scholarly journals IDENTIFICATION OF PARAMETERS OF MODELS OF NONLINEAR DEFORMATION OF ISOTROPIC AND COMPOSITE MATERIALS ON THE BASIS OF CALCULATIONS AND EXPERIMENTS AIMED AT ANALYZING THE DYNAMIC BEHAVIOR OF CYLINDRICAL METAL-PLASTIC SHELLS

2015 ◽  
Vol 56 (6) ◽  
Keyword(s):  
Composite Materials ◽  
Dynamic Behavior ◽  
Nonlinear Deformation ◽  
Identification Of Parameters ◽  
Cylindrical Metal

Dynamic Behavior of Aircraft Wings Modeled as Doubly-Tapered Composite Thin-Walled Beams

1999 ◽  
Author(s):  
Sungsoo Na ◽  
Liviu Librescu
Keyword(s):  
Composite Materials ◽  
Free Vibration ◽  
Dynamic Response ◽  
Dynamic Behavior ◽  
Transverse Shear ◽  
Dynamical Behavior ◽  
Time Dependent ◽  
Aircraft Wings ◽  
Helicopter Blades ◽  
Thin Walled

Abstract A study of the dynamical behavior of aircraft wings modeled as doubly-tapered thin-walled beams, made from advanced anisotropic composite materials, and incorporating a number of non-classical effects such as transverse shear, and warping inhibition is presented. The supplied numerical results illustrate the effects played by the taper ratio, anisotropy of constituent materials, transverse shear flexibility, and warping inhibition on free vibration and dynamic response to time-dependent external excitations. Although considered for aircraft wings, this analysis and results can be also applied to a large number of structures such as helicopter blades, robotic manipulator arms, space booms, tall cantilever chimneys, etc.

Structural and Dynamic Behavior of Pretwisted Rods and Beams

1991 ◽  
Vol 44 (12) ◽  
pp. 483-515 ◽  
Author(s):  
Aviv Rosen
Keyword(s):  
Composite Materials ◽  
Dynamic Analysis ◽  
Dynamic Behavior ◽  
Static Analysis ◽  
High Temperatures ◽  
The Other ◽  
Present Review ◽  
Structural Elements ◽  
Coupling Effects ◽  
Very High

Because of being important structural elements in many engineering applications on one hand, and presenting inherent complicated coupling effects on the other hand, pretwisted rods have attracted the interest of many researchers. During the years, as a result of engineering breakthroughs, like the introduction of composite materials or operating at very high temperatures, the problems associated with pretwisted rods became more complicated. The present review will present the research during the last fifty years. It will be divided into three main subjects: static analysis, dynamic analysis and stability problems. The review will concentrate on the structural and dynamic aspects of pretwisted rods. Derivations of models and solution techniques will be addressed.

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