Abstract
The occurrences of damages in the engineering structures are very common in practicality. In the current eve of time of emergence of composite materials, they are used widely. Hence, it is very important to study the reliability and in crack mechanical properties. So, damage diagnosis becomes crucial and necessary in dynamic members. This work depicts the dynamic behavior of epoxy–glass fibers composite beams taking the effect of bending and torsion coupling to consideration in 1-D model. A Timoshenko beam is assumed for the purpose that includes shear force and rotatory inertia. For the study, cracked beams are modeled as two beams attached by a massless spring with one end fixed boundary condition by FEA. The bending natural frequency is calculated and compared with the natural frequency of the uncracked beam and expressed by its non-dimensional form as relative natural frequency. The effect of depth of crack and location on the dynamic characteristics of the beams was studied and presented.
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Bal, B.B., Parida, S.P., Jena, P.C. (2020). Damage Assessment of Beam Structure Using Dynamic Parameters. In: Deepak, B., Parhi, D., Jena, P. (eds) Innovative Product Design and Intelligent Manufacturing Systems. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-2696-1_17
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DOI: https://doi.org/10.1007/978-981-15-2696-1_17
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