Thank you very much for the comment, it is very encouraging for me. I have tried to highlight the important aspects of gage installation - surface preparation, gage bonding, lead wire soldering. I hope your students will benefit from the presentation. Vijay, Dynatec, 130 Palace Cross Road, Bangalore 560020. email: vijay.dynatec@gmail.com
Sir, we allow adhesive to cure for 24 hours during surface preparation here. If I am doing it on field (i.e. bridge), it will come in contact with dust during this 24 hours. Will it create any problem? What precaution should i take in such situation?
After applying and spreading the adhesive, you may cover the adhesive area with a plastic or thick paper tray , sealing the edges with cellophane tape. The adhesive does not need air for curing, and when it is cured , it is impervious to dust or moisture. Any fine dust on the surface of the adhesive will be removed when you abrade it to get it level with the concrete surface.
may I ask a question, why the size of the strain gauge used is small and do we need to put a large size strain gauge to measure large sample's deformation?
Strain is ratio of deformation to original length. This is regardless of sample size. Strain gages measure only the strain, not the total deformation. Depending on the size of the test specimen, you can choose the size of the gage to be used. Most often, the gage with 3 mm grid length is used - this is comfortable size for most applications, and the solder tabs are big enough to solder easily. Straingages smaller than this need more skill and care while bonding, and very small straingages are difficult to manufacture and are normally more expensive. Please see the video on Strain gage averaging effect where comparison of two different sizes of gages is shown. I hope this answers your query, please let me know if you need more information
Please see our video on straingage on CFRP material . The procedure is very similar to bonding straingage on concrete, except that initial cleaning with soap water is not necessary of the composite is clean. Regards
Please write to us about your requirement - how many gags do you need . The gages are sold in packets of 5 gages each, so you have to buy them in multiples of 5 gages. Do you also require the accessories ( cleaning chemicals, adhesives, solder etc)
Outstanding performance! A textbook gage installation! I shall refer to it during my classes
To watch more videos about strain gage installation please check our official channel: ua-cam.com/channels/oTPJFJ7vKBBZkdKrTQM33A.htmlvideos
Thank you very much for the comment, it is very encouraging for me. I have tried to highlight the important aspects of gage installation - surface preparation, gage bonding, lead wire soldering. I hope your students will benefit from the presentation.
Vijay, Dynatec, 130 Palace Cross Road, Bangalore 560020. email: vijay.dynatec@gmail.com
Por consulta, ¿hubiera generado alguna micro deformación si el vehículo hubiera transitado en dirección perpendicular a la colocación de la SG?
Muchas gracias, por su tiempo. Muy explicito
Excelent video, thanks for sharing
Thank you
Very well explained sir. Thank you for sharing.
Thank you for your comment. I will be glad to provide more information on this - please contact me on vijay.dynatec@gmail.com
Sir, we allow adhesive to cure for 24 hours during surface preparation here. If I am doing it on field (i.e. bridge), it will come in contact with dust during this 24 hours. Will it create any problem? What precaution should i take in such situation?
After applying and spreading the adhesive, you may cover the adhesive area with a plastic or thick paper tray , sealing the edges with cellophane tape. The adhesive does not need air for curing, and when it is cured , it is impervious to dust or moisture. Any fine dust on the surface of the adhesive will be removed when you abrade it to get it level with the concrete surface.
@@DynatecIndia Thank you very much sir..!! For such quick response and solving my query.
@@bhumikhalani5676 I am glad I could answer your query satisfactorily.
may I ask a question, why the size of the strain gauge used is small and do we need to put a large size strain gauge to measure large sample's deformation?
Strain is ratio of deformation to original length. This is regardless of sample size. Strain gages measure only the strain, not the total deformation.
Depending on the size of the test specimen, you can choose the size of the gage to be used. Most often, the gage with 3 mm grid length is used - this is comfortable size for most applications, and the solder tabs are big enough to solder easily.
Straingages smaller than this need more skill and care while bonding, and very small straingages are difficult to manufacture and are normally more expensive.
Please see the video on Strain gage averaging effect where comparison of two different sizes of gages is shown.
I hope this answers your query, please let me know if you need more information
sir, do you have standard test method for measuring total strain?
and what is the standard size of beam to test it? can we use the size for creep and shrinkage test?
Thank you for sharing
Good sir great job 👌
Thank you for your kind comment. Regards, Vijay (vijay.dynatec@gmail.com)
How to install strain gauge for composite tensile test specimen
I have recently put up a video on bonding of strain gage on FRP material on Dynatec India channel of UA-cam., please review this.
Best regards
Please see our video on straingage on CFRP material . The procedure is very similar to bonding straingage on concrete, except that initial cleaning with soap water is not necessary of the composite is clean. Regards
Great
Where i can buy these types of strain gauge??
Please write to us about your requirement - how many gags do you need . The gages are sold in packets of 5 gages each, so you have to buy them in multiples of 5 gages. Do you also require the accessories ( cleaning chemicals, adhesives, solder etc)
@@DynatecIndia link please
@@DynatecIndia link please
@@salawudeenabdultawab4462 The link is :
ua-cam.com/channels/WqBcaLPa5eu5SXv2AjDM7g.htmlvideos?view_as=subscriber
Hi, how to order cleaning chemicals, adhesives?
Suprbbb
Thank you , Best regards