Is there any other method other than 0.2% offset method to find elastic strain, yield strength, young's modulus and UTS of polymeric materials from engineering stress-strain curve?
See, please, the paper on this topic, taking into account the peculiarity of correct determination of yield strength by commonly used 0.2% offset method
doi: 10.1007/s10439-020-02719-2. Epub 2021 Jan 21.