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Large Deformation Analysis of Cardiac Structures
The finite element technique can be used to simulate the response of the cardiac structures that have complex shape and geometry and nonlinear material properties. This paper enumerates...

Three-Dimensional Finite Element Analysis of Stress and Activation in the Heart
A finite element (FE) method has been developed for three-dimensional (3D) analysis of stress distributions and activation patterns in the left and right ventricles of the canine heart....

Non-Linear Passive Elastic Properties of the Left Ventricular Myocardium: Application of Finite Element Analysis to 3-D Geometry Obtained from Ultrasound Images
A finite element (FE) analysis and an optimization algorithm were employed to assess the nonlinear passive elastic properties of left ventricular myocardium in a canine mode. The three-dimensional...

Finite Analytic Explicit Scheme for Viscous Burgers' Equation
Burgers' equation is numerically analyzed by finite analytic method. The basic idea of finite analytic method is to incorporate the analytic solution of partial differential...

Finite Element Stress Analysis of a Spinal Segment
A large number of factors need to be determined to understand the biomechanics of a surgical procedure about the lumbar spine. Some of these factors are amenable to experimental investigations...

Biomechanical Model of a Lumbar Intervertebral Joint?A System Approach
This study was conducted to determine the forces sustained by the lumbar ligaments under flexion-compression using a two-dimensional equilibrium model. The lumbar motion segment was modeled...

Biomechanics of Local Articular Incongruities
Abnormalities of intra-articular contact near sites of local surface incongruity are frequently associated with secondary osteoarthrosis. We here review a series of experimental and computational...

Normal and Tangential Contact of Layered Spheres as Models of Joint Contact
The causes of cracking in degenerating cartilage are examined using analytical models of layered elastic spheres in normal and tangential contact. Vertical surface and deep radial cracks...

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,...

A Two-Dimensional Model of Airbag Deployment
An interactive program was developed to simulate the unfolding and deploying process of a driver side airbag in the sagittal plane. The airbag was represented by a series of nodes. We...

Dynamic Responses of the Precision Segmented Reflector
This paper concerns a structural simulation effort aimed at studying dynamic responses of the Precision Segmented Reflector when subjected to seismic disturbances. The study results indicated...

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...

Structural Responses in Mechatronics
The design analysis of a circular cylinder, ring-stiffened intermittently, subject to conducting flow, is presented herein (Fan, 1986 & 1990). This composite cylinder is made of...

Vibration Suppression Through Liquid Oscillations
A passive liquid-motivated control system is proposed to suppress and reduce the lateral drift of high-rise buildings. The vibration reduction mechanism relies on liquid motion to alter...

Dynanmic Stability and Seismic Response of Damped Beams in the Presence of Follower Forces
The dynamic stability and the seismic response of general beams are examined, by discretizing the structure to a set of rigid bars, linked together by means of elastic constraints (Cells...

Comparative Time Domain Analysis of Some Available Analytical and Empirical Expressions for the Spatial Variability of Seismic Ground Motions
Simulations in space and time based on models for the spatial variability of seismic ground motions are generated. Displacement time histories are simulated through the spectral representation...

R/C Columns Under Axial and Bi-Directional Lateral Loads
The reliability of a model, called a multi-spring model, was examined to simulate the observed response of reinforced concrete columns subjected to varying high axial loads and bi-directional...

Elasto-Plastic Analysis of Frames with Bending Moments and Axial Force Interaction
A menu driven computer program has been developed for Nonlinear analysis of plane framed structures. This program utilizes the stiffness method. Only material nonlinearity has been considered....

Dynamic Response Analysis of Three-Dimensional Beam-Columns
This paper describes a methodology for dynamic response analysis of three-dimensional beam-columns, whereby an elastic force's axial-flexural interaction is modeled with stability...

Forced Vibration Analysis of Frame Structures Subjected to Support Movements by the Distributed Mass Method
The dynamic response of frame structures subjected to support movements as a time varying excitation is analyzed by the distributed mass method. The continuous nature of a structure can...

 

 

 

 

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