Good morning .
I am making a study to measure elongation in bars of a lattice. I am interested in use strain gages. This options make me afraid of, because the lattice has a great vibrations. Will the measure of elongation be affected by the vibrations?
yes, it will. You can gather further information from the following links:
The use of strain gauges in vibration-based damage detectionhttp://iopscience.iop.org/article/10.1088/1742-6596/628/1/012119/pdfWhen using strain gauges to measure vibration of a beam, what is typical signal to noise ratio?https://www.researchgate.net/post/When_using_strain_gauges_to_measure_vibration_of_a_beam_what_is_ty...
Hope it helps!