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Influence of skin/core debonding on free vibration behavior of foam and honeycomb cored sandwich plates |
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| Authors: | Vyacheslav N Burlayenko Tomasz Sadowski |
| Institution: | aDepartment of Applied Mathematics, Engineering and Physical Faculty, National Technical University ‘KhPI’, 21 Frunze St., 61002 Kharkov, Ukraine;bDepartment of Solid Mechanics, Faculty of Civil and Sanitary Engineering, Lublin University of Technology, 40 Nadbystrzycka St., 20-128 Lublin, Poland |
| Abstract: | The dynamic behavior of partially delaminated at the skin/core interface sandwich plates with flexible cores is studied. The commercial finite element code ABAQUS is used to calculate natural frequencies and mode shapes of the sandwich plates containing a debonding zone. The influence of the debonding size, debonding location and types of debonding on the modal parameters of damaged sandwich plates with various boundary conditions is investigated. The results of dynamic analysis illustrated that they can be useful for analyzing practical problems related to the non-destructive damage detection of partially debonded sandwich plates. |
| Keywords: | Debonding Sandwich plates Free vibration analysis Finite element predictions |
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