scholarly journals Hybrid Global Matrix/Local Interaction Simulation Approach for Wave Propagation in Composites

AIAA Journal ◽  
2015 ◽  
Vol 53 (2) ◽  
pp. 379-393 ◽  
Author(s):  
Matthew B. Obenchain ◽  
Kalyan S. Nadella ◽  
Carlos E. S. Cesnik
Keyword(s):  
Wave Propagation ◽  
Local Interaction ◽  
Simulation Approach ◽  
Interaction Simulation

scholarly journals Rescaled Local Interaction Simulation Approach for Shear Wave Propagation Modelling in Magnetic Resonance Elastography

2016 ◽  
Vol 2016 ◽  
pp. 1-12
Author(s):  
Z. Hashemiyan ◽  
P. Packo ◽  
W. J. Staszewski ◽  
T. Uhl
Keyword(s):  
Wave Propagation ◽  
Magnetic Resonance ◽  
Shear Wave ◽  
Soft Tissues ◽  
Biological Tissues ◽  
Magnetic Resonance Elastography ◽  
Local Interaction ◽  
Simulation Approach ◽  
Interaction Simulation ◽  
Propagation Modelling

Properties of soft biological tissues are increasingly used in medical diagnosis to detect various abnormalities, for example, in liver fibrosis or breast tumors. It is well known that mechanical stiffness of human organs can be obtained from organ responses to shear stress waves through Magnetic Resonance Elastography. The Local Interaction Simulation Approach is proposed for effective modelling of shear wave propagation in soft tissues. The results are validated using experimental data from Magnetic Resonance Elastography. These results show the potential of the method for shear wave propagation modelling in soft tissues. The major advantage of the proposed approach is a significant reduction of computational effort.

Local Interaction Simulation Approach vs. Finite Element Modelling for Fault Detection in Medical Ultrasonic Transducer

2013 ◽  
Vol 588 ◽  
pp. 157-165 ◽  
Author(s):  
Z. Hashemiyan ◽  
Pawel Packo ◽  
W. Kochański ◽  
Wieslaw Jerzy Staszewski ◽  
Tadeusz Uhl ◽  
...  
Keyword(s):  
Fault Detection ◽  
Finite Element Modelling ◽  
Ultrasonic Transducer ◽  
Poor Quality ◽  
Local Interaction ◽  
Ultrasonic Transducers ◽  
Medical Applications ◽  
Simulation Approach ◽  
Element Modelling ◽  
Interaction Simulation

Ultrasonic transducers are extensively used in medical applications. Any deterioration in their performance can lead to poor quality images. The Local Interaction Simulation Approach (LISA) and Finite Elements are used to model medical ultrasonic transducers. The entire analysis attempts to find out whether the LISA-based methodology could be used for transducer modelling in fault detection applications based on in-air reverberation patterns.

Local interaction simulation approach to modelling nonclassical, nonlinear elastic behavior in solids

2003 ◽  
Vol 113 (6) ◽  
pp. 3049 ◽  
Author(s):  
Marco Scalerandi ◽  
Valentina Agostini ◽  
Pier Paolo Delsanto ◽  
Koen Van Den Abeele ◽  
Paul A. Johnson
Keyword(s):  
Local Interaction ◽  
Elastic Behavior ◽  
Simulation Approach ◽  
Interaction Simulation ◽  
Nonlinear Elastic
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