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 -

Sonatest Ltd
From our three distinct business centres in the UK, USA and CANADA, Sonatest design and produce a leading range of high performance ultrasonic NDT equipment and accessories.

730 views
Technical Discussions
abera
abera
00:55 Oct-09-2005
Testing of thin adhesive bonds

Im working on ultrasnic test of impact damaged adhesively bonded composites.I have tried pulse -ecdho method.THis method suffers sensitivity to test the adhesive layer,because the bond line thickness is too thin.Any body who has an idea about what altranative test I have to carry out in order to asses the damage in the adhesive bond line? The thickness of the adhesive bond lie is like 0.3mm.
Thank you


    
 
 
S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex , India, Joined Feb 2001, 785

S.V.Swamy

Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
785
08:41 Oct-11-2005
Re: Testing of thin adhesive bonds
Dear Abera,

try through-transmission technique. The portion that has suffered bond-damage will not allow efficient transmission. You need to establish the patterns using known defect standards. I can help you if needed.

Swamy

----------- Start Original Message -----------
: Im working on ultrasnic test of impact damaged adhesively bonded composites.I have tried pulse -ecdho method.THis method suffers sensitivity to test the adhesive layer,because the bond line thickness is too thin.Any body who has an idea about what altranative test I have to carry out in order to asses the damage in the adhesive bond line? The thickness of the adhesive bond lie is like 0.3mm.
: Thank you
------------ End Original Message ------------




    
 
 
Rajesh
R & D
Apex Research Technologies, United Kingdom, Joined Sep 2005, 1

Rajesh

R & D
Apex Research Technologies,
United Kingdom,
Joined Sep 2005
1
09:24 Oct-12-2005
Re: Testing of thin adhesive bonds
Dear Abera,

There are many other techniques for testing disbonding in layered structures. For selection of suitable technique for your application following additonal information will be required:

- type of composite you are testing(glass or carbon)
- thickness of the upper composite layer
- type of adhesive

Thanks.


----------- Start Original Message -----------
: Dear Abera,
: try through-transmission technique. The portion that has suffered bond-damage will not allow efficient transmission. You need to establish the patterns using known defect standards. I can help you if needed.
: Swamy
: : Im working on ultrasnic test of impact damaged adhesively bonded composites.I have tried pulse -ecdho method.THis method suffers sensitivity to test the adhesive layer,because the bond line thickness is too thin.Any body who has an idea about what altranative test I have to carry out in order to asses the damage in the adhesive bond line? The thickness of the adhesive bond lie is like 0.3mm.
: : Thank you
------------ End Original Message ------------




    
 
 
Simon Amallraja
Simon Amallraja
03:10 Oct-12-2005
Re: Testing of thin adhesive bonds
----------- Start Original Message -----------
: Dear Abera,
: There are many other techniques for testing disbonding in layered structures. For selection of suitable technique for your application following additonal information will be required:
: - type of composite you are testing(glass or carbon)
: - thickness of the upper composite layer
: - type of adhesive
: Thanks.
:
: : Dear Abera,
: : try through-transmission technique. The portion that has suffered bond-damage will not allow efficient transmission. You need to establish the patterns using known defect standards. I can help you if needed.
: : Swamy
: : : Im working on ultrasnic test of impact damaged adhesively bonded composites.I have tried pulse -ecdho method.THis method suffers sensitivity to test the adhesive layer,because the bond line thickness is too thin.Any body who has an idea about what altranative test I have to carry out in order to asses the damage in the adhesive bond line? The thickness of the adhesive bond lie is like 0.3mm.
: : : Thank you
------------ End Original Message ------------

Contact Mr. Chris Kirby of NDT Solutions. You can try thier website for Rapidscan Model, which can help you on this application.
www.ndtsolutions.com

Also you can contact Mr. Neeraj Bhardwaj of Ultran Group ( www.ultran.com), they do it with Non Contact UT (NCU)method.
Both are interesting for Composite applications.

D.Simon Amallraja.


    
 
 

Product Spotlight

Navic - Steerable Modular Automated Scanner

The Navic is a modular, motorized, steerable scanner designed to carry multiple attachments used
...
in various scanning and inspection applications. The Navic is capable of weld scanning (girth welds and long seam welds), automated corrosion mapping, and tank scanning.
>

Swift & Scorpion2 - a state-of-the-art remote-control ultrasonic crawler

The Swift and Scorpion2 dry-coupled, remote-access ultrasonic crawler bring major efficiency and d
...
ata improvements to tank shell inspections and other structures such as vessels and offshore installations.
>

HD-CR 35 NDT Computed Radiography System

Portable high-resolution CR scanner for all radiography applications - weld testing, profile images
...
and aerospace. No matter what type of radiographic testing you are performing, the unique TreFoc Technology of the HD-CR 35 NDT imaging plate scanner always guarantees the highest image quality.
>

Aerospace Systems - Automated Ultrasonic Inspection

USL are specialists in the design and manufacture of turnkey ultrasonic inspection systems for aer
...
ospace applications. From monolithic composites to complex honeycomb structures. This video shows just a few examples of what is possible, find out more at: www.ultrasonic-sciences.co.uk
>

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
s