×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Standard mechanical tests for laminates

Standard mechanical tests for laminates

Standard mechanical tests for laminates

(OP)
We have some samples of SRBP which has been in service and want to check how the properties compare with original (in particular, tensile strength and impact strength).

Does anyone know of standard properties for SRBP? Also, I've been informed that ASTM D3039 is applicable to tensile testing, and ASMT D3763 may be applicable for impact testing. Is this correct? If not, what testing should we look to perform?

Thanks

RE: Standard mechanical tests for laminates

SRBP = ???

Do you have the original strength values?  were they generated by you or the vendor?  what test method was used to generate the original values (if they came from the vendor and the datasheet does not list the test method, contact the vendor for the info)?

Suggest you go to www.astm.org and purchase a copy of D4762, Standard Guide for Testing Polymer Matrix Composite Materials
 

RE: Standard mechanical tests for laminates

SRBP - Special Really Bendable Plastic?
     - Saturated Red and Blue Pigments?
     - Standard Reinforced Black Pieces?
 

Wes C.
------------------------------
No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced.

RE: Standard mechanical tests for laminates

(OP)
Apologies,

SRBP = Synthetic Resin Bonded Paper

RE: Standard mechanical tests for laminates

I would agree with you. ASTM 3039 is generally used for testing of polymer matrix composites. However, you may want to look into ASTM 256, IZOD impact test. It provides very useful data, in regards to energy absorption with a much less complex testing fixture.

Another impact test is the CHARPY impact test which, as of late, has grown in popularity for many companies.  

RE: Standard mechanical tests for laminates

(OP)
Thanks for all your input. In the end, we found a standard which was very specific to the material:

Standard BS EN 60893-2:2004
Insulating materials. Industrial rigid laminated sheets based on thermosetting resins for electrical purposes. Methods of test

Listed are methods for flex, tensile and impact amongst other things.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources