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Welcome to our new Fracture Toughness Testing enquiry form. We hope you will find it useful when specifying your testing requirements.
You will be able to upload any additional documents and images after completing the form.
Tensile Properties (Notch Position Parent)
Tensile Properties (Notch Position Weld)
A notification email has been sent to your email address. If you have additonal information or client specific specifications (documents, images etc.) please reply to the email and send them as attachments. If the documents are over 10mb in size please contact us to arrange a large file transfer
SENB - Single Edge Notched Bend
SENT - Single Edge Notch Tension
CT - Compact Tension
CTT - Centre Cracked Tension
BxB (where W = B)
Bx2B (where W = 2B)
BxB (where W = B), Bx2B (where W = 2B), 2BxB (where B = 2W)
Bx2B (where W = 2B)
Basic fracture plane identification
Basic fracture plane identification: cylindrical sections
The formula for calculating depth ratio is a~0~/W, where a~0~ is the initial crack length and W is the specimen width.
0.5 is standard for single point tests, 0.55 for unloading compliance tests and for all specimen types except CCT where a/W is a range 0.25-0.4
If the test is an unloading compliance test it is usual to use sidegrooves.
If the material available is large enough to accommodate the cross-section required for testing, but not the complete length of the specimen, then extensions may be welded on using electron beam welding.
The extension material should be either of the following:
Please indicate the number of specimens to be tested
Recommended for material in the as-welded condition to relieve residual stresses prior to fatigue pre-cracking. Not required if Notch Position is Parent
e.g. mill certificate, testing at ambient, testing at test temperature, assumed from data
e.g. pre-straining, heat treatment, soaking in environment
Apart from that required by the testing standard e.g. for HAZ notched specimens targeting a specific microstructure (SM)
Please select a standard. The requirement for Sidegrooves changes depending on the standard selected.
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