Uncoupled vibrations in cracked functionally graded beams with temperature-dependent properties
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DOI:
https://doi.org/10.15625/0866-7136/24104Keywords:
functionally graded material, cracked beam, thermal effect, uncoupled vibrationAbstract
In the present study, the free vibration of cracked temperature-dependent functionally graded Euler--Bernoulli beams is addressed using the power law of material gradation and double spring model of a transverse open crack. Under the assumptions of ignoring inertia for rotation and axial deformation, discomposed longitudinal and bending vibrations are investigated for temperature-dependent multiple-cracked functionally graded beams. Hence, the effect of the material gradation index, temperature rise distribution, and cracks on the natural frequencies of the decoupled vibration modes is examined. Numerical results show that the longitudinal wave speed and the natural frequencies of both the longitudinal and bending vibrations decrease with an increasing material fraction index and temperature rise. It is also revealed that there is a significant effect of material gradation and temperature on the sensitivity of the beam natural frequencies to crack location and depth.
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National Foundation for Science and Technology Development
Grant numbers 107.01-2025.20



