where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

215 views
Technical Discussions
Vasilis Protopappas
Vasilis Protopappas
03:24 Mar-18-2004
Finite Element modelling of ultrasound propagation

Searching the literature (for at least the past year), I was suprised at finding only a limited number of papers dealing with Finite Element modelling of ultrasound propagation (through solid media). These include "Modelling elastic wave propagation in waveguides with the FEM", F. Moser et al., NDT&E Int., vol. 32, 1999, "FE modelling of ultrasound...", R. Hill et al., Ultrasonics, 2004 (online) and a couple of additional papers. (There are some additional works using the finite differences method (utilizing the WAVE 2000 software) in 2D models).These FE papers claim that they came up with very promising results.

I am a little confused because I want to work in this area using FE in 3D models. My questions are:
a) does anyone know if there are some reasons for not employing FE to simulate ultrasound propagation (e.g. inability of FE to model such problems, more disadvantages than advantages. etc.)?
b) are there more papers in the literature than I have found?
c) ultrasound excitation (in contactapplication) should be regarded as a force boundary condition or prescribed displacement at the transducer/medium interface (my opinion is the former case).

Thank you very much, in advance, for your feedback

Vassilis Protopappas.


 
 Reply 
 

Product Spotlight

HARDNESS TESTER TKM-459CE combi

TKM-459CE combi applies 2 methods of hardness control: UCI and Leeb. It provides high-accuracy tes
...
ting of metals and alloys as well as items of different sizes and configurations, their hardened layers and galvanic coatings. Device represents results in HB, HRC, HV and others. Shock-, dust- and water-proof housing with intuitive software make this gauge easy to use in all working conditions.
>

Cygnus 6+ PRO Multi-Mode Ultrasonic Thickness Gauge

The Cygnus 6+ PRO thickness gauge is the most advance gauge within the Cygnus range with key featu
...
res including: comprehensive data logging; A-scan and B-scan display; manual gain control; Bluetooth connectivity; and much more. With its unique dual display and three measuring modes (Multiple-Echo, Echo-Echo and Single-Echo), this surface thickness gauge offers maximum versatility for inspections.
>

Eddy Current inspection : RotoETscan Rotating Head

The rotating head RotoETscan detects the presence of longitudinal surface or sub surface defects a
...
t high speed. The rotating head is often installed directly on the production line. It is generally dedicated to the control of long products such as tubes, bars and wires, made of ferrous or non-ferrous material. It can also be used for inspection of small parts (billets).
>

Combination of Digital Image Correlation and Thermographic Measurements

The combination of measuring results from the digital image correlation (ARAMIS, DIC) and temperat
...
ure measuring data from infrared cameras permits the simultaneous analysis of the thermal and mechanical behavior of test specimens in the materials and components testing field.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window