Transient Dynamic Analysis of Grid-Stiffened Composite Conical Shells

محورهای موضوعی : Mechanical Engineering

M Zamani ¹ ( Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran )
A Davar ² ( Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran )
M Heydari Beni ³ ( Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran )
J Eskandari Jam ⁴ ( Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran )

تاریخ دریافت : 1401/01/08 تاریخ پذیرش : 1401/03/06 تاریخ انتشار : 1401/06/10

کلید واژه: Composite conical shells, Grid-stiffened, Dynamic Analysis,

چکیده مقاله :

In this study, the transient dynamic analysis of grid-stiffened composite conical shells is discussed. The transient dynamic response of the composite conical shell with simply supported boundary conditions under the lateral impact load, which is applied extensively and uniformly on a certain surface, is obtained using the convolution integral and based on the method of addition of modes. The validation of the obtained results has been done with the help of references and ABAQUS finite element software. The effects of various parameters such as fiber angle, geometric ratios, type, etc. have been investigated in forced vibrations. Finally, the effect of reinforcing the conical shell with the help of grid-stiffened structures has been studied.

منابع و مأخذ:

1.  Dobyns A. L., 1981, Analysis of simply-supported orthotropic plates subject to static and dynamic load, AIAA Journal 19: 642650.


2.  Ramkumar R. L., Chen P. C., 1983, Low-velocity impact response of laminated plates, AIAA Journal 21: 1448-1452.


3.  Cederbaum G., Heller R. A., 1989, Dynamic deformation of orthotropic cylinders, Transactions of the ASME, Journal of Pressure Vessel Technology 11: 97-101.


4.  Reddy J.N., Khdeir A.A., 1989, Dynamic response of cross-ply laminated shallow shells according to a refined shear deformation theory, The Journal of the Acoustical Society of America 85: 2423-2431.


5.  Davar A., 2009, Analysis and optimization of laminated composite circular cylindrical shell subjected to compressive axial and transverse transient dynamic loads, Thin-Walled Structures 47: 970-983.


6.  Davar A., 2010, Dynamic response of pre-stressed fiber metal laminate (FML) circular cylindrical shells subjected to lateral pressure pulse loads, Composite Structures 92: 1308-1317.


7.  Jaunky N., Knight N.F., Ambur D.R., 1998, Optimal design of general stiffened composite circular cylinders for global buckling with strength constraints, Composite Structures 41: 243-252.


8.  Wang J.T.S., Hsu T.M., 1995, Discrete analysis of stiffened composite cylindrical shells, AIAA Journal 23: 1753-1761.


9.  Kidane S., Li G., Helms J., Pang S., Woldesenbet E., 2003, Buckling load analysis of grid stiffened composite cylinders, CompositesPart B: Engineering 34: 1-9.


10.  Wodesenbet E., Kidane S., Pang S., 2003, Optimization for buckling loads of grid stiffened composite panels, Composite Structures 60: 159-169.


11.  Yazdani M., 2009, Analytical and Experimental Buckling Analysis of Grid Stiffened Composite Shells under Axial Loading, Ph.D. Dissertation, Tarbiat Modares University, Iran.


12.  Yazdani M., Rahimi G.H., Afaghi Khatibi A., Hamzeh S., 2009, An experimental investigation into the buckling of GFRP stiffened shells under axial loading, Scientific Researchand Essays  4: 914-920.


13.  Yazdani M., Rahimi G.H., 2010, The effects of helical ribs’ number and grid types on the buckling of thin-walled GFRP stiffened shells under axial loading, Journal of Reinforced Plastics and Composites 29: 2568-2575.


14.  Yazdani M., Rahimi G.H., 2011, The behavior of GFRP-stiffened and -unstiffened shells under cyclic axial loading and unloading, Journal of Reinforced Plastics and Composites 30: 440-445.


15.  Rahimi G.H., Zandi M., Rasouli S.F., 2013, Analysis of the effect of stiffener profile on buckling strength in composite isogrid stiffened shell under axial loading, Aerospace Scienceand Technology 24: 198-203.


16.  Hemmatnezhad M., 2014, On the free vibrations of grid-stiffened composite cylindrical shells, Acta Mechanica 225: 609-623.


17.  Davar A., 2003, Vibrations of Composite Cylindrical Shells, M.Sc. Thesis, Khajeh Nasir al-Din Tusi University of Technology.


18.  Yong-shin L., Ki-Du L., 1997, on the dynamic response of laminated circular cylindrical shell under impulse loads, Computers & Structures 63(1): 149-157.


19.  Rao S.S., 1985, Mechanical Vibration.


20.  Thomson W.T., 1988, Theory of Vibration with Application, Englewood Cliffs.