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Show posts MenuQuote from: SOMANATH MOHANTY on January 25, 2019, 02:29:11 AM
Questions
1- what is the physical meaning of stress intensity factor value to be Zero or negative in a centre crack under compression loading or it is not possible to get -ve SIF?
2-in a mixed mode case is j-integral is Path independent?
3- EPFM is applicable to nonlinear material behaviour case but as the process zone is nonlinear then how superposition principle is applicable to this EPFM plastic models like dugdale.. others?
Quote from: SOMANATH MOHANTY on August 30, 2018, 11:39:10 AM
hello, professor sir, I found your experimental video from your channel. Your explanations are awesome and very precise. I have a query on the tension test experiment.
I have a 2mm thickness sheet. I want to find the Poisson's ratio and youngs modulus through experiment. I am following the standard Flat test specimen size as per ASTM test standard DESIGNATION-E8/E8M. As per standard prescribed thickness range lies within (0.005 ≤ T ≤ 0.75) in. So is there any variation in results if I select a minimum thickness and also variation in the result if I select multiple samples. If variation exists on results then how much variation?