Year 2024

• Detection of Closing Crack in Beam Based on Responses Induced by Harmonic Excitation

  Publication

  • S. A. Tewelde
  • M. Krawczuk

  - SENSORS - Year 2024

  The non-linear contact model was chosen to simulate the closed crack in the cantilever beam. The study examines the shape and characteristics of the phase diagram of a cantilever beam with closed cracks. It investigates how various crack properties influence the geometry of the phase diagram and proposes a method for identifying cracks based on their features. The area of each closed curve in the phase diagram is determined using...

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Year 2022

• NONLINEAR VIBRATION ANALYSIS OF BEAM AND PLATE WITH CLOSED CRACK: A REVIEW

  Publication

  • S. A. Tewelde
  • M. Krawczuk

  - Acta Mechanica et Automatica - Year 2022

  The effect of nonlinearity is high sensitivity in damage detection, especially for closed cracks and delamination. This review illustrates the results of several researchers dealing with nonlinear effects caused by the closure of cracks in the structure, i.e., beam and plate structures. Early detection of damage is an important aspect for the structure and, therefore, continuous progress is being made in developing new and effective...

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