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Three-Dimensional Blood Flows Associated with Intra-Aortic Balloon Counterpulsation
Three-dimensional blood flow processes associated with intra-aortic balloon counterpuslation (IABP) are calculated using a Cray YMP supercomputer. The mathematical model incorporates a...

Effects of Artificial Heart Pumping on Hemorheology
Alterations in hemorheology were studied in 19 patients supported by the Jarvik-7 total artificial heart (TAH) anywhere from 1 to 48 days as a bridge-to-cardiac transplantation. Abnormally...

Structural Aspects of Femoral Head Osteonecrosis
Orthopaedic management of early stage osteonecrosis (ON) of the femoral head is aimed at delaying or preventing collapse of structurally weakened regions of repairing dead bone. The advent...

Contact Problems in Cell Adhesion
Adhesion of biological cells plays an important role in many physiological processes. For instance, the adhesion of killer T-lymphocyte to its target cell is an essential step in cytolysis,...

Computational Mechanics: Constitutive Modeling and Performance Analysis
The availability of supercomputers in the 80's has brought about a revolution in the analysis and design of complex structures. Parallel with this, computers have played a...

Optical Performance Predictions and Testing of a Composite Reflector
This paper describes the structural analysis and the experimental performance evaluation of advanced composite mirror designs for future NASA astrophysics missions. An interdisciplinary...

Modelling of Tubes with Large Plastic Deformation
A thin circular tube laterally compressed between two rigid plates is investigated for its load(P)-displacement(?) behaviour. The moving hinge concept yields a good prediction compared...

Using a Linearized Yield Surface in Dynamic Analysis
This paper describes an application of the finite element method to dynamic analysis of systems which exhibit material nonlinearity. A time history approach is used with a central difference...

Curvature Effects on the Deflection and Vibration of Cross-Ply Shallow Shells
The use of high performance materials is becoming increasingly significant in structures subjected to severe loading conditions. Effects of curvature on the stiffness characteristics of...

Poisson Instability of Laminated Composite Plates
The paper considers the uniaxial buckling of rectangular, anisotropic composite laminates with in-plane restrained unloaded edges where Poisson's effect is predominant to...

Buckling of Lamianted Plates Using h-p Finite Strips
The paper presents a computationally efficient alternative to the finite element method for the initial buckling analysis of long, shear-deformable composite laminates. In addition the...

Localized Collapse of Shells of Revolution
A local-global methodology is presented to treat the problems of localized collapse of shells of revolution. The strategy consists of employing two dimensional general shell elements in...

Methodology for Developing an Engineering Solution for Web Crippling
This paper describes the methodology used to develop an engineering solution for web crippling of aluminum trapezoidal sections. The development has two steps. The functional form for...

Analysis of Delamination Onset and Growth in Curved Laminates
This paper details an analysis to characterize delamination onset and growth from a matrix crack in a curved composite laminate. Finite element analysis was used to determine values of...

Analysis of a CMC Compact Tension Specimen
A cohesive force model is applied to study the stability of fiber failure in a ceramic matrix composite compact tension specimen. By controlling the length of the bridged crack results...

Interlaminar Fracture Toughness Test: Traditional and Modified
For brittle, transversely isotropic, composite materials we have developed an alternative Mode II interlaminar fracture toughness test (G_IIc) that...

Postbuckling Analysis of Composite Stiffeners under Uniaxial Compression
This paper presents an analytical and experimental study conducted for postbuckling of I-section stiffeners. A stability analysis was carried out to determine postbuckling response of...

Characterizing Mode I Fatigue Delamination of Composite Materials
Evaluation of two techniques to characterize fatigue delamination using the double cantilever beam (DCB) specimen are presented. The two techniques were the delamination growth onset (G-N)...

Characterization of Acoustic Emission Signals
Separation of crack growth signals is of fundamental importance for detecting, locating and determining the significance of an internal flaw using acoustic emission techniques. An analytical...

Optimum Design of Laminated Metal Matrix Composites
With the increased demand for high-strength, lightweight materials that function successfully in high temperature environments, the effective development of metal matrix composites has...

 

 

 

 

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