Strain Gauges on Bolts 1

[jmg2000]

How do you attach a strain guage to measure the tension in a bolt thats part of a bolted connection? Photos would also be great!!

 

[MintJulep]

Not on, in.

http://www.intertechnology.com/Strainsert/Strainsert_Stnd_Inter_Gauged_Hex_Head_Cap_Screws_SXS.html

 

[CoryPad]

Here is a direct link to Strainsert's product:

http://www.strainsert.com/pages/load-bolts-studs-general.php

Look on this page for the link Force Sensing Bolt/Stud General Specification Wiring Diagrams - it has a nice image of the product.

Alternatively, you can use standard thin film gages, like those from Vishay:

http://www.vishay.com

You then need to drill a hole from the head to the shank. I have seen nice diagonal holes that don't require any changes to the joint configuration.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.