Acoustic radiation force. Part I: Finite element modeling for elastic objects

2013 ◽  
Vol 134 (5) ◽  
pp. 4109-4109
Author(s):  
Ahmad T. Abawi ◽  
Ivars Kirsteins
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Element Modeling

Acoustic radiation force creep-recovery: Theory and finite element modeling

2013 ◽  
Author(s):  
Carolina Amador ◽  
Bo Qiang ◽  
Matthew W. Urban ◽  
Shigao Chen ◽  
James F. Greenleaf
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Creep Recovery ◽  
Element Modeling ◽  
Force Creep

7.5 USING FINITE ELEMENT ANALYSIS TO MODEL ACOUSTIC RADIATION FORCE IMAGING (ARFI) OF CAROTID ARTERY PLAQUES

2011 ◽  
Vol 5 (4) ◽  
pp. 147
Author(s):  
J.R. Doherty ◽  
D.M. Dumont ◽  
M.L. Palmeri ◽  
G.E. Trahey
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Carotid Artery ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Element Analysis

scholarly journals A finite-element method model of soft tissue response to impulsive acoustic radiation force

2005 ◽  
Vol 52 (10) ◽  
pp. 1699-1712 ◽  
Author(s):  
M.L. Palmeri ◽  
A.C. Sharma ◽  
R.R. Bouchard ◽  
R.W. Nightingale ◽  
K.R. Nightingale
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Soft Tissue ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Tissue Response ◽  
Finite Element Method Model ◽  
Soft Tissue Response ◽  
Method Model

Efficient finite element modeling of acoustic radiation forces on inhomogeneous elastic particles

2012 ◽  
Author(s):  
Puja Mishra ◽  
Peter Glynne-Jones ◽  
Rosemary J. Boltryk ◽  
Martyn Hill
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Acoustic Radiation ◽  
Element Modeling ◽  
Radiation Forces ◽  
Elastic Particles

Dynamic Analysis of Soft Tissue Viscoelasticity Under Ultrasonic Radiation Force Using FEM

2007 ◽  
Author(s):  
Megan L. Kogit ◽  
Baoxiang Shan ◽  
Assimina A. Pelegri
Keyword(s):  
Finite Element ◽  
Soft Tissue ◽  
Dynamic Analysis ◽  
Young’S Modulus ◽  
Acoustic Radiation ◽  
Young's Modulus ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Damping Coefficient ◽  
Response Data

We have developed a solid mechanics model of nearly incompressible, viscoelastic soft tissue for finite element analysis (FEA) in MATLAB 7.2. Newmark’s method was used to solve the finite element equations of motion for our model. The solution to our dynamic problem was validated with a transient dynamic analysis in ANSYS 10.0. We further demonstrated that our MATLAB FEA qualitatively agrees with those results observed with acoustic radiation force methods on soft tissues and tissue-mimicking materials. We showed that changes in Young’s modulus and the damping coefficient affect the displacement amplitude and phase shift of the response data in the same manner: An increase in Young’s modulus or damping coefficient decreases both the displacement amplitude and response lag. Future work on this project will involve frequency analysis on response data and studying the initial transient region to help uncouple the effects of Young’s modulus and damping coefficient on response characteristics. This will get us one step closer to being able to explicitly determine Young’s modulus and the damping coefficient from the temporal response data of acoustic radiation force methods, which is the ultimate goal of our project.

scholarly journals Acoustic radiation force impulse imaging of vulnerable plaques: a finite element method parametric analysis

2013 ◽  
Vol 46 (1) ◽  
pp. 83-90 ◽  
Author(s):  
Joshua R. Doherty ◽  
Douglas M. Dumont ◽  
Gregg E. Trahey ◽  
Mark L. Palmeri
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parametric Analysis ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Vulnerable Plaques ◽  
Element Method

scholarly journals Analysis of multiple shear wave modes in a nonlinear soft solid: Experiments and finite element simulations with a tilted acoustic radiation force

2020 ◽  
Vol 107 ◽  
pp. 103754 ◽  
Author(s):  
Annette Caenen ◽  
Anna E. Knight ◽  
Ned C. Rouze ◽  
Nick B. Bottenus ◽  
Patrick Segers ◽  
...  
Keyword(s):  
Finite Element ◽  
Shear Wave ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Finite Element Simulations ◽  
Acoustic Radiation Force ◽  
Wave Modes

FINITE ELEMENT MODELING OF ACOUSTICS USING HIGHER ORDER ELEMENTS PART II: TURBOFAN ACOUSTIC RADIATION

2004 ◽  
Vol 12 (03) ◽  
pp. 431-446 ◽  
Author(s):  
EIVIND LISTERUD ◽  
WALTER EVERSMAN
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Acoustic Pressure ◽  
Acoustic Radiation ◽  
Near Field ◽  
Element Formulation ◽  
Computational Accuracy ◽  
Element Modeling ◽  
Quadratic Performance ◽  
Serendipity Elements

A study is made of computational accuracy and efficiency for finite element modeling of acoustic radiation in a nonuniform moving medium. For a given level of accuracy for acoustic pressure, cubic serendipity elements are shown to require a less dense mesh than quadratic elements. These elements have been applied to the near field of inlet and aft acoustic radiation models for a turbofan engine and they yield considerable reduction in the dimensionality of the problem without sacrificing accuracy. The results show that for computation of acoustic pressure the cubic element formulation model is superior to the quadratic. Performance gains in computation of acoustic potential are not as significant. In the external radiated field, improved convergence using cubic serendipity elements is shown by comparison of contours of constant pressure magnitude.

Sign in / Sign up

Export Citation Format

Share Document