Abstract
In the present paper, the effect of the fiber contents and the curvature on the probabilistic analysis of free vibration of Short Alpha Fibers (SAF) reinforced Cylindrical Shallow Shells has been presented. Firstly, an experimental study is carried out to manufacture the cylindrical shallow shells with different fiber contents from Alfa (Wf = 5%, 10% and 15%) impregnated with Medapoxy STR resin. Using a hammer, free vibration testing is made to predict damping coefficients, frequencies and mode shapes versus Wf and cylinder curvature (k). A numerical model was developed by ANSYS software to compute the natural frequencies and the corresponding shapes and compare them with the experimental results. Finally, a Monte Carlo simulation (MCS) is developed to study the probabilistic free vibration of cylindrical shallow shells modeled by finite element (FE). Material and physical properties are considered uncertain parameters and are represented by different Coefficients of Variation (CoV). The results show that reinforcing the epoxy matrix with SAF makes the cylindrical shallow shells more flexible and deformable due to high strain values and low stiffness. In fact, it can also reduce the effect of high resonance by considering the damping phenomenon. The reliable design of cylindrical shallow shells can only be ensured by intensive control of Young's modulus CoV (Ec).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
