International Journal of Advanced Materials Research
Articles Information
International Journal of Advanced Materials Research, Vol.1, No.2, May 2015, Pub. Date: May 7, 2015
Clamped Saddle Shells of Laminated Composites: Effect of Cutout on Natural Frequency and Mode Shapes
Pages: 25-31 Views: 1907 Downloads: 495
[01] Sarmila Sahoo, Department of Civil Engineering, Heritage Institute of Technology, Kolkata, India.
Clamped saddle shells made of laminated composite materials in presence of stiffeners and cutouts are analyzed employing the eight-noded curved quadratic isoparametric element for shell with a three noded beam element for stiffener formulation. Free vibration problem of stiffened saddle shells with different size and position of the cutouts with respect to the shell centre are examined to find natural frequency and mode shapes of stiffened shells and arrive at some conclusions useful to the designers. The results are further analyzed to suggest guidelines to select optimum size and position of the cutout with respect to shell centre.
Clamped Saddle Shell, Laminated Composite, Cutout, Natural Frequency, Mode Shape
[01] Chao, C. C., & Tung, T. P. (1989). ”Step pressure and blast response of clamped orthotropic hemispherical shells”. International Journal of Impact Engineering, 8(3), 191-207.
[02] Liew, K. M., & Lim, C. W. (1995). ”Vibration behaviour of doubly-curved shallow shells of curvilinear planform”. ASCE Journal of Engineering Mechanics, 121(12), 1277-1283.
[03] Chakravorty, D., Sinha, P. K., & Bandyopadhyay, J. N. (1995). ”Free vibration analysis of point supported laminated composite doubly curved shells- a finite element approach”. Computers and Structures, 54(2), 191-207.
[04] Sathyamoorthy, M. (1995). ”Nonlinear vibrations of moderately thick orthotropic shallow spherical shells”. Computers and Structures, 57(1), 59-65.
[05] Gautham, B. P., & Ganesan, N. (1997). ”Free vibration characteristics of isotropic and laminated orthotropic spherical caps”. Journal of Sound and Vibration, 204(1), 17-40.
[06] Wang, X., Lu, G., & Guillow, S. R. (2002). “Stress wave propagation in orthotropic laminated thick-walled spherical shells”. International Journal of Solids and Structures, 39, 3027-4037.
[07] Lellep, J., & Hein, H. (2002). “Optimization of clamped plastic shallow shells subjected to initial impulsive loading.” Engineering Optimization, 34, 545-556.
[08] Dai, H. L., & Wang, X. (2005). “Stress wave propagation in laminated piezoelectric spherical shells under thermal shock and electric excitation.” European Journal of Mechanics A/Solids, 24, 263-276.
[09] Ganapathi, M. (2007). “Dynamic stability characteristics of functionally graded materials shallow spherical shells.” Composite Structures, 79, 338-343.
[10] Park, T., & Lee, S. Y. (2009). “Parametric instability osf delaminated composite spherical shells subjected to in-plane pulsating forces”. Composite Structures, 91, 196-204.
[11] Qatu, M. S., Sullivan, R. W., & Wang, W. (2010). ”Recent research advances on the dynamic analysis of composite shells:2000-2009”. Composite Structures, 93, 14-31
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