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A comparison of displacement and hybrid stress models for two dimensional finite element analysis
(Virginia Polytechnic Institute and State University, 1987)
An eight-node isoparametric hybrid stress element is developed for two dimensional plane stress and plane strain analyses. The assumed stresses are represented by 18 unknown parameters. An eight-node isoparametric displacement ...
Navier-Stokes prediction of the three dimensional flowfield of jets in a crossflow using the finite element method
(Virginia Polytechnic Institute and State University, 1988)
A Prandtl-type eddy viscosity model including the first-order effect of turbulence structure has been developed to deal with curved free-shear flows. The model is generalized to account for the effect of arbitrary cross-section ...
A finite element study of bending stress variation in meshed spur gear pairs
(Virginia Polytechnic Institute and State University, 1987)
A study of the bending stresses in a pair of meshed spur gears using the finite element method is presented. The models analyzed were in the shape of a circular gear with five teeth or a five-tooth rack. A unit torque (1 ...
Vibrations of an isolated wind turbine blade using the finite element method
(Virginia Polytechnic Institute and State University, 1986)
The finite element method is applied to an isolated and twisted wind turbine blade which is rotating in a vertical plane to determine its structural dynamic characteristics. The equations of motion are formulated for a ...
Synthesis of a near-optimum finite element mesh
(Virginia Polytechnic Institute and State University, 1982)
A finite element program post-processor is developed to help synthesize a near-optimum mesh. This post-processor displays, interactively, six different energy functions, along with the usual stress functions. The six energy ...
A finite element, Navier-Stokes study of the confined, laminar flow over a downstream facing step
(Virginia Polytechnic Institute and State University, 1984)
The two-dimensional, confined, laminar flow over a downstream facing step was studied using a finite element, Navier-Stokes equation solver. The weak form of the stationary, incompressible Navier-Stokes equations in primitive ...
Finite element solution of the Navier-Stokes equations for 3-D turbulent free shear flows
(Virginia Polytechnic Institute and State University, 1984)
A half-equation model of turbulence has been developed to described the eddy viscosity distribution of two and three-dimensional turbulent free shear flows. The model is derived by integrating the parabolized transport ...
Effect of in situ stresses on the stress analysis in soils by the finite element method
(Virginia Polytechnic Institute and State University, 1982)
The effect of in situ stresses on the stresses and displacements in soils was investigated by the finite element method. The soil was considered as a nonlinear elastic media having a hyperbolic stress strain relationship. ...
Edge caps for reinforcing composite laminates
(Virginia Polytechnic Institute and State University, 1985)
A method for reinforcing the free edges of a symmetric 11-ply graphite-epoxy laminate by adding a one-layer Kevlar-epoxy edge cap is studied. Generalized plane strain finite element analysis is used to predict that ...
A finite element analysis of adhesively bonded composite joints including geometric nonlinearity, nonlinear viscoelasticity, moisture diffusion and delayed failure
(Virginia Polytechnic Institute and State University, 1987)
A two-dimensional finite-element computational procedure is developed for the accurate analysis of the strains and stresses in adhesively bonded joints. The large displacements and rotations experienced by the adherends ...