARO) and Dynamic Arithmetic Optimization Algorithm (DAOA).

Main Results:

  • Predicted torsional parameters using analytical and soft computing methods showed strong agreement with experimental (destructive) values.
  • Both ARO and DAOA algorithms demonstrated capability in determining global optimum values for engineering problems.
  • Non-destructive methods provide a viable and efficient alternative to traditional experimental approaches.

Conclusions:

  • Analytical and soft computing methods, particularly those employing ARO and DAOA, are effective for analyzing torsional behavior in ferrocement beams.
  • These non-destructive techniques offer significant advantages over time-consuming and expensive experimental methods.
  • The proposed algorithms are broadly applicable to various engineering problems requiring optimization.