Theory of anisotropic thin-walled closed-cross-section beams

V Berdichevsky, E Armanios, A Badir - Composites Engineering, 1992 - Elsevier
A variationally and asymptotically consistent theory is developed in order to derive the
governing equations of anisotropic thin-walled beams with closed sections. The theory is …

Design and analysis trends of helicopter rotor systems

I Chopra - Sadhana, 1994 - Springer
To overcome many of the problems associated with conventional articulated rotor systems,
new rotor systems are being contemplated. In this paper, the state-of-art technology of …

[图书][B] Experimental and analytical investigation of dynamic characteristics of extension-twist-coupled composite tubular spars

RC Lake - 1993 - books.google.com
The results from an in-house study aimed at improving the dynamic and aerodynamic
characteristics of composite rotor blades through the use of extension-twist elastic coupling …

[图书][B] Unsteady vortex lattice aerodynamics for rotor aeroelasticity in hover and in forward flight

KM Yoo - 1990 - search.proquest.com
An unsteady vortex lattice method has been applied to the rotor aeroelasticity problem in
hover and in forward flight. This procedure is an improvement over the classical two …

[PDF][PDF] Analysis of delamination related fracture processes in composites

EA Armanios - 1988 - ntrs.nasa.gov
Delamination related fracture processes in composite materials are discussed. Thermal and
moisture influences on the free-edge delamination of laminated composites, fracture …