I am interested in obtaining axial damping factors and bending damping factors of a material. I have data of uniaxial tensile tests. Is there anyone knows how I can calculate or find experimentally those parameters?
I don't think you can find damping factors using tensile tests. You will have to perform vibration tests (like an impact hammer test) to find out axial and bending damping factors. The process generally involves exciting a structure using a impact hammer and then measuring the output response at various locations using an accelerometer. Using this data, you can find the frequency response function containing information regarding damping at each mode, which could further be extracted using curve fitting procedures. There is plenty of literature on this topic which you could refer. Here is one article -https://www.maintenance.org/fileSendAction/fcType/0/fcOid/399590942963653618/filePointer/399590942964787702/fodoid/399590942964787700/28-_Experimental_Modal_Analysis.pdf
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