Functionally graded materials are composite materials used to build a variety of structures. These structures are used in ships industries, marine, automotive, high building structures, energy engineering applications, and many more. The porosity made in these materials may negatively affect some behavior aspects like stiffness, and strength, but it may provide superior performance in other fields like vibration reduction, thermal isolation, energy absorption, and others. In this paper, we will discuss the effect of porosity on the natural frequencies for functionally graded porous (FGP) sandwich beams. The mechanical properties of the FGP sandwich beams are changing with the porosity in the thickness direction. The free vibration of the beams is examined with the effect of porosity. The analysis is carried out for four different beam supporting types (hinged – hinged, fixed – fixed, fixed – free, fixed – hinged). Various porosity ratios are considered with a range from (0.1 – 0.9). Forty–four samples are analyzed for each type of core material distribution which is the symmetric material constitutive relationships (SMCR) and uniform core material. The results gained from the analysis show that the porosity constant has a significant effect on the natural frequencies of the FGP sandwich beams.
Dynamic analysis Finite element method FGM Porous materials Sandwich beam Free vibration
Birincil Dil | İngilizce |
---|---|
Konular | İnşaat Mühendisliği |
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 30 Aralık 2022 |
Gönderilme Tarihi | 23 Ağustos 2022 |
Kabul Tarihi | 21 Eylül 2022 |
Yayımlandığı Sayı | Yıl 2022 Cilt: 7 Sayı: 4 |
Journal of Sustainable Construction Materials and Technologies is open access journal under the CC BY-NC license (Creative Commons Attribution 4.0 International License)
Based on a work at https://dergipark.org.tr/en/pub/jscmt
E-mail: jscmt@yildiz.edu.tr