Abstract
Vibration analysis of plates with openings represents an important issue in civil, aerospace, and mechanical engineering applications. It has been familiar that the opening or cut-out may be considered as a defect in most cases, which generally leads to a decrease in the stiffness of the member, according to the opening’s size, shape as well as location. Hence, it affects the dynamic properties, for instance, the natural frequencies and the mode shapes. In this work, numerical modal analysis of fixed ends supported RC concrete slabs with three different aspect ratios as well as two different central square and circular openings has been investigated. The study is based on evaluating the natural frequency of these cases, as a global parameter. A simulation process for the modal analysis using ANSYS software is done to compare the results. The natural frequencies of RC concrete slab with openings have been evaluated and compared with each other as well as with the intact slab, as control ones. The results showed that both two shapes of central openings have an impact on the natural frequencies of the slab depending on sizes and aspect ratios.
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.
