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 -

2632 views
Technical Discussions
Graham Stephen
Graham Stephen
06:10 Mar-09-1999
Passive UT of steel

My group is involved with developing techniologies for process
monitoring, in particular, for product quality. I am looking
for information and/or references to materials that discuss methods
to calculate UT signals that can be expected from stressing steel
in tensile or compressive tests. Ideally, this would be a passive
technique, however, pulse-echo could also be used. Any assitance
in this regard would be appreciated.


 
 Reply 
 
Godfrey Hands
Consultant,
PRI Nadcap, United Kingdom, Joined Nov 1998, 307

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
307
06:33 Mar-09-1999
Re: Passive UT of steel
: My group is involved with developing techniologies for process
: monitoring, in particular, for product quality. I am looking
: for information and/or references to materials that discuss methods
: to calculate UT signals that can be expected from stressing steel
: in tensile or compressive tests. Ideally, this would be a passive
: technique, however, pulse-echo could also be used. Any assitance
: in this regard would be appreciated.

Resonant Ultrasound Inspection has shown that resonances are affected by stresses within components. This means that if we can measure the eigen frequencies of a structure or component whilst unstressed, then stress it, we will see a difference in some of the resonances.
By calibrating with such a technology, we should be able to "measure" these stresses.
Please contact me if you think this approach could provide a solution to your application.


 
 Reply 
 
Michael H. Dalichow
Michael H. Dalichow
07:12 Mar-09-1999
Re: Passive UT of steel
The fraunhofer-Institute Nondestructive Testing has developed Process Integrated Nondestructive Techniques (PINT)to measure and/or monitor residual or inherent stress. For further information please contact Dr. Werner Theiner at theiner@izfp.fhg.de.


 
 Reply 
 
Michael H. Dalichow
Michael H. Dalichow
07:13 Mar-09-1999
Re: Passive UT of steel
The Fraunhofer-Institute Nondestructive Testing (IZFP)has developed Process Integrated Nondestructive Techniques (PINT)to measure and/or monitor residual or inherent stress. For further information please contact Dr. Werner Theiner at theiner@izfp.fhg.de.


 
 Reply 
 

Product Spotlight

A1525 SOLO

A1525 Solo – the most compact and affordable TMF unit with two phased array transducers and 3D v
...
isualization and analysis software in standard delivery set. A compact, ergonomic and easy to handheld Phased Array unit based on Total Focusing Method for easy-going imaging of inspection objects with two-dimensional and three-dimensional visualization and evaluation of inspection results.
>

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.
>

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).
>

On Demand Webinar: Improve the Efficiency and Accuracy of Inspection Scanning

On-demand webinar on scanning technology that helps improve the efficiency and accuracy of ultrasoni
...
c inspections in oil and gas, aerospace, manufacturing and other industrial applications. The webinar features a scanning solution for multiple inspection environments, including flat and curved specimens, magnetic and nonmagnetic surfaces and raster scanning over long distances. View it today.
>

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