Results 241 to 250 of about 45,405 (265)
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Penetration and Perforation of Composite Sandwich Panels by Hemispherical and Conical Projectiles
Journal of Pressure Vessel Technology, 1998The results of penetration and perforation tests carried out on composite sandwich panels with GRP skins and PVC foam cores using hemispherical-ended and conical-nosed indenters/projectiles under quasi-static, drop-weight, and ballistic impact conditions, with impact velocities up to 305 m/s, are described. Load-displacement characteristics under quasi-
T. Y. Reddy +3 more
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Journal of Sound and Vibration, 1999
This paper presents a computational investigation on the effects of subtended and vertex angles on the free vibration characteristics of open conical shell panels. Unlike the conventional approximation using a rectangular or cylindrical co-ordinate system, this analysis adopts a natural conical co-ordinate system so that any approximation in geometry ...
C.W. Lim, S. Kitipornchai
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This paper presents a computational investigation on the effects of subtended and vertex angles on the free vibration characteristics of open conical shell panels. Unlike the conventional approximation using a rectangular or cylindrical co-ordinate system, this analysis adopts a natural conical co-ordinate system so that any approximation in geometry ...
C.W. Lim, S. Kitipornchai
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Flutter of functionally graded open conical shell panels subjected to supersonic air flow
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2012In this article, analysis of supersonic flutter of functionally graded open conical shell panels with clamped and simply supported edges is presented. The aeroelastic stability problem is formulated based on first-order shear deformation theory as well as classical shell theory and solved using Galerkin method.
Ali Davar, Hassan Shokrollahi
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Higher order static analysis of truncated conical sandwich panels with flexible cores
Steel and Composite Structures, 2015A higher order analytical solution for static analysis of a truncated conical composite sandwich panel subjected to different loading conditions was presented in this paper which was based on a new improved higher order sandwich panel theory. Bending analysis of sandwich structures with flexible cores subjected to concentrated load, uniform distributed
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Improved Flat Frequency Response of Conical Shellular Metamaterial‐Enabled Flat Panel Loudspeaker
Advanced Materials TechnologiesAbstractA piezoelectric flat panel loudspeaker operates by utilizing a piezoelectric film actuator to vibrate a diaphragm, offering advantages in miniaturization, embedding, and spatial efficiency. However, achieving high sound pressure levels (SPL) at low frequencies and maintaining a flat frequency response remains challenging.
Hyunhee Kwon +3 more
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Vibration analysis of conical panels using the method of discrete singular convolution
Communications in Numerical Methods in Engineering, 2006AbstractA discrete singular convolution (DSC) free vibration analysis of conical panels is presented. Regularized Shannon's delta kernel (RSK) is selected as singular convolution to illustrate the present algorithm. In the proposed approach, the derivatives in both the governing equations and the boundary conditions are discretized by the method of DSC.
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Large Amplitude Nonlinear Heat-Induced Vibrations of Temperature-Dependent FGM Conical Panels
International Journal of Structural Stability and DynamicsThis research deals with the large amplitude vibrations in a conical panel under the action of sudden temperature elevation. The conical panel is made of functionally graded materials where properties vary through the thickness direction. All of the properties are considered to be temperature-dependent for the constituents.
Seyed Ebrahim Seyedi, Mostafa Mirzaei
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International Journal of Structural Stability and Dynamics
This paper is the first to develop a meshless thermodynamic model with circumferentially variable dimensions to analyze the thermal-vibration mechanisms of typical functionally graded (FG) panel-type structures, mainly including conical, cylindrical, and annular panels.
Xuanzhi Shi +4 more
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This paper is the first to develop a meshless thermodynamic model with circumferentially variable dimensions to analyze the thermal-vibration mechanisms of typical functionally graded (FG) panel-type structures, mainly including conical, cylindrical, and annular panels.
Xuanzhi Shi +4 more
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Non-Linear Buckling Response of a Conical Shell Panel
Civil-Comp Proceedings, 2009G.T. Michaltsos +2 more
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