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 -
738 views
Articles & News
Jasson Gryzagoridis
Jasson Gryzagoridis
11:55 Jan-08-2017
Tap Testing vs. Thermography

The authors of the article ‘Tap Testing vs Thermography’ which appeared on the January 2017 issue are responding to its critique by J.B.
Firstly, we thank J.B. for providing at least two very valuable references to quantitative assessments of NDT techniques applied to detecting flaws in aircraft composite laminate structures. (DOT/FAA/TC-15/4 & DOT/FAA/TC-15/6). The authors are also aware of Scandia Labs, in fact one of the authors visited and spent the better part of a day in the Lab at the Albuquerque airfield about 10 years ago. However, we believe J.B. misinterpreted the intention and conclusion of the article which was not to provide information or starting a study of POD (Probability of defect detection), but rather the comparison of two NDT techniques in dealing with monolithic/uniform metallic (hence dense/stiff (Normally, associated with the material’s Young’s modulus) and high thermal diffusivity (Normally strongly associated with the material’s thermal conductivity) vs. nonmetallic low thermal diffusivity materials. Both NDT techniques easily can be used as initial approaches in detecting discontinuities in the body beneath the surface of the component/structure. The article proves that the material’s properties do influence the outcome of the tests and hence it was concluded that the efficacy of a NDT technique to proceed with say a POD study, is substantially dependent on matching the technique with the material’s properties of the test pieces.

 
 Reply 
 

Product Spotlight

Echomac® Small

Available with up to eight channels of electronics to detect and evaluate thickness, flaws and eccen
...
tricity, this UT tester is housed in a convenient, smaller cabinet. This instrument can be used in conjunction with bubbler or immersion tank systems, or with a test bench or in laboratory applications. The Echomac® Small is available in the FD4, FD6 or FD6A versions.
>

NEOS III

NEOS III is Logos Imagings lightest DR system. With a built-in battery and internal wireless commu
...
nication, the NEOS III is perfect for users that want to quickly assess an item.
>

SITEX CPSERIES

Teledyne ICM’s CPSERIES has been designed with a view to revolutionizing the handling and perfor
...
mances of portable X-Ray sets. Despite having managed to halve the weight of similar portable X-Ray generators available on the market (while continuing to provide the same power output), the SITEX CPSERIES generators feature a shutter, a laser pointer, a beryllium window, an aluminum filter and two integrated diaphragms (customized sizes are available upon request). Without compromising the robustness and reliability for which ICM products are renowned, the small size and light weight of the SITEX CPSERIES will radically change the way that you perform your RT inspections. And you will see a positive impact in terms of both quality and return on investment (ROI).
>

TESTD-PT SYSTEM

Pulse thermography is a non-contact test method that is ideal for the characterization of thin fil
...
ms and coatings or the detection of defects. With a remarquable short test time and a high detection sensitivity, the Telops TESTD-PT is the perfect tool for non- destructive testing. With such high frame rates, it is even possible to investigate highly conductive or diffusive materials.
>

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