Experimental modal testing of a honeycomb sandwich plate
Aborehab, A., Kamel, M., Nemnem, A., Kassem, M. (2020). Experimental modal testing of a honeycomb sandwich plate. EKB Journal Management System, 19(19th International Conference on Applied Mechanics and Mechanical Engineering.), 1-9. doi: 10.1088/1757-899X/973/1/012034
A Aborehab; M Kamel; A F Nemnem; M Kassem. "Experimental modal testing of a honeycomb sandwich plate". EKB Journal Management System, 19, 19th International Conference on Applied Mechanics and Mechanical Engineering., 2020, 1-9. doi: 10.1088/1757-899X/973/1/012034
Aborehab, A., Kamel, M., Nemnem, A., Kassem, M. (2020). 'Experimental modal testing of a honeycomb sandwich plate', EKB Journal Management System, 19(19th International Conference on Applied Mechanics and Mechanical Engineering.), pp. 1-9. doi: 10.1088/1757-899X/973/1/012034
Aborehab, A., Kamel, M., Nemnem, A., Kassem, M. Experimental modal testing of a honeycomb sandwich plate. EKB Journal Management System, 2020; 19(19th International Conference on Applied Mechanics and Mechanical Engineering.): 1-9. doi: 10.1088/1757-899X/973/1/012034

Experimental modal testing of a honeycomb sandwich plate

The International Conference on Applied Mechanics and Mechanical Engineering
Volume 19, 19th International Conference on Applied Mechanics and Mechanical Engineering., July 2020, Page 1-9  XML PDF (800.98 K)
Document Type: Original Article
DOI: 10.1088/1757-899X/973/1/012034
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Authors
A Aborehab1; M Kamel2; A F Nemnem3; M Kassem3
1Space Technology Center, Cairo, Egypt.
2Associate Professor, Aircraft Mechanics Department, Military Technical College, Cairo, Egypt.
3Assistant Professor, Aircraft Mechanics Department, Military Technical College, Cairo, Egypt.
Abstract
Honeycomb structures have been widely used in several applications and industries in the past decades. Such structures have a significant role in aerospace engineering especially in building up the satellite structures. Honeycomb structures provide key benefits represented in high specific strength, high specific stiffness, and superior dimensional stability. Detailed finite element modelling of such structures is a great challenge as it involves high computational expense. Thus, equivalent modelling is mandatory. The detailed and equivalent finite element models of a honeycomb plate are introduced intensively throughout analyzing its dynamic behaviour using the modal analysis module in ANSYS workbench software. The equivalent modelling is carried out via the three-layered sandwich theory and leads to the
calculation of the first four natural frequencies and the related mode shapes. An experimental modal testing of the honeycomb sandwich plate is implemented for the sake of validating the computational results. A good agreement is obtained when comparing both experimental and computational results with mean error not exceeding 5%. Finally, a parametric study is performed to relate the modal analysis results with different boundary conditions cases. The
results show that the model can be a reliable basis for satellite honeycomb sandwich structures design.
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