Three-dimensional free vibration analysis of thermally loaded fgm sandwich plates
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Дата
2020
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Анотація
Using the finite element code ABAQUS and the user-defined material utilities UMAT and UMATHT, a solid brick graded finite element is developed for three-dimensional (3D) modeling of free vibrations of thermally loaded functionally gradient material (FGM) sandwich plates. The mechanical and thermal material properties of the FGM sandwich plates are assumed to vary gradually in the thickness direction, according to a power-law fraction distribution. Benchmark problems are firstly considered to assess the performance and accuracy of the proposed 3D graded finite element. Comparisons with the reference solutions revealed high efficiency and good capabilities of the developed element for the 3D simulations of thermomechanical and vibration responses of FGM sandwich plates. Some parametric studies are carried out for the frequency analysis by varying the volume fraction profile and the temperature distribution across the plate thickness.
Опис
Ключові слова
functionally graded materials, sandwich plates, free vibrations, 3D graded finite element, 3D thermoelastic finite element analysis
Бібліографічний опис
Burlayenko N. V. Three-dimensional free vibration analysis of thermally loaded fgm sandwich plates [Electronic resource] / N. V. Burlayenko, T. Sadowski, S. Dimitrova. – Kharkiv, 2020. – 22 p. – (Preprint / National Technical University "Kharkiv Polytechnic Institute"). – URI: http://repository.kpi.kharkov.ua/handle/KhPI-Press/43833